MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cb51a857dc33e532754e21259545e94dd518baff0783b8dd0623a20621af3a28. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Formbook


Vendor detections: 17


Intelligence 17 IOCs YARA 3 File information Comments 1
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SHA256 hash: cb51a857dc33e532754e21259545e94dd518baff0783b8dd0623a20621af3a28
SHA3-384 hash: 196ffd2d65703c2904316e25044fc6e1a998a8f5080ed1171d03d256d564c604d104190fd183b8cd8ae8c39ab794ae12
SHA1 hash: 678981a9dd87757102383c8179213e4fdb50f981
MD5 hash: 639b8c7c6c073dba732b3bf637198ef8
humanhash: high-football-jersey-butter
File name:639b8c7c6c073dba732b3bf637198ef8
Download: download sample
Signature Formbook
Create hunting rule
File size:1'191'070 bytes
First seen:2022-11-07 13:19:23 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash fcf1390e9ce472c7270447fc5c61a0c1 (863 x DCRat, 118 x NanoCore, 94 x njrat)
ssdeep 12288:NQnk3GDYKGcblOOO8veSJJ9F5qhBWX7riHB7BF7M9VVRyF/2gLrQ8H5Z/wwC+r1Q:XAOcZPOeJ9FEeHiT7MdIF/2gzf3hL69p
TLSH T18A4513C1FFFEC9F2DD6B1531593BAA10297D39600FE4DA5E73980E6C9A70091512CBA2
TrID 91.0% (.EXE) WinRAR Self Extracting archive (4.x-5.x) (265042/9/39)
3.6% (.EXE) Win64 Executable (generic) (10523/12/4)
1.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
1.5% (.EXE) Win32 Executable (generic) (4505/5/1)
0.6% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 99396100181c0cc0 (1 x Formbook)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
169
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
ta505
Create hunting rule
ID:
1
File name:
PO ACTMETAL03605160.xla
Verdict:
Malicious activity
Analysis date:
2022-11-07 11:27:35 UTC
Tags:
macros macros-on-open ta505 trojan loader formbook stealer
Link:
https://app.any.run/tasks/7490b0bc-5ee6-4b9b-8a1b-e5d876a85d04

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/329917/
Detection(s):
SecuriteInfo.com.Gen.Variant.Johnnie.221809.751.14920.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Searching for the window
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file in the %temp% subdirectories
Enabling the 'hidden' option for files in the %temp% directory
Creating a process from a recently created file
Creating a file
Launching a process
Launching the default Windows debugger (dwwin.exe)
Forced shutdown of a system process
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
  6/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/49610/overview
Behaviour
MalwareBazaar
MeasuringTime
EvasionQueryPerformanceCounter
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware overlay packed setupapi.dll shdocvw.dll shell32.dll
Link:
https://www.filescan.io/uploads/636906075a664bb7b89c5779/reports/aca336c9-e745-4d5a-847e-259e44b7139f/overview
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/0caf93ec-1f9a-4d42-b61a-67f76cc20951
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1107782
Signature
Allocates memory in foreign processes
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Tries to detect virtualization through RDTSC time measurements
Uses netstat to query active network connections and open ports
Writes to foreign memory regions
Yara detected AntiVM autoit script
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 740445 Sample: 4bwobTQj71.exe Startdate: 07/11/2022 Architecture: WINDOWS Score: 100 42 Malicious sample detected (through community Yara rule) 2->42 44 Antivirus detection for URL or domain 2->44 46 Multi AV Scanner detection for submitted file 2->46 48 4 other signatures 2->48 12 4bwobTQj71.exe 3 31 2->12         started        process3 file4 38 C:\Users\user\AppData\Local\Temp\...\sqia.exe, PE32 12->38 dropped 15 wscript.exe 1 12->15         started        process5 dnsIp6 40 192.168.2.1 unknown unknown 15->40 18 sqia.exe 2 15->18         started        process7 signatures8 50 Antivirus detection for dropped file 18->50 52 Multi AV Scanner detection for dropped file 18->52 54 Writes to foreign memory regions 18->54 56 3 other signatures 18->56 21 RegSvcs.exe 18->21         started        24 RegSvcs.exe 18->24         started        process9 signatures10 58 Modifies the context of a thread in another process (thread injection) 21->58 60 Maps a DLL or memory area into another process 21->60 62 Sample uses process hollowing technique 21->62 64 2 other signatures 21->64 26 explorer.exe 21->26 injected process11 signatures12 66 Uses netstat to query active network connections and open ports 26->66 29 NETSTAT.EXE 26->29         started        32 mstsc.exe 26->32         started        process13 signatures14 68 Modifies the context of a thread in another process (thread injection) 29->68 70 Maps a DLL or memory area into another process 29->70 72 Tries to detect virtualization through RDTSC time measurements 29->72 34 cmd.exe 1 29->34         started        process15 process16 36 conhost.exe 34->36         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/cb51a857dc33e532754e21259545e94dd518baff0783b8dd0623a20621af3a28/
Threat name:
Win32.Trojan.Lisk
Create hunting rule
Status:
Malicious
First seen:
2022-11-07 13:20:51 UTC
File Type:
PE (Exe)
Extracted files:
40
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zni2qv64gpste5koeeszkrpjjxkrrox7a6b3rxigeoraminphiua._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:nurs rat spyware stealer trojan
Link:
https://tria.ge/reports/221107-qk4vmsbfbr/
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
Formbook payload
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/4f5782bb-b482-4544-bf3e-2ec50ae892de
Unpacked files
SH256 hash:
06584dc8637061fcb5616fe38ec76aab143c9aa005a00797cf03c4ac8fa7ff01
MD5 hash:
93fa4c12ece25549bdf314f3986d8d58
SHA1 hash:
a733fd06ef83e1a6fadd647f5e27c07eaa243b87
Detections:
FormBook
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/9c283091-6176-4d5a-a90f-63de5ca6d6b4/
Parent samples :
fd8d1fdc81053818002dd60fb8d7b0d8e37ee984d77760750456e1773c2c0bcc
cb51a857dc33e532754e21259545e94dd518baff0783b8dd0623a20621af3a28
49449720e228b03f82a7d148c4b91d0f136c104c65d0349eb1f349f27d0cf1d1
ebb76e46e178491fd48787e80ce952910124d6f1a00c92744a5f84278192030c
SH256 hash:
006484555801f28922cee24e13d29417eeb09aa9722f0fc58a7ff10c9cbf8f65
MD5 hash:
36d897a57ca7da20117f068d624d6dcd
SHA1 hash:
e5b5afb1811958f4e6bdd44d7b6aa0339261091f
Link:
https://www.unpac.me/results/9c283091-6176-4d5a-a90f-63de5ca6d6b4/
SH256 hash:
cb51a857dc33e532754e21259545e94dd518baff0783b8dd0623a20621af3a28
MD5 hash:
639b8c7c6c073dba732b3bf637198ef8
SHA1 hash:
678981a9dd87757102383c8179213e4fdb50f981
Link:
https://www.unpac.me/results/9c283091-6176-4d5a-a90f-63de5ca6d6b4/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/cb51a857dc33/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/cb51a857dc33e532754e21259545e94dd518baff0783b8dd0623a20621af3a28

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB
Rule name:sfx_pdb
Create hunting rule
Author:@razvialex
Description:Detect interesting files containing sfx with pdb paths.
Rule name:sfx_pdb_winrar_restrict
Create hunting rule
Author:@razvialex
Description:Detect interesting files containing sfx with pdb paths.

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Formbook

Executable exe cb51a857dc33e532754e21259545e94dd518baff0783b8dd0623a20621af3a28

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/329917/
  
URLhaus
https://urlhaus.abuse.ch/url/2403249/

Comments


Avatar
zbet commented on 2022-11-07 13:19:26 UTC

url : hxxp://62.108.40.71/new/PT03605160.exe