MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d5b73f94baae872466c1f7435d9c3ee66c5bdd606b1bfbae775c9acb19f5c42b. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments
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SHA256 hash: d5b73f94baae872466c1f7435d9c3ee66c5bdd606b1bfbae775c9acb19f5c42b
SHA3-384 hash: 9035738ef7ec1da612812ceb3e0035d4cae50efd0f6779df6d8b2e09d5fb27b92af9f63d9a8cb2f79659aa04b596d51f
SHA1 hash: fe6d078aee396f443ee11d3936c3a1c016bcb071
MD5 hash: 31fc36dc329bcf9c029d7bb6b607fb3f
humanhash: low-artist-pip-lima
File name:uBeCubAdv2AvFdP.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'067'520 bytes
First seen:2022-11-11 20:53:09 UTC
Last seen:2022-11-11 22:46:59 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:vUEkc/3UT4OOtZ7+w17iRBXeFsk+rctCn9027wD0RpQMkVwN33LJ6BokRLgdF:vUY/vtN12fXm4rctcq8wnnKRJgW
TLSH T1B435BFA034702FB4D67EDFF29628162483F32DA9625AF64E4CE170EA1573FD24660E17
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13097/50/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
196
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/332627/
Detection(s):
Sanesecurity.Rogue.0hr.20221108-1435.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/636eb66920a0b4943a8ef7df/reports/b48901e0-3266-494a-a9ce-1898bd224b7e/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.
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b2125e04-48fa-4cb9-a061-d21816e454d7
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1111542
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for sample
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 submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 744238 Sample: uBeCubAdv2AvFdP.exe Startdate: 11/11/2022 Architecture: WINDOWS Score: 100 32 Snort IDS alert for network traffic 2->32 34 Malicious sample detected (through community Yara rule) 2->34 36 Multi AV Scanner detection for submitted file 2->36 38 7 other signatures 2->38 10 uBeCubAdv2AvFdP.exe 3 2->10         started        process3 file4 28 C:\Users\user\...\uBeCubAdv2AvFdP.exe.log, ASCII 10->28 dropped 50 Tries to detect virtualization through RDTSC time measurements 10->50 52 Injects a PE file into a foreign processes 10->52 14 uBeCubAdv2AvFdP.exe 10->14         started        signatures5 process6 signatures7 54 Modifies the context of a thread in another process (thread injection) 14->54 56 Maps a DLL or memory area into another process 14->56 58 Sample uses process hollowing technique 14->58 60 Queues an APC in another process (thread injection) 14->60 17 explorer.exe 14->17 injected process8 dnsIp9 30 www.akomachinery.xyz 23.231.104.102, 49702, 80 EONIX-COMMUNICATIONS-ASBLOCK-62904US United States 17->30 40 System process connects to network (likely due to code injection or exploit) 17->40 42 Performs DNS queries to domains with low reputation 17->42 21 mstsc.exe 17->21         started        signatures10 process11 signatures12 44 Modifies the context of a thread in another process (thread injection) 21->44 46 Maps a DLL or memory area into another process 21->46 48 Tries to detect virtualization through RDTSC time measurements 21->48 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d5b73f94baae872466c1f7435d9c3ee66c5bdd606b1bfbae775c9acb19f5c42b/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2022-11-08 13:37:55 UTC
File Type:
PE (.Net Exe)
Extracted files:
31
AV detection:
18 of 26 (69.23%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=2w3t7ff2v2dsizwb65bv3hb64zwfxxlanmn7xltxlsnmwgpvyqvq._file
Verdict:
malicious
Label(s):
formbook
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cobaltstrike
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Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:gnu6 rat spyware stealer trojan
Link:
https://tria.ge/reports/221111-zpvbfaec91/
Behaviour
Enumerates system info in registry
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
Suspicious use of SetThreadContext
Deletes itself
Formbook payload
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/c8c93887-0ec2-429a-a298-aafecc8bb23f
Unpacked files
SH256 hash:
414f0035e00444bb30a4cb2fdb98daf1dc04f5bea8236e476446499d4abfff2c
MD5 hash:
be1d830ba829adbb6769b0171ce4d2c6
SHA1 hash:
a7be4c1c171b324134acaa78e33cce27f89bd234
Detections:
FormBook
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win_formbook_auto
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win_formbook_g0
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Link:
https://www.unpac.me/results/804daa9e-df38-41f8-b0fa-7ae66e2a167b/
Parent samples :
d5b73f94baae872466c1f7435d9c3ee66c5bdd606b1bfbae775c9acb19f5c42b
9e8c945e4dce2949d4c36405c11ad924f4aa57bcc9dc32a409cef23fbc725710
SH256 hash:
32cbfda47afbebf3d413513a96c8b6f0c253ac3f6d537fde89feccf51911b718
MD5 hash:
749be66f058a2da1289ab550760f3259
SHA1 hash:
980306a5ac4cc5d47d7a4aab4f8edb310c662914
Link:
https://www.unpac.me/results/804daa9e-df38-41f8-b0fa-7ae66e2a167b/
SH256 hash:
7f272c4db499b1501a5ea1711d23de0e6a0c07faf16275e9b01722dae889c7c9
MD5 hash:
dd8b9511dda8eb7c84e1621046828883
SHA1 hash:
7f715270ffcadcba5c3148d2a0cecfaaf6c2e805
Link:
https://www.unpac.me/results/804daa9e-df38-41f8-b0fa-7ae66e2a167b/
SH256 hash:
da4a74c2dce8979591144cf5b8190d8c09aceb1a853eaad66c30d440faf3c319
MD5 hash:
bbfe4553a748188d27d67672cfa338ac
SHA1 hash:
7ec0f57455eb5329518993aeb73b35a388a111e3
Link:
https://www.unpac.me/results/804daa9e-df38-41f8-b0fa-7ae66e2a167b/
SH256 hash:
92bd802a0f7eb1213758a6c1a4c07302e0320c3a2aeb6273b0303dd3bbdefe90
MD5 hash:
046e97119545e5abde2f40b5dc3a0344
SHA1 hash:
3e69b67ddff2554c8cd72e129d4da9c8acd9d331
Link:
https://www.unpac.me/results/804daa9e-df38-41f8-b0fa-7ae66e2a167b/
SH256 hash:
d5b73f94baae872466c1f7435d9c3ee66c5bdd606b1bfbae775c9acb19f5c42b
MD5 hash:
31fc36dc329bcf9c029d7bb6b607fb3f
SHA1 hash:
fe6d078aee396f443ee11d3936c3a1c016bcb071
Link:
https://www.unpac.me/results/804daa9e-df38-41f8-b0fa-7ae66e2a167b/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/d5b73f94baae872466c1f7435d9c3ee66c5bdd606b1bfbae775c9acb19f5c42b

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:pe_imphash
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Rule name:Skystars_Malware_Imphash
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Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

Formbook

Executable exe d5b73f94baae872466c1f7435d9c3ee66c5bdd606b1bfbae775c9acb19f5c42b

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/332627/

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