MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 66654f002664e3986cbcb9a8fe7822c59ae2bdd48d9201d90f5f00773a361f99. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments
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SHA256 hash: 66654f002664e3986cbcb9a8fe7822c59ae2bdd48d9201d90f5f00773a361f99
SHA3-384 hash: 1bf5532c5c7c01c7278ad0d9f07bfeef9de9c9a4b85cbdcee2435b94947565df7ee6f15d2f7e4dcb2c5292be5d1a7a60
SHA1 hash: 556cd33bb19d68e7650cf608ae51b76ede445073
MD5 hash: 36a5347ae3d381d726eb8c979d287ad2
humanhash: lake-nuts-summer-pasta
File name:PURCHASE ORDER 091020-pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:664'064 bytes
First seen:2022-05-30 13:29:27 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'602 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:YsMGe0KfVuApZgyUGHGG2XP7eo9J+PNlDA4vA5xJxuBevckrxgwnxwZr2W9Bd:YsMGKfVuA7gyPJuyoLKU0A5fek1ZxwZd
Threatray 19'003 similar samples on MalwareBazaar
TLSH T179E402693B95CB42C0954578D1D3D07447F2A34FE732E28A7ECA62C75E427A08D8ABCD
TrID 69.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.9% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 00ccf096ccc0d400 (21 x FormBook, 18 x AgentTesla, 11 x SnakeKeylogger)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
314
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
PURCHASE ORDER 091020-pdf.exe
Verdict:
Malicious activity
Analysis date:
2022-05-30 13:32:30 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/a0c0a7e7-9c86-432a-8067-0ec867620c26

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/275500/
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.15856.25604.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
coinminer control.exe obfuscated packed replace.exe
Link:
https://www.filescan.io/uploads/6294c6f3945ebb7eb184100b/reports/9140c1c9-26b1-467f-a290-ebde9281d77e/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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a00bf0f6-c8cb-4e21-be2f-60cd8701e439
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1003719
Signature
.NET source code contains method to dynamically call methods (often used by packers)
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
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
Self deletion via cmd or bat file
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
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: 636215 Sample: PURCHASE ORDER 091020-pdf.exe Startdate: 30/05/2022 Architecture: WINDOWS Score: 100 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 Multi AV Scanner detection for dropped file 2->50 52 13 other signatures 2->52 10 PURCHASE ORDER 091020-pdf.exe 7 2->10         started        process3 file4 36 C:\Users\user\AppData\Roaming\gBZWlOoI.exe, PE32 10->36 dropped 38 C:\Users\...\gBZWlOoI.exe:Zone.Identifier, ASCII 10->38 dropped 40 C:\Users\user\AppData\Local\...\tmp219F.tmp, XML 10->40 dropped 42 C:\...\PURCHASE ORDER 091020-pdf.exe.log, ASCII 10->42 dropped 56 Adds a directory exclusion to Windows Defender 10->56 14 PURCHASE ORDER 091020-pdf.exe 10->14         started        17 powershell.exe 25 10->17         started        19 schtasks.exe 1 10->19         started        signatures5 process6 signatures7 66 Modifies the context of a thread in another process (thread injection) 14->66 68 Maps a DLL or memory area into another process 14->68 70 Sample uses process hollowing technique 14->70 72 Queues an APC in another process (thread injection) 14->72 21 explorer.exe 14->21 injected 25 conhost.exe 17->25         started        27 conhost.exe 19->27         started        process8 dnsIp9 44 www.techtequil.com 21->44 54 System process connects to network (likely due to code injection or exploit) 21->54 29 svchost.exe 21->29         started        signatures10 process11 signatures12 58 Self deletion via cmd or bat file 29->58 60 Modifies the context of a thread in another process (thread injection) 29->60 62 Maps a DLL or memory area into another process 29->62 64 Tries to detect virtualization through RDTSC time measurements 29->64 32 cmd.exe 1 29->32         started        process13 process14 34 conhost.exe 32->34         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/66654f002664e3986cbcb9a8fe7822c59ae2bdd48d9201d90f5f00773a361f99/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-05-30 11:44:38 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
23 of 26 (88.46%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=mzsu6abgmtrzq3f4xgup46bcywnofpourwjadwipl4ahoorwd6mq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
19a9ec9da618f09710fd8e6e1daec72377e05e78bd7469f33e203a9529d712fd
Formbook
44ba196d26ded5256953332dbcf8f1e4eef73522687836158ec13065917bb36c
Formbook
5938c544d44a8b9714eb80c498d7cbb327b55d8176541118394d3357727f3d28
Formbook
669281f9aa118bef43b360b346e7954d6e1e9f04da0c8bff68387a2730c8e928
Formbook
95bf56d45ed29648838e732b3ab2ba8f968b53d9b9fd7f6155498c958f09bf14
Formbook
b0778020101d914d0b75ae36eafca80f80f985a048d08961e10eec0e1196908d
Formbook
b4959f6906cb2816453fd47b371ff016bd899bc9a4e4161e06b80ee64a9f7fc5
Formbook
b5e186f373c99f75db50a9b6689f835d4c141c6f369fa63d58da21b5fa13e90d
Formbook
c01d1ca58e3801fd34ad3ce6385454348ab04c58a7ac8522bb214960e6642d0f
Formbook
+ 18'993 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:ae25 rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220530-qrtcgscden/
Behaviour
Creates scheduled task(s)
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
Deletes itself
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
930ad9d2cb793005580bfce82af3f49650d738e691a6a9aef537d8d3d47516a1
MD5 hash:
d1c4c7f310fb64891a1cdfedd62eeed1
SHA1 hash:
9b89d545bb9b25dd43fba3eb0b695ce186c29271
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/cb779961-e7ba-4e51-a543-6ee8e6b2c853/
Parent samples :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 hash:
840be1d54ac08fdec3556b93ff92af7e2f6d7c909a7606c59c5ac777670e2742
MD5 hash:
cc4a8210cb3e6146e928003944c15fbf
SHA1 hash:
e218e2b2a8c8e204c19d6cc6aec987b87544d566
Link:
https://www.unpac.me/results/cb779961-e7ba-4e51-a543-6ee8e6b2c853/
SH256 hash:
8ac8687df097449362ffa7586f73833f2a99f45cade71c03de9713f6e55edb20
MD5 hash:
795d622f5ea047da05632da5449d89f4
SHA1 hash:
72ccfa0f1328830b05dfaed50a1c2772ccdc0ba0
Link:
https://www.unpac.me/results/cb779961-e7ba-4e51-a543-6ee8e6b2c853/
SH256 hash:
cf8fc4ec1b0112cdd185eb77d344933297f1df6fdac68fa16428d098f0874636
MD5 hash:
692890435132980aad4a2a623dff5fde
SHA1 hash:
4af079ec6a54c1eff746422f0d31fbbff9de12ec
Link:
https://www.unpac.me/results/cb779961-e7ba-4e51-a543-6ee8e6b2c853/
SH256 hash:
3ae8c69fc3d35cc35ab9a31d6948691e4c8e0e0f11c05699d9bca5450bd4b423
MD5 hash:
121653afcd6212c1a0351d972d5a8222
SHA1 hash:
4521b5561e1b5342b1ff370b4ac611fd6f3b6308
Link:
https://www.unpac.me/results/cb779961-e7ba-4e51-a543-6ee8e6b2c853/
SH256 hash:
66654f002664e3986cbcb9a8fe7822c59ae2bdd48d9201d90f5f00773a361f99
MD5 hash:
36a5347ae3d381d726eb8c979d287ad2
SHA1 hash:
556cd33bb19d68e7650cf608ae51b76ede445073
Link:
https://www.unpac.me/results/cb779961-e7ba-4e51-a543-6ee8e6b2c853/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/66654f002664/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/66654f002664e3986cbcb9a8fe7822c59ae2bdd48d9201d90f5f00773a361f99

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
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 66654f002664e3986cbcb9a8fe7822c59ae2bdd48d9201d90f5f00773a361f99

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/275500/

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