Joe Sandbox Cloud Basic Analysis Report

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Windows Analysis Report
0321423605241625.exe

Overview

General Information

Sample Name:0321423605241625.exe
Analysis ID:756155
MD5:edb1382c354ec6c09c53473e5335703a
SHA1:a1a5fbfce034731cba1072bab6b97b26c8a90c79
SHA256:c2c6eec67a1561c3a49179ddf756480876d92588c2e83d64246a04c3d724cb3d
Tags:exemodiloaderxloader
Infos:

Detection

DBatLoader, FormBook
Score:100
Range:0 - 100
Whitelisted:false
Confidence:100%

Signatures

Multi AV Scanner detection for submitted file
Yara detected FormBook
Malicious sample detected (through community Yara rule)
Antivirus / Scanner detection for submitted sample
Yara detected DBatLoader
Antivirus detection for URL or domain
Antivirus detection for dropped file
Multi AV Scanner detection for dropped file
Snort IDS alert for network traffic
Sample uses process hollowing technique
Maps a DLL or memory area into another process
Writes to foreign memory regions
Machine Learning detection for sample
Allocates memory in foreign processes
Injects a PE file into a foreign processes
Queues an APC in another process (thread injection)
Tries to detect virtualization through RDTSC time measurements
Machine Learning detection for dropped file
Modifies the context of a thread in another process (thread injection)
C2 URLs / IPs found in malware configuration
Creates a thread in another existing process (thread injection)
Uses 32bit PE files
Yara signature match
Antivirus or Machine Learning detection for unpacked file
Contains functionality to query locales information (e.g. system language)
Uses code obfuscation techniques (call, push, ret)
Detected potential crypto function
Found potential string decryption / allocating functions
Sample execution stops while process was sleeping (likely an evasion)
JA3 SSL client fingerprint seen in connection with other malware
Contains functionality to call native functions
Contains functionality to dynamically determine API calls
IP address seen in connection with other malware
Contains functionality for execution timing, often used to detect debuggers
Abnormal high CPU Usage
Enables debug privileges
Creates a DirectInput object (often for capturing keystrokes)
Extensive use of GetProcAddress (often used to hide API calls)
Drops PE files
Tries to load missing DLLs
Contains functionality to read the PEB
Checks if the current process is being debugged
Found large amount of non-executed APIs
Creates a process in suspended mode (likely to inject code)
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)

Classification

Process Tree

  • System is w10x64
  • 0321423605241625.exe (PID: 3140 cmdline: C:\Users\user\Desktop\0321423605241625.exe MD5: EDB1382C354EC6C09C53473E5335703A)
    • colorcpl.exe (PID: 3576 cmdline: C:\Windows\System32\colorcpl.exe MD5: 746F3B5E7652EA0766BA10414D317981)
      • explorer.exe (PID: 3324 cmdline: C:\Windows\Explorer.EXE MD5: AD5296B280E8F522A8A897C96BAB0E1D)
        • Mwqrxeuz.exe (PID: 5528 cmdline: "C:\Users\Public\Libraries\Mwqrxeuz.exe" MD5: EDB1382C354EC6C09C53473E5335703A)
          • colorcpl.exe (PID: 4028 cmdline: C:\Windows\System32\colorcpl.exe MD5: 746F3B5E7652EA0766BA10414D317981)
        • raserver.exe (PID: 5928 cmdline: C:\Windows\SysWOW64\raserver.exe MD5: 2AADF65E395BFBD0D9B71D7279C8B5EC)
          • cmd.exe (PID: 4028 cmdline: /c del "C:\Windows\SysWOW64\colorcpl.exe" MD5: F3BDBE3BB6F734E357235F4D5898582D)
            • conhost.exe (PID: 1412 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
  • cleanup

Malware Configuration

Threatname: FormBook

{"C2 list": ["www.rematedeldia.com/euv4/"], "decoy": ["anniebapartments.com", "hagenbicycles.com", "herbalist101.com", "southerncorrosion.net", "kuechenpruefer.com", "tajniezdrzi.quest", "segurofunerarioar.com", "boardsandbeamsdecor.com", "alifdanismanlik.com", "pkem.top", "mddc.clinic", "handejqr.com", "crux-at.com", "awp.email", "hugsforbubbs.com", "cielotherepy.com", "turkcuyuz.com", "teamidc.com", "lankasirinspa.com", "68135.online", "oprimanumerodos.com", "launchclik.com", "customapronsnow.com", "thecuratedpour.com", "20dzwww.com", "encludemedia.com", "kreativevisibility.net", "mehfeels.com", "oecmgroup.com", "alert78.info", "1207rossmoyne.com", "spbutoto.com", "t1uba.com", "protection-onepa.com", "byausorsm26-plala.xyz", "bestpleasure4u.com", "allmnlenem.quest", "mobilpartes.com", "fabio.tools", "bubu3cin.com", "nathanmartinez.digital", "shristiprintingplaces.com", "silkyflawless.com", "berylgrote.top", "laidbackfurniture.store", "leatherman-neal.com", "uschargeport.com", "the-pumps.com", "deepootech.com", "drimev.com", "seo-art.agency", "jasabacklinkweb20.com", "tracynicolalamond.com", "dandtglaziers.com", "vulacils.com", "bendyourtongue.com", "gulfund.com", "ahmadfaizlajis.com", "595531.com", "metavillagehub.com", "librairie-adrienne.com", "77777.store", "gongwenbo.com", "game2plays.com"]}

Threatname: DBatLoader

{"Download Url": "https://onedrive.live.com/download?cid=E0CF7F9E6AAF27EF&resid=E0CF7F9E6AAF27EF%21846&authkey=AOLP5PRESPN2npo"}

Yara Signatures

Dropped Files

SourceRuleDescriptionAuthorStrings
C:\Users\Public\Libraries\zuexrqwM.urlMethodology_Shortcut_HotKeyDetects possible shortcut usage for .URL persistence@itsreallynick (Nick Carr)
  • 0x58:$hotkey: \x0AHotKey=2
  • 0x0:$url_explicit: [InternetShortcut]
C:\Users\Public\Libraries\zuexrqwM.urlMethodology_Contains_Shortcut_OtherURIhandlersDetects possible shortcut usage for .URL persistence@itsreallynick (Nick Carr)
  • 0x14:$file: URL=
  • 0x0:$url_explicit: [InternetShortcut]

Memory Dumps

SourceRuleDescriptionAuthorStrings
00000009.00000002.553690913.0000000002C80000.00000040.10000000.00040000.00000000.sdmpJoeSecurity_FormBookYara detected FormBookJoe Security
    00000009.00000002.553690913.0000000002C80000.00000040.10000000.00040000.00000000.sdmpWindows_Trojan_Formbook_1112e116unknownunknown
    • 0x6191:$a1: 3C 30 50 4F 53 54 74 09 40
    • 0x1aee0:$a2: 74 0A 4E 0F B6 08 8D 44 08 01 75 F6 8D 70 01 0F B6 00 8D 55
    • 0x97ef:$a3: 1A D2 80 E2 AF 80 C2 7E EB 2A 80 FA 2F 75 11 8A D0 80 E2 01
    • 0x148b7:$a4: 04 83 C4 0C 83 06 07 5B 5F 5E 8B E5 5D C3 8B 17 03 55 0C 6A 01 83
    00000009.00000002.553690913.0000000002C80000.00000040.10000000.00040000.00000000.sdmpFormbook_1autogenerated rule brought to you by yara-signatorFelix Bilstein - yara-signator at cocacoding dot com
    • 0x8608:$sequence_0: 03 C8 0F 31 2B C1 89 45 FC
    • 0x89a2:$sequence_0: 03 C8 0F 31 2B C1 89 45 FC
    • 0x146b5:$sequence_1: 3C 24 0F 84 76 FF FF FF 3C 25 74 94
    • 0x141a1:$sequence_2: 3B 4F 14 73 95 85 C9 74 91
    • 0x147b7:$sequence_3: 3C 69 75 44 8B 7D 18 8B 0F
    • 0x1492f:$sequence_4: 5D C3 8D 50 7C 80 FA 07
    • 0x93ba:$sequence_5: 0F BE 5C 0E 01 0F B6 54 0E 02 83 E3 0F C1 EA 06
    • 0x1341c:$sequence_6: 57 89 45 FC 89 45 F4 89 45 F8
    • 0xa132:$sequence_7: 66 89 0C 02 5B 8B E5 5D
    • 0x19ba7:$sequence_8: 3C 54 74 04 3C 74 75 F4
    • 0x1ac4a:$sequence_9: 56 68 03 01 00 00 8D 85 95 FE FF FF 6A 00
    00000009.00000002.553690913.0000000002C80000.00000040.10000000.00040000.00000000.sdmpFormbookdetect Formbook in memoryJPCERT/CC Incident Response Group
    • 0x16ad9:$sqlite3step: 68 34 1C 7B E1
    • 0x16bec:$sqlite3step: 68 34 1C 7B E1
    • 0x16b08:$sqlite3text: 68 38 2A 90 C5
    • 0x16c2d:$sqlite3text: 68 38 2A 90 C5
    • 0x16b1b:$sqlite3blob: 68 53 D8 7F 8C
    • 0x16c43:$sqlite3blob: 68 53 D8 7F 8C
    00000009.00000002.553760643.0000000002D80000.00000040.80000000.00040000.00000000.sdmpJoeSecurity_FormBookYara detected FormBookJoe Security