MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8ff731c600d84080b06bcb467db3c3fb991e3d843908b855f2406b161515da71. 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 3 File information Comments
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SHA256 hash: 8ff731c600d84080b06bcb467db3c3fb991e3d843908b855f2406b161515da71
SHA3-384 hash: bdb3b8b3a4528958c3ff1505a4e0a7ce082885040c8b6e9afe6a472a9efd9232b5752999a3f3c2c2cce4bedbf6e7ba81
SHA1 hash: 46762fda9fd33c9758e8c68bc46b710200271df9
MD5 hash: db156e6155b5ab21de3182befa9ead9f
humanhash: nebraska-nuts-twelve-indigo
File name:db156e6155b5ab21de3182befa9ead9f.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:745'472 bytes
First seen:2021-11-22 13:38:29 UTC
Last seen:2021-11-22 15:49:08 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'747 x AgentTesla, 19'642 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 12288:u8OF+HRZjhb9WXyONUKym21AuDHRC8JuOh0t:9QxehrJuOh
Threatray 11'443 similar samples on MalwareBazaar
TLSH T185F46B30329573A6CC765BB40C6461C42737B6493D08D76DACC922DE6D62F6B8B237A3
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
121
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
db156e6155b5ab21de3182befa9ead9f.exe
Verdict:
Suspicious activity
Analysis date:
2021-11-22 13:57:02 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/fd4ea41f-f434-4b09-b24f-c7598f7c0139

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Gathering data
Detection(s):
SecuriteInfo.com.BackDoor.SpyBotNET.25.21758.8142.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Unauthorized injection to a recently created process
Creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/619b9d7694a88037d2fe6c7a/reports/c5413bba-a56b-4ac9-86b1-2facf3725848/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/132f1d30-db73-4a68-94f9-c861ad47b737
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/893862
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
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 dnsIp2 2 Behavior Graph ID: 526345 Sample: DpFMpM7AFI.exe Startdate: 22/11/2021 Architecture: WINDOWS Score: 100 32 www.metamonster.site 2->32 42 Found malware configuration 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 Multi AV Scanner detection for submitted file 2->46 48 4 other signatures 2->48 10 DpFMpM7AFI.exe 3 2->10         started        14 explorer.exe 10 2->14         started        signatures3 process4 file5 30 C:\Users\user\AppData\...\DpFMpM7AFI.exe.log, ASCII 10->30 dropped 58 Tries to detect virtualization through RDTSC time measurements 10->58 16 DpFMpM7AFI.exe 10->16         started        signatures6 process7 signatures8 34 Modifies the context of a thread in another process (thread injection) 16->34 36 Maps a DLL or memory area into another process 16->36 38 Sample uses process hollowing technique 16->38 40 Queues an APC in another process (thread injection) 16->40 19 cmd.exe 16->19         started        22 explorer.exe 16->22 injected process9 signatures10 50 Self deletion via cmd delete 19->50 52 Modifies the context of a thread in another process (thread injection) 19->52 54 Maps a DLL or memory area into another process 19->54 56 Tries to detect virtualization through RDTSC time measurements 19->56 24 cmd.exe 1 19->24         started        26 explorer.exe 2 158 19->26         started        process11 process12 28 conhost.exe 24->28         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8ff731c600d84080b06bcb467db3c3fb991e3d843908b855f2406b161515da71/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-11-22 10:23:27 UTC
File Type:
PE (.Net Exe)
Extracted files:
32
AV detection:
19 of 28 (67.86%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
241582074a493ed1b28fa87dcab270e4057eac6fbe0171e14dce9f99c601f2b3
Formbook
3204a354d2ccb2058144116ede288693583a38b0c84b41903c2ceaebd19e9348
Formbook
4253f88eb5e931720c16e56f49babfbf8db93eaa8b6f85146cc2d690aee2b9d2
Formbook
5824f8d2a1ca44f7fb1aa815930628448e183d6f9344a3f289c8a56953a52afb
Formbook
6cbe56928a6ebd559194c8ca4537521d2485a728598d679d2d70de7052cb1501
Formbook
839377fd0aa17abb875ab6d090738390fc33219fa7b60b753f17e642165347a0
Formbook
a5445168b24e211aa5df098ed4be983c8d57f935610638e466bdc6c98065effb
Formbook
dd6dba0589aac8951a4ddc6bcbbbf76f478b1df4ef93e6f1df0bd789f560d32a
Formbook
f1767a23201e1d5d234ead79f84de4a76f789aaa83f920b8cf4e0783f125d17c
Formbook
+ 11'433 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:e5dn rat spyware stealer trojan
Link:
https://tria.ge/reports/211122-qxyt6aaeh9/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.elpasomedicare.com/e5dn/
Unpacked files
SH256 hash:
69fd1d71d1827a715d37a6f1e4265551de76ff28b09722c8ac8315bfcc64a590
MD5 hash:
09463763a91ffbc113fd0c955dd3a00c
SHA1 hash:
705c345dc5ce34eff63c11937cc93f2876aa9f99
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/a4d9efa4-c43d-43af-8e60-4d13196dfbf4/
Parent samples :
dd6dba0589aac8951a4ddc6bcbbbf76f478b1df4ef93e6f1df0bd789f560d32a
839377fd0aa17abb875ab6d090738390fc33219fa7b60b753f17e642165347a0
a5445168b24e211aa5df098ed4be983c8d57f935610638e466bdc6c98065effb
8ff731c600d84080b06bcb467db3c3fb991e3d843908b855f2406b161515da71
SH256 hash:
05d918ec35eb1cfc5766cbeff95db7a12b49df3c1972dc6277b652892b7089ba
MD5 hash:
c74b35418f6ea151a19d0cf167518401
SHA1 hash:
8b3d28219523ccdae576edc77631954a3cbe57f2
Link:
https://www.unpac.me/results/a4d9efa4-c43d-43af-8e60-4d13196dfbf4/
SH256 hash:
f30ca642597c059f9dbcc6cfea27687245fbcaf5456be0b7a4528d946f3a0a05
MD5 hash:
0f6349011cf5446131faf0cadbace87b
SHA1 hash:
0cd48b5cb5a0ca095043c333c9002ba5273e92e8
Link:
https://www.unpac.me/results/a4d9efa4-c43d-43af-8e60-4d13196dfbf4/
SH256 hash:
8ff731c600d84080b06bcb467db3c3fb991e3d843908b855f2406b161515da71
MD5 hash:
db156e6155b5ab21de3182befa9ead9f
SHA1 hash:
46762fda9fd33c9758e8c68bc46b710200271df9
Link:
https://www.unpac.me/results/a4d9efa4-c43d-43af-8e60-4d13196dfbf4/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/8ff731c600d84080b06bcb467db3c3fb991e3d843908b855f2406b161515da71

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: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 8ff731c600d84080b06bcb467db3c3fb991e3d843908b855f2406b161515da71

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1791813/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/208190/

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