MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c36fa12719f133f394b113938584b1d693d4741df4e40d34958dcee239ecd153. 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: 10


Intelligence 10 IOCs YARA 2 File information Comments 1
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SHA256 hash: c36fa12719f133f394b113938584b1d693d4741df4e40d34958dcee239ecd153
SHA3-384 hash: 29745041bc6c34dba881df1870293fce927365d13ffb0dbf88a255bbcc1eb17c4ac67e0db1be8c9a6179dc6bfd4bd2fe
SHA1 hash: 23db92ecb94c2d37d0f02a5109a0cce8caf87ab1
MD5 hash: 4fce8340b8819f756b9e3afedf5917fd
humanhash: alanine-seventeen-april-india
File name:4fce8340b8819f756b9e3afedf5917fd
Download: download sample
Signature Formbook
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File size:839'168 bytes
First seen:2021-07-14 16:48:11 UTC
Last seen:2021-07-14 19:39:30 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:zwMv4TArNls9XOd4+QCIF5opyAOGDgZHJJNDO3z7fz93WGXg1SK1ZJdqMRdkjejH:zwx6yAOGKHJDOD7fzdWGSQKRcVvDG
Threatray 6'518 similar samples on MalwareBazaar
TLSH T141058C2C23FE9619F237FF319FA0E6449FA676B59215DD0D2DC4024A4821D82EEA7D31
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
154
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
4fce8340b8819f756b9e3afedf5917fd
Verdict:
Suspicious activity
Analysis date:
2021-07-14 16:49:09 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/efcfc88e-4886-4023-810f-f859bc460500

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/171776/
Detection(s):
SecuriteInfo.com.Trojan.Win32.Save.a.27325.8833.UNOFFICIAL
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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/685a3a62-8fab-4e12-be54-a02aa72adee2
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/816422
Signature
.NET source code contains very large strings
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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 ipconfig to lookup or modify the Windows network settings
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 448838 Sample: aJr4tJx7T4 Startdate: 14/07/2021 Architecture: WINDOWS Score: 100 31 www.blackbettyxt.com 2->31 33 blackbettyxt.com 2->33 41 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->41 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 8 other signatures 2->47 11 aJr4tJx7T4.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\aJr4tJx7T4.exe.log, ASCII 11->29 dropped 59 Tries to detect virtualization through RDTSC time measurements 11->59 61 Injects a PE file into a foreign processes 11->61 15 aJr4tJx7T4.exe 11->15         started        signatures6 process7 signatures8 63 Modifies the context of a thread in another process (thread injection) 15->63 65 Maps a DLL or memory area into another process 15->65 67 Sample uses process hollowing technique 15->67 69 Queues an APC in another process (thread injection) 15->69 18 explorer.exe 15->18 injected process9 dnsIp10 35 www.zjjly88.com 156.234.250.218, 49732, 80 HENGDA-HKHENGDANETWORKLIMITEDHK Seychelles 18->35 37 www.nivafitness.com 18->37 39 2 other IPs or domains 18->39 49 System process connects to network (likely due to code injection or exploit) 18->49 51 Uses ipconfig to lookup or modify the Windows network settings 18->51 22 ipconfig.exe 18->22         started        signatures11 process12 signatures13 53 Modifies the context of a thread in another process (thread injection) 22->53 55 Maps a DLL or memory area into another process 22->55 57 Tries to detect virtualization through RDTSC time measurements 22->57 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/c36fa12719f133f394b113938584b1d693d4741df4e40d34958dcee239ecd153/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2021-07-14 16:02:51 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
17 of 29 (58.62%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
14ebcbc69653d3257eb42c91734bcf2a1ca5dff12c31c06cf955279ea4af5bfd
Formbook
23022e88812cff7f0b615fd48b58f0d971f0559d0275380f87eaa3bf195e7e22
Formbook
25839ba93d33dda960d99110ae98f42e89056233264f11d18b65727a79e4bd62
Formbook
3b850a085ce072cb545fd9422cc8d9eaae19329e27a032edda8bc676d392b8ff
Formbook
744400d590042d779a25401879f9906b979e32bba3fac355a0ff2d5a00f4fcfc
Formbook
c2336a135878814b7b9b82146879a4ee8910e0a7e540415cb3716e1f62c1ea41
Formbook
d38491c76eda29b3135557f28eb4e2fa15ee55d54c15452f9221e82a5b489c5e
Formbook
d933001638f194baed0596efe53af5dc534ad6f5177aa8aacf2c25188fbdd2f4
Formbook
e2c0e25768a1b24398536bf921e5e86f9137ecc08e9eba2101fd5213b3ec0fcf
Formbook
e6a0f307c9bec6b31f0002726d75ae3d5ced8ffe3b6fce869fe12b8061f642d8
Formbook
+ 6'508 additional samples on MalwareBazaar
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/210714-xzhwmtyckj/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.lifeafterbobby.com/vn3b/
Unpacked files
SH256 hash:
3350c0b7d75f7b2856fde6fe546579027f5b20a6dd12fc04a8df047162abcee4
MD5 hash:
6f67a87376019d461ab0953769ce187b
SHA1 hash:
f2ab719f7f8e81f47f859b0e282803f10d3fd341
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/928c82b9-f728-400e-babe-413df15d5c9e/
Parent samples :
e6a0f307c9bec6b31f0002726d75ae3d5ced8ffe3b6fce869fe12b8061f642d8
23022e88812cff7f0b615fd48b58f0d971f0559d0275380f87eaa3bf195e7e22
e2c0e25768a1b24398536bf921e5e86f9137ecc08e9eba2101fd5213b3ec0fcf
d933001638f194baed0596efe53af5dc534ad6f5177aa8aacf2c25188fbdd2f4
d38491c76eda29b3135557f28eb4e2fa15ee55d54c15452f9221e82a5b489c5e
14ebcbc69653d3257eb42c91734bcf2a1ca5dff12c31c06cf955279ea4af5bfd
c36fa12719f133f394b113938584b1d693d4741df4e40d34958dcee239ecd153
SH256 hash:
5f5257e30cfc2caab058013ffc60f90fb8a5d780a14834e1371054290b7658e4
MD5 hash:
b0e14c3526d6623ae9b7b5f5e0efde76
SHA1 hash:
f7d127bff2dfb1100ebd55fdd12dfb7a2b382fdc
Link:
https://www.unpac.me/results/928c82b9-f728-400e-babe-413df15d5c9e/
SH256 hash:
8a94c7b05a1445eb9c60f2c21e5d27e67f133b8bff6d7158e6cec10eba476cbc
MD5 hash:
09b35da5d32f98f6cd2f2dd86470171c
SHA1 hash:
c6550a7c7cb8238cca59df298919745afb58c4d4
Link:
https://www.unpac.me/results/928c82b9-f728-400e-babe-413df15d5c9e/
SH256 hash:
52798a3a4cfa981a164fa002e624848dea5bd837b13b6510b7225481bbe1dbd5
MD5 hash:
73c87b2e81743dd6ea655944ca2f2d11
SHA1 hash:
8aa7e2f92643a52d2d4c757622f790f03ef00bce
Link:
https://www.unpac.me/results/928c82b9-f728-400e-babe-413df15d5c9e/
SH256 hash:
c36fa12719f133f394b113938584b1d693d4741df4e40d34958dcee239ecd153
MD5 hash:
4fce8340b8819f756b9e3afedf5917fd
SHA1 hash:
23db92ecb94c2d37d0f02a5109a0cce8caf87ab1
Link:
https://www.unpac.me/results/928c82b9-f728-400e-babe-413df15d5c9e/
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/c36fa12719f133f394b113938584b1d693d4741df4e40d34958dcee239ecd153

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
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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 c36fa12719f133f394b113938584b1d693d4741df4e40d34958dcee239ecd153

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1454395/
Cape
Cape
https://www.capesandbox.com/analysis/171776/

Comments


Avatar
zbet commented on 2021-07-14 16:48:12 UTC

url : hxxp://136.144.41.14/so/va.exe