MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a573fc7a8d65f4c37fcb879e55884b17a1e5a6f20258a9f50d779fe6362d5099. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a573fc7a8d65f4c37fcb879e55884b17a1e5a6f20258a9f50d779fe6362d5099
SHA3-384 hash: 88a7368fce1754729e14380e2696cafc069616a8e3d6a0dade5f941d8d7cb81b03ddb0683ac4fbc4ad8bf537c40811c3
SHA1 hash: 2420e7d7e35a7eef3b4eef107111a48c718cf022
MD5 hash: 54b630f4aeedd49333c13628a99911ed
humanhash: mobile-connecticut-black-speaker
File name:Payment_copy_0394884.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:668'160 bytes
First seen:2022-05-30 12:48:21 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:hB5w6IqCVx9aLnelCmivgtfhA7yM5WxxbtsF9wv:PGk/ZjvMSB5WxxJs
Threatray 18'556 similar samples on MalwareBazaar
TLSH T115E4012F3B59DF51C06946B5C0D7867407F2618BA632EA522EDA03C61E463F4CDCABC6
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 :
312
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Payment_copy_0394884.exe
Verdict:
Malicious activity
Analysis date:
2022-05-30 12:53:29 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/a29393fb-f55b-450e-a9be-2399e69aab14

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/275487/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control.exe obfuscated packed replace.exe
Link:
https://www.filescan.io/uploads/6294bd5365e33815993dfc4b/reports/da8bdf74-a572-4c47-9653-853bbb44acce/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/72610baa-232f-4dc9-8004-8b0fa0f1124e
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1003694
Signature
.NET source code contains method to dynamically call methods (often used by packers)
Antivirus detection for URL or domain
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 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
Performs DNS queries to domains with low reputation
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
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 636192 Sample: Payment_copy_0394884.exe Startdate: 30/05/2022 Architecture: WINDOWS Score: 100 31 www.shengxiang3.com 2->31 35 Found malware configuration 2->35 37 Malicious sample detected (through community Yara rule) 2->37 39 Antivirus detection for URL or domain 2->39 41 9 other signatures 2->41 11 Payment_copy_0394884.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\...\Payment_copy_0394884.exe.log, ASCII 11->29 dropped 55 Tries to detect virtualization through RDTSC time measurements 11->55 15 Payment_copy_0394884.exe 11->15         started        signatures6 process7 signatures8 57 Modifies the context of a thread in another process (thread injection) 15->57 59 Maps a DLL or memory area into another process 15->59 61 Sample uses process hollowing technique 15->61 63 Queues an APC in another process (thread injection) 15->63 18 explorer.exe 15->18 injected process9 dnsIp10 33 www.solekrymie.xyz 109.123.121.243, 49776, 80 UK2NET-ASGB United Kingdom 18->33 43 System process connects to network (likely due to code injection or exploit) 18->43 45 Performs DNS queries to domains with low reputation 18->45 22 explorer.exe 18->22         started        signatures11 process12 signatures13 47 Self deletion via cmd or bat file 22->47 49 Modifies the context of a thread in another process (thread injection) 22->49 51 Maps a DLL or memory area into another process 22->51 53 Tries to detect virtualization through RDTSC time measurements 22->53 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a573fc7a8d65f4c37fcb879e55884b17a1e5a6f20258a9f50d779fe6362d5099/
Threat name:
ByteCode-MSIL.Trojan.Swotter
Create hunting rule
Status:
Malicious
First seen:
2022-05-30 08:44:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=uvz7y6unmx2mg76lq6pflcclc6q6ljxsajmkt5ino6p6mnrnkcmq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
12a763026430ddbe2a80d01377895f40db30eed6b64baef137cd951356a139c8
Formbook
3bd982f82a1b2f074b02fe7cc7413f1e083f19108ae2612b2b5a741a9858f7f4
Formbook
637975012cf4c551299419a4b3e52eae50743971a0ead8931d87a5a88072cf07
Formbook
781af9138385148f0aa07b66f85f00f9683848f90967c2585a53fc1486e5d065
Formbook
95bf56d45ed29648838e732b3ab2ba8f968b53d9b9fd7f6155498c958f09bf14
Formbook
b0778020101d914d0b75ae36eafca80f80f985a048d08961e10eec0e1196908d
Formbook
+ 18'546 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:h86y rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220530-p2b1hscdaq/
Behaviour
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
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
5259e74a82cbe4fd7f34734d5d1358067632bacb28cce3142870799039d36b38
MD5 hash:
7de7ff355e60c01df36f295645509113
SHA1 hash:
7dbe04795e2c30c609fc41280f0bf1735fd4ddd5
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/25f6f26b-1bb8-43fd-8650-229eceff89ad/
Parent samples :
dd60e55c229563801df128c29f52b21bc1cf22625c8b4b9442b2d7839c9175a4
a573fc7a8d65f4c37fcb879e55884b17a1e5a6f20258a9f50d779fe6362d5099
d080a745b7938d247a21fe80650dd1e392eb37326882536a111a16acb6b49082
SH256 hash:
840be1d54ac08fdec3556b93ff92af7e2f6d7c909a7606c59c5ac777670e2742
MD5 hash:
cc4a8210cb3e6146e928003944c15fbf
SHA1 hash:
e218e2b2a8c8e204c19d6cc6aec987b87544d566
Link:
https://www.unpac.me/results/25f6f26b-1bb8-43fd-8650-229eceff89ad/
SH256 hash:
d2264a64cb1ec723772e106518b0058208effc278ee075d3ea021aff29d302ab
MD5 hash:
29ead2a763374351e9e30d830eca4e8b
SHA1 hash:
acd64593e484de934b23732167dcc5c31ddb9368
Link:
https://www.unpac.me/results/25f6f26b-1bb8-43fd-8650-229eceff89ad/
SH256 hash:
0e28f84180146dea3cab84a94da6c947d3fc333cfa65995c218cabc75a785ae4
MD5 hash:
080557806e453f887fb4f143748695f6
SHA1 hash:
aa421a462721bcd1876f9d83adc464286da3b3e1
Link:
https://www.unpac.me/results/25f6f26b-1bb8-43fd-8650-229eceff89ad/
SH256 hash:
c18dcc96d26545de79d8af690ad07a9ff4e04a310302f525ffc40307a31a7d07
MD5 hash:
e3dd779139e0b087ddc4dcaee3765324
SHA1 hash:
8bc6e35995ba6c4d06e05d3f91a1be532a72d94b
Link:
https://www.unpac.me/results/25f6f26b-1bb8-43fd-8650-229eceff89ad/
SH256 hash:
a573fc7a8d65f4c37fcb879e55884b17a1e5a6f20258a9f50d779fe6362d5099
MD5 hash:
54b630f4aeedd49333c13628a99911ed
SHA1 hash:
2420e7d7e35a7eef3b4eef107111a48c718cf022
Link:
https://www.unpac.me/results/25f6f26b-1bb8-43fd-8650-229eceff89ad/
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/a573fc7a8d65f4c37fcb879e55884b17a1e5a6f20258a9f50d779fe6362d5099

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 a573fc7a8d65f4c37fcb879e55884b17a1e5a6f20258a9f50d779fe6362d5099

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/275487/

Comments