MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 73cbecbb1b1ea2460d93f020a4fd71044e40c6721f48693da10855544dc8da20. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments
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SHA256 hash: 73cbecbb1b1ea2460d93f020a4fd71044e40c6721f48693da10855544dc8da20
SHA3-384 hash: af03285fcc9a61012be1d5b5059d1527bd56dd137e109a38bcfd86d211c971a07df8f32631f431e486e24128a6a37b29
SHA1 hash: a04ebd8c4cb2120d960ce712a3be9741fa1250f7
MD5 hash: 56ec413a811a0c34a34edf1322a954d0
humanhash: autumn-illinois-river-sweet
File name:Bestellung.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:983'040 bytes
First seen:2022-03-15 14:07:41 UTC
Last seen:2022-03-16 07:33:46 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 24576:qRzjwOd0p5Z29kzcn8+rhOLzklyhdC5c4yo:2/f+pakYwMghdCa
Threatray 15'136 similar samples on MalwareBazaar
TLSH T1D625DFAC328579DEC663CE76CA642C14FA30B07BA707D2079117059D9A5DBEBDE102E3
Reporter TeamDreier
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
162
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/250842/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.AENP.610.8736.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Creating a file
Searching for synchronization primitives
Launching the process to change network settings
Launching cmd.exe command interpreter
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/62309dcfb94fb38cb4853e5f/reports/ab8cb928-0ea6-4b60-86fb-0a372efa6193/overview
Result
Verdict:
UNKNOWN
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/51698b2f-934e-48cc-b59b-846c4e5b22cf
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/957459
Signature
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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)
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
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Suspicious Add Scheduled Task From User AppData Temp
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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: 589936 Sample: Bestellung.exe Startdate: 15/03/2022 Architecture: WINDOWS Score: 100 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 Antivirus detection for URL or domain 2->45 47 11 other signatures 2->47 9 Bestellung.exe 7 2->9         started        process3 file4 33 C:\Users\user\AppData\...\fSEjEdrlwc.exe, PE32 9->33 dropped 35 C:\Users\...\fSEjEdrlwc.exe:Zone.Identifier, ASCII 9->35 dropped 37 C:\Users\user\AppData\Local\...\tmp269D.tmp, XML 9->37 dropped 39 C:\Users\user\AppData\...\Bestellung.exe.log, ASCII 9->39 dropped 55 Uses schtasks.exe or at.exe to add and modify task schedules 9->55 57 Adds a directory exclusion to Windows Defender 9->57 13 RegSvcs.exe 9->13         started        16 powershell.exe 25 9->16         started        18 schtasks.exe 1 9->18         started        signatures5 process6 signatures7 59 Modifies the context of a thread in another process (thread injection) 13->59 61 Maps a DLL or memory area into another process 13->61 63 Sample uses process hollowing technique 13->63 65 2 other signatures 13->65 20 wscript.exe 13->20         started        23 explorer.exe 13->23 injected 25 conhost.exe 16->25         started        27 conhost.exe 18->27         started        process8 signatures9 49 Modifies the context of a thread in another process (thread injection) 20->49 51 Maps a DLL or memory area into another process 20->51 53 Tries to detect virtualization through RDTSC time measurements 20->53 29 cmd.exe 1 20->29         started        process10 process11 31 conhost.exe 29->31         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/73cbecbb1b1ea2460d93f020a4fd71044e40c6721f48693da10855544dc8da20/
Threat name:
ByteCode-MSIL.Trojan.FormBook
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Status:
Malicious
First seen:
2022-03-15 14:26:22 UTC
AV detection:
20 of 27 (74.07%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=opf6zoy3d2remdmt6aqkj7lrarhebrtsd5egspnbbbkvitoi3iqa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
60f3b28c265ee86ff2fda42a3147348bf53971060d9b97e2cd631a32f80ee0cd
Formbook
6e4323460316f29ecdaa2b49fbe733c11ea3a040cf7336e177ac9345ddac21c1
Formbook
79ff3adbc3c3d3bded849b527e4e0d8b0d0b8fb89479931eb18871ea3c74e1cb
Formbook
832160e3e8d0fa8b10ae46a52268d0f2aa5a29d2e084c255babe7423c696db53
Formbook
880d9d46e74d9f2a0c870d561b9f310478e507376a2b0091983c81800ac92906
Formbook
8a7a6b61fbbf494613436cfed3e686c9504f6d36489d67dccb1e050bc262c93a
Formbook
9ea2af324c0b6ab6493a82c59ba4f2aa56d94c5bc830f0e2b5a8288dc63747d4
Formbook
9fa1cc5263270e7856695780225b4084962371dac2f5d7a921d782dc862f0d05
Formbook
c54011773bed423243ea28917f4ee89a825cf2886dbb4b0939bac3e955284c0b
Formbook
ddf2076a3a130fca2fc2d48f41e77adc2538ca0cc9327d2bee0d5a8bdbbe5c8f
Formbook
+ 15'126 additional samples on MalwareBazaar
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:id02 rat spyware stealer trojan
Link:
https://tria.ge/reports/220315-rflzpscde9/
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Checks computer location settings
Formbook Payload
Formbook
Unpacked files
SH256 hash:
b6cb7d8bc16dbcb31f16562ecefaf762917486676ccac74f5c411fe3ac8f65b5
MD5 hash:
50cda660807a6b1ae33f5c46df8f9ffb
SHA1 hash:
10fabe79b4caa6e226dccde35a615b580faa7367
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/b2d60570-7b40-4f07-9113-3c0637f90b13/
Parent samples :
73cbecbb1b1ea2460d93f020a4fd71044e40c6721f48693da10855544dc8da20
392ccbb90587006cb88f15297f40b3e17ef83b37f8171d435d519600065e9d55
2e22a70a6b87ce15fa230bdb14fa4ba0ab2c22fd2a075e53b4f0163bcabb7dec
06ad8a0224b740181f8d7e803842d5c44b74fa4bb41a01d31c9b2839d50f82cd
SH256 hash:
4ffb59b76867dc3ee5df8b1476a82043c8bbfa9679aa90a2e4b937292b3722b8
MD5 hash:
fc6d91ff314356715f5c76ba61240c9f
SHA1 hash:
aac8291f9af1c2e18b8302550ee4d1c96120949a
Link:
https://www.unpac.me/results/b2d60570-7b40-4f07-9113-3c0637f90b13/
SH256 hash:
26f39c45141b71da566321cb222b0d044ee4cc3faac6015bad458b5ebfb0a023
MD5 hash:
bd81edc7b03b8262435dfefb91b8fed4
SHA1 hash:
a8c0c07f9365f5b69d926108d392709f343c45bc
Link:
https://www.unpac.me/results/b2d60570-7b40-4f07-9113-3c0637f90b13/
SH256 hash:
5ef6159772be000ad9d9d0a826b0f98630eaa8400de8eaf85c3ae1d24ed8b07f
MD5 hash:
955b406b54edc35b800489e322650b08
SHA1 hash:
5699bc433df29e3fab622367d9f26263c844b046
Link:
https://www.unpac.me/results/b2d60570-7b40-4f07-9113-3c0637f90b13/
SH256 hash:
73cbecbb1b1ea2460d93f020a4fd71044e40c6721f48693da10855544dc8da20
MD5 hash:
56ec413a811a0c34a34edf1322a954d0
SHA1 hash:
a04ebd8c4cb2120d960ce712a3be9741fa1250f7
Link:
https://www.unpac.me/results/b2d60570-7b40-4f07-9113-3c0637f90b13/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/73cbecbb1b1e/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/73cbecbb1b1ea2460d93f020a4fd71044e40c6721f48693da10855544dc8da20

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
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 73cbecbb1b1ea2460d93f020a4fd71044e40c6721f48693da10855544dc8da20

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/250842/

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