MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 81979c2d4b62d20150a4d25f3e61db0e15525fa1f646d8a951bb45e68caca574. 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: 16


Intelligence 16 IOCs YARA 2 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 81979c2d4b62d20150a4d25f3e61db0e15525fa1f646d8a951bb45e68caca574
SHA3-384 hash: 154ac8e128f709164333a99bce5a0fa208a86a1e98aa0ff6d36bb0b8d70ef220a0d29e6f460eecd2e70cae313011bf6b
SHA1 hash: 42fcd8297f7a8cafff149eb1ea56afa2edca9322
MD5 hash: 7c680dcd1c6603c78698c1b380566fd9
humanhash: high-whiskey-leopard-red
File name:7c680dcd1c6603c78698c1b380566fd9
Download: download sample
Signature Formbook
Create hunting rule
File size:814'080 bytes
First seen:2022-08-25 20:03:54 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 24576:aqMgT/0shbH1LT/0shbvAuBhvL6HwkyCL/kq/Sa:lMm5jVA2jcwxCbkQSa
TLSH T16E05F16833E0CC6BC9BB67F688A121410774B5197D22D71F568025FD1C32BDA8A4FBA7
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13101/52/3)
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 zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
381
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Rernedies Pvt LtdMOQ and payment terms.xlsx
Verdict:
Malicious activity
Analysis date:
2022-08-25 19:01:13 UTC
Tags:
encrypted opendir exploit CVE-2017-11882 loader formbook trojan stealer
Link:
https://app.any.run/tasks/d4e1fc5e-7500-47bc-bc45-74d561e6d192

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/301257/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
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/6307d5db393b1c8c47126f89/reports/55b504ee-6023-4f2a-b3cf-fb0f196c62f8/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/03eeba1e-e460-4049-b522-edaeff25e2f7
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1058005
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
Injects a PE file into a foreign processes
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
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
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 690521 Sample: Jy5SyFwqBQ Startdate: 25/08/2022 Architecture: WINDOWS Score: 100 36 Malicious sample detected (through community Yara rule) 2->36 38 Multi AV Scanner detection for dropped file 2->38 40 Multi AV Scanner detection for submitted file 2->40 42 7 other signatures 2->42 8 Jy5SyFwqBQ.exe 7 2->8         started        process3 file4 28 C:\Users\user\AppData\RoamingbehaviorgraphdiWTVsv.exe, PE32 8->28 dropped 30 C:\Users\...behaviorgraphdiWTVsv.exe:Zone.Identifier, ASCII 8->30 dropped 32 C:\Users\user\AppData\Local\...\tmp121B.tmp, XML 8->32 dropped 34 C:\Users\user\AppData\...\Jy5SyFwqBQ.exe.log, ASCII 8->34 dropped 44 Uses schtasks.exe or at.exe to add and modify task schedules 8->44 46 Writes to foreign memory regions 8->46 48 Adds a directory exclusion to Windows Defender 8->48 50 Injects a PE file into a foreign processes 8->50 12 MSBuild.exe 8->12         started        15 powershell.exe 21 8->15         started        17 schtasks.exe 1 8->17         started        signatures5 process6 signatures7 54 Modifies the context of a thread in another process (thread injection) 12->54 56 Maps a DLL or memory area into another process 12->56 58 Sample uses process hollowing technique 12->58 60 2 other signatures 12->60 19 explorer.exe 12->19 injected 21 conhost.exe 15->21         started        23 conhost.exe 17->23         started        process8 process9 25 cmstp.exe 19->25         started        signatures10 52 Tries to detect virtualization through RDTSC time measurements 25->52
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/81979c2d4b62d20150a4d25f3e61db0e15525fa1f646d8a951bb45e68caca574/
Threat name:
ByteCode-MSIL.Spyware.Noon
Create hunting rule
Status:
Malicious
First seen:
2022-08-25 17:47:58 UTC
File Type:
PE (.Net Exe)
Extracted files:
45
AV detection:
16 of 26 (61.54%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=qglzylklmljacufe2jpt4yo3bykvex5b6zdnrkkrxnc6ndfmuv2a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:sg94 rat spyware stealer trojan
Link:
https://tria.ge/reports/220825-ys84bsaccp/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Formbook payload
Formbook
Unpacked files
SH256 hash:
9b4aee132a0228378d66a57fda3a2030952309ef74cf2db724ac916b04d8c034
MD5 hash:
93c6391d23c1aa1ed66fb13f82f2ee31
SHA1 hash:
220098c3047c32b51ae13a5cc1e9beeef3da6e18
Link:
https://www.unpac.me/results/02870738-7490-43a4-b0dc-e1d4f783bdc3/
SH256 hash:
8ac891d9e56190ec8dda636edab1feba2e08ce236dff330f22f01e3cdbc8cb10
MD5 hash:
8a0326a6f1f492c5acd06803e9471ae0
SHA1 hash:
465c3a628e93a62b4185e585eae55d7d4cf5b5f9
Link:
https://www.unpac.me/results/02870738-7490-43a4-b0dc-e1d4f783bdc3/
SH256 hash:
bf81a853bdbf69d1f928ecce4001b45264ad146abaddbcf759d1aaf67dca52c8
MD5 hash:
bbd025ac47a024cba7c184c43278c9e1
SHA1 hash:
8ec0c7d4a0153f884da1484b3fa227249c8006e7
Link:
https://www.unpac.me/results/02870738-7490-43a4-b0dc-e1d4f783bdc3/
SH256 hash:
ceda93fdfce3ad8e4f800d4f2d940d793b68b4b0b254b652bf42e13dbd189ba7
MD5 hash:
786afe844ec1723b635cace747b60efd
SHA1 hash:
fa647a584a7fcad392147a182e3a2435b3ad5bb9
Link:
https://www.unpac.me/results/02870738-7490-43a4-b0dc-e1d4f783bdc3/
SH256 hash:
5f03e4a3ced13c509e1bff7eef4ea91ef8fbf7558e828c31bdff2c525373d171
MD5 hash:
ba381b26613f340f0c2bc07a11811397
SHA1 hash:
df451b830bb7941326e0232b93c97d30b0177d15
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
FormBook
Create hunting rule
Link:
https://www.unpac.me/results/02870738-7490-43a4-b0dc-e1d4f783bdc3/
Parent samples :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 hash:
81979c2d4b62d20150a4d25f3e61db0e15525fa1f646d8a951bb45e68caca574
MD5 hash:
7c680dcd1c6603c78698c1b380566fd9
SHA1 hash:
42fcd8297f7a8cafff149eb1ea56afa2edca9322
Link:
https://www.unpac.me/results/02870738-7490-43a4-b0dc-e1d4f783bdc3/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/81979c2d4b62/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/81979c2d4b62d20150a4d25f3e61db0e15525fa1f646d8a951bb45e68caca574

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.

Web download

Formbook

Executable exe 81979c2d4b62d20150a4d25f3e61db0e15525fa1f646d8a951bb45e68caca574

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2278362/
Cape
Cape
https://www.capesandbox.com/analysis/301257/

Comments


Avatar
zbet commented on 2022-08-25 20:03:58 UTC

url : hxxp://31.3.232.105/rfq/FOmfdfBGh5UQNUF.exe