MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ab178721c79dcba37cf1979de6f85c6b3531371b8492749970d91773a505949a. 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: 20


Intelligence 20 IOCs YARA 4 File information Comments
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SHA256 hash: ab178721c79dcba37cf1979de6f85c6b3531371b8492749970d91773a505949a
SHA3-384 hash: 138bd0fd42a4412ca324b4c1835156a974e3d9fd3b1d9c92be44b5f229841aec9ccf8275ba797cefe80def91a2accb6a
SHA1 hash: 8864364fb585590e5cddc1356d44ce1ba731dbff
MD5 hash: ef494e2d8600338e6c4abb514a6f2fdb
humanhash: cola-pennsylvania-stairway-india
File name:BAT6357377.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:642'560 bytes
First seen:2024-09-02 07:07:07 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'738 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:j0R/Uv8Ua4u1oV2KCe/bldkNzOzmXYu5dq1TEpT:j0R8EUa41FMkzEdq1Ip
Threatray 1'811 similar samples on MalwareBazaar
TLSH T1E3D412BA62DF0A07C9F5B7FF48ED469F63B08532A642C3A80CC455D56A067C70C59AB3
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
File icon (PE):PE icon
dhash icon f0cccaf2fac2dcf0 (2 x RemcosRAT, 1 x Formbook)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
393
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
BAT6357377.exe
Verdict:
Malicious activity
Analysis date:
2024-09-02 07:21:00 UTC
Tags:
formbook xloader stealer
Link:
https://app.any.run/tasks/4d8c06d6-685f-46c5-9eac-ddb70b4aaf01

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.BackDoor.AgentTeslaNET.34.12377.10349.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66d56456a0c486d2f7940801
Tags:
Execution Network Static Stealth Msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Launching cmd.exe command interpreter
Setting browser functions hooks
Forced shutdown of a system process
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/66d56455cf394bc42d268dfe/reports/9cdf51dc-76a3-42f7-ad76-b118391f962f/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/ab178721c79dcba37cf1979de6f85c6b3531371b8492749970d91773a505949a
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/7adcdf39-ebb6-4dfd-93b5-b8610d836d5a
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1502765
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
C2 URLs / IPs found in malware configuration
Found direct / indirect Syscall (likely to bypass EDR)
Found malware configuration
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
Machine Learning detection for dropped file
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)
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
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Switches to a custom stack to bypass stack traces
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1502765 Sample: BAT6357377.exe Startdate: 02/09/2024 Architecture: WINDOWS Score: 100 66 Found malware configuration 2->66 68 Malicious sample detected (through community Yara rule) 2->68 70 Sigma detected: Scheduled temp file as task from temp location 2->70 72 8 other signatures 2->72 10 BAT6357377.exe 7 2->10         started        14 npDpoOL.exe 5 2->14         started        process3 file4 46 C:\Users\user\AppData\Roaming\npDpoOL.exe, PE32 10->46 dropped 48 C:\Users\user\...\npDpoOL.exe:Zone.Identifier, ASCII 10->48 dropped 50 C:\Users\user\AppData\Local\...\tmp2F57.tmp, XML 10->50 dropped 52 C:\Users\user\AppData\...\BAT6357377.exe.log, ASCII 10->52 dropped 76 Uses schtasks.exe or at.exe to add and modify task schedules 10->76 78 Adds a directory exclusion to Windows Defender 10->78 80 Tries to detect virtualization through RDTSC time measurements 10->80 82 Switches to a custom stack to bypass stack traces 10->82 16 BAT6357377.exe 10->16         started        19 powershell.exe 23 10->19         started        21 schtasks.exe 1 10->21         started        84 Multi AV Scanner detection for dropped file 14->84 86 Machine Learning detection for dropped file 14->86 88 Injects a PE file into a foreign processes 14->88 23 npDpoOL.exe 14->23         started        25 schtasks.exe 1 14->25         started        signatures5 process6 signatures7 54 Modifies the context of a thread in another process (thread injection) 16->54 56 Maps a DLL or memory area into another process 16->56 58 Sample uses process hollowing technique 16->58 60 Queues an APC in another process (thread injection) 16->60 27 explorer.exe 86 1 16->27 injected 62 Loading BitLocker PowerShell Module 19->62 29 WmiPrvSE.exe 19->29         started        31 conhost.exe 19->31         started        33 conhost.exe 21->33         started        64 Found direct / indirect Syscall (likely to bypass EDR) 23->64 35 conhost.exe 25->35         started        process8 process9 37 WWAHost.exe 27->37         started        40 systray.exe 27->40         started        signatures10 74 Tries to detect virtualization through RDTSC time measurements 37->74 42 cmd.exe 37->42         started        process11 process12 44 conhost.exe 42->44         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/ab178721c79dcba37cf1979de6f85c6b3531371b8492749970d91773a505949a
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ab178721c79dcba37cf1979de6f85c6b3531371b8492749970d91773a505949a/
Threat name:
Win32.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2024-09-02 04:02:48 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vmlyoiohtxf2g7hrs6o6n6c4nm2tcny3qsjhjglq3elxhjifssna._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1b9e77854e399411406c1f8e3fa6e0bceb4a1284c7bedeed503bcb24bdcfbe30
Formbook
2a6ee6b0b17d33a011119d09d27e466d0d640314992d262f03a3789c464044d6
Formbook
795a83d84b04c245a8b0ad9221ea20a4635ad6654f22d533f499a5523ee2fe71
Formbook
94f29a8158717b4c268b41e8eb72bc7301f2d4578dc41a06deabe79ff8e767dd
Formbook
e8a05062de1ccf4ae13ae370235b08b0d7b5ec5065f18afa236e3208bded45d5
Formbook
eaffc7cc6da06f5894642bb88fff4a0186cf61100558af3cb552145f86d8e041
Formbook
+ 1'801 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:h209 discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/240902-hx8elavdmr/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Formbook payload
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/95e729a0-241b-49f1-b6a9-944179b3d7e7
Unpacked files
SH256 hash:
95e264cbd37cf84a578fae84d207fdd550db3323527593b9f12febe688b6b72e
MD5 hash:
6a2178802bff3c383ea1bf7cf87093f1
SHA1 hash:
f9b0c4ab0eee0cde59f21f0b3fdd11ede7fd0ac9
Detections:
FormBook
Create hunting rule
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_w0
Create hunting rule
Formbook
Create hunting rule
Link:
https://www.unpac.me/results/cf55faf2-1944-465f-9889-f0ff7b9d4258/
Parent samples :
e1153fa8e128ce45bc1fd82c073aa9724653ae65a621f7accf41a7b4ea542906
94f29a8158717b4c268b41e8eb72bc7301f2d4578dc41a06deabe79ff8e767dd
d281b712bf3960b42fc0e9d0997fbbc545f1113f1097dc87b91712bb5ecd4df5
ab178721c79dcba37cf1979de6f85c6b3531371b8492749970d91773a505949a
4450f87d1d930e77af10b8eeea00a2f2c2421f1035e42e98fa072fecb5735e00
SH256 hash:
8f3e8fb00b864b774ba1ff591b4d2f29d04cf4fea45e179f39309b984a92093c
MD5 hash:
d0223abc16917fd6ab9a529f597cc431
SHA1 hash:
6de268dcad66b83e126c39b7cb8aaec020d64dcb
Link:
https://www.unpac.me/results/cf55faf2-1944-465f-9889-f0ff7b9d4258/
SH256 hash:
ca5a1a40adecac0992ec9c499662f80cc6af76f2d5c7d53d3a142be80657f16d
MD5 hash:
5e8efd0abac0bf86fdb87a31bd01a495
SHA1 hash:
3bdf581595d7b2722e4105be322dd662e582f634
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/cf55faf2-1944-465f-9889-f0ff7b9d4258/
SH256 hash:
ab178721c79dcba37cf1979de6f85c6b3531371b8492749970d91773a505949a
MD5 hash:
ef494e2d8600338e6c4abb514a6f2fdb
SHA1 hash:
8864364fb585590e5cddc1356d44ce1ba731dbff
Link:
https://www.unpac.me/results/cf55faf2-1944-465f-9889-f0ff7b9d4258/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ab178721c79d/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/ab178721c79dcba37cf1979de6f85c6b3531371b8492749970d91773a505949a

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:NET
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
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 ab178721c79dcba37cf1979de6f85c6b3531371b8492749970d91773a505949a

(this sample)

  
Delivery method
Distributed via e-mail attachment

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

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