MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c42f604b88f970d7f871de38dc87f4a2b9d53c8806139cd3e6aa0193110d5e63. 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: 9


Intelligence 9 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c42f604b88f970d7f871de38dc87f4a2b9d53c8806139cd3e6aa0193110d5e63
SHA3-384 hash: 2fe3c8a43d0df4881f4439f6201c296af1643ca7f1b9848c12638fbcf9b8f2420af3c49de741c918338d68b453c1e1be
SHA1 hash: 3486bd3eda5e3dd3443afccb37d6c98b28c23c1a
MD5 hash: 2ab3ca3d9c70b94c0c8844cb09780c7d
humanhash: black-illinois-mango-zulu
File name:2ab3ca3d9c70b94c0c8844cb09780c7d.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:801'280 bytes
First seen:2021-02-15 08:01:48 UTC
Last seen:2021-02-15 10:56:33 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:+00hGT/f7DSvWN1JuigLYVlaf+dhKeVnVBAzzJHyjvrIbCH4w/on98WC:+6zHSvi7AYaf+dk+gzZIr1Hm9J
Threatray 3'830 similar samples on MalwareBazaar
TLSH 0405010237D1AB6AC56C8631517954D853F5AE6B2822DB6F3CC132E8CE7439F27097A3
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
110
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
2ab3ca3d9c70b94c0c8844cb09780c7d.exe
Verdict:
Suspicious activity
Analysis date:
2021-02-15 08:09:05 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/8ca2b378-54af-4623-b43b-c5455a8ced10

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/117153/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.36335584.26019.19386.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Sending a custom TCP request
Creating a window
Unauthorized injection to a recently created process
Sending a UDP request
Creating a file
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.
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/607865
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
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
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 352963 Sample: 9K0LG2U8E0.exe Startdate: 15/02/2021 Architecture: WINDOWS Score: 100 31 www.ripcamarine.com 2->31 39 Found malware configuration 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Multi AV Scanner detection for submitted file 2->43 45 5 other signatures 2->45 11 9K0LG2U8E0.exe 15 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\9K0LG2U8E0.exe.log, ASCII 11->29 dropped 55 Tries to detect virtualization through RDTSC time measurements 11->55 57 Hides that the sample has been downloaded from the Internet (zone.identifier) 11->57 59 Injects a PE file into a foreign processes 11->59 15 9K0LG2U8E0.exe 11->15         started        signatures6 process7 signatures8 61 Modifies the context of a thread in another process (thread injection) 15->61 63 Maps a DLL or memory area into another process 15->63 65 Sample uses process hollowing technique 15->65 67 Queues an APC in another process (thread injection) 15->67 18 explorer.exe 15->18 injected process9 dnsIp10 33 www.gumysle.info 192.64.119.254, 49746, 80 NAMECHEAP-NETUS United States 18->33 35 shops.myshopify.com 23.227.38.74, 49735, 80 CLOUDFLARENETUS Canada 18->35 37 5 other IPs or domains 18->37 47 System process connects to network (likely due to code injection or exploit) 18->47 22 systray.exe 18->22         started        signatures11 process12 signatures13 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:
n/a
Link:
https://mwdb.cert.pl/sample/c42f604b88f970d7f871de38dc87f4a2b9d53c8806139cd3e6aa0193110d5e63/
Threat name:
ByteCode-MSIL.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2021-02-12 14:13:05 UTC
AV detection:
14 of 29 (48.28%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
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Formbook
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b042e4bdfe19df2aa474fd5e2294aecc9a07d447c96466db7a7e20316d885634
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Formbook
d3664113994262962936ebe74d0355986970def0cd0bcdcf088fe102047df9ba
Formbook
+ 3'820 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/210215-25n1yp38na/
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.silkcitytrade.com/oze/
Unpacked files
SH256 hash:
c42f604b88f970d7f871de38dc87f4a2b9d53c8806139cd3e6aa0193110d5e63
MD5 hash:
2ab3ca3d9c70b94c0c8844cb09780c7d
SHA1 hash:
3486bd3eda5e3dd3443afccb37d6c98b28c23c1a
Link:
https://www.unpac.me/results/8e53ecb8-4283-432a-9171-479350d082f3/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/c42f604b88f970d7f871de38dc87f4a2b9d53c8806139cd3e6aa0193110d5e63

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Formbook

Executable exe c42f604b88f970d7f871de38dc87f4a2b9d53c8806139cd3e6aa0193110d5e63

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1010795/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/117153/

Comments