MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 41c87199c61ff26a9f486e5bc9b6bfd010b4c112922bad655599f9a06e2c0ffc. 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: 11


Intelligence 11 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 41c87199c61ff26a9f486e5bc9b6bfd010b4c112922bad655599f9a06e2c0ffc
SHA3-384 hash: 98ebe216e8fdc8afa63b5b32795c9d97835a6e3ea3e51bf9fef3c39ff90666e135546ed46f49adafb2db2dec85af7955
SHA1 hash: 51b17e5976dfde9af09674a098cb9b6b34dfa2e3
MD5 hash: 3162f613d8005c2d491c72237ed9142c
humanhash: cardinal-west-apart-ceiling
File name:3162f613d8005c2d491c72237ed9142c.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:672'256 bytes
First seen:2021-03-01 08:40:01 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 12288:nG4WbdJnC6Hir/x6dX6CA6z2wuipE2ujZmr/7S3/Zi970ezSbW:G4WbdJnC8ir/x6dXbA6z2wuVRjoi3/ZS
Threatray 3'983 similar samples on MalwareBazaar
TLSH 18E4AE3267A85F4AE0BE9B788930A11093F5A613D735EB4DBDE414CE0D16FC582B27D2
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
125
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
3162f613d8005c2d491c72237ed9142c.exe
Verdict:
Suspicious activity
Analysis date:
2021-03-01 08:43:29 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/98b6909b-fa14-4c37-ad18-d8384baa4a26

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/120186/
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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/621897
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Queues an APC in another process (thread injection)
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 AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 359943 Sample: dgKMrfjI84.exe Startdate: 01/03/2021 Architecture: WINDOWS Score: 100 31 www.lgbt-ya.com 2->31 33 lgbt-ya.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 dgKMrfjI84.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\dgKMrfjI84.exe.log, ASCII 11->29 dropped 57 Tries to detect virtualization through RDTSC time measurements 11->57 15 dgKMrfjI84.exe 11->15         started        signatures6 process7 signatures8 59 Modifies the context of a thread in another process (thread injection) 15->59 61 Maps a DLL or memory area into another process 15->61 63 Queues an APC in another process (thread injection) 15->63 18 explorer.exe 15->18 injected process9 dnsIp10 35 harryballard.net 34.102.136.180, 49731, 80 GOOGLEUS United States 18->35 37 www.harryballard.net 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 22 ipconfig.exe 18->22         started        signatures11 process12 signatures13 51 Modifies the context of a thread in another process (thread injection) 22->51 53 Maps a DLL or memory area into another process 22->53 55 Tries to detect virtualization through RDTSC time measurements 22->55 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/41c87199c61ff26a9f486e5bc9b6bfd010b4c112922bad655599f9a06e2c0ffc/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-03-01 08:40:09 UTC
AV detection:
16 of 48 (33.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ihehdgogd7zgvh2inzn4tnv72ailjqissiv22zkvth42a3rmb76a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
05c3b01f3f582815a9a5c99845273306a23302342adf5215c7fb817e963cc4e0
Formbook
38acc90cd6d33b61b99cca8cf06781e1bd2ab8ffebc3a33e036eca36037d413b
Formbook
3926f922fe1ccafeb2bc3dea0332f8a3ec77ec2387a18e73fbbaafeec93bedab
Formbook
50961752207e439abf40cf15d11d20f5c3d9b68067e571c3029c7bce69ffe085
Formbook
5180e6ef19db039d8365f3cb9690424e61504a80ab94a12738a633b6cdc5fccb
Formbook
5d617282230f991221360f213e15b0e62d0c462afc3d32299c9b410658fbb106
Formbook
720ffc99aa96c665aae27db46f776476c37ca113db207790579adfd81c73ad05
Formbook
8c5a90a4c4470d05fff7757920aa0a8bf56edab04f4eb926ba789652f1bfc74c
Formbook
8eb77ec70c44e86607e97ce926cdb4e0610a0199c348fa329dba50bef34d5fc1
Formbook
e68f17cfe87742103150ca9abd6cc16581caa6e0e0243d03fae2c89c2609c974
Formbook
+ 3'973 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/210301-76qblm4gc6/
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.peiyin.love/mjs/
Unpacked files
SH256 hash:
68b716109ff4e18e21bd0acacb3796f7930771d19f6a766d7d3aa0bbde4ce7e0
MD5 hash:
a3d1d373062f59282307d4b9966d702b
SHA1 hash:
60c9c330e6ff63d3e0b3b0b700ac37bde5997ced
Link:
https://www.unpac.me/results/6dc9d439-91d1-48d7-9ec3-56ede50d8a5b/
SH256 hash:
41c87199c61ff26a9f486e5bc9b6bfd010b4c112922bad655599f9a06e2c0ffc
MD5 hash:
3162f613d8005c2d491c72237ed9142c
SHA1 hash:
51b17e5976dfde9af09674a098cb9b6b34dfa2e3
Link:
https://www.unpac.me/results/6dc9d439-91d1-48d7-9ec3-56ede50d8a5b/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/41c87199c61ff26a9f486e5bc9b6bfd010b4c112922bad655599f9a06e2c0ffc

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:adonunix
Create hunting rule
Author:Tim Brown @timb_machine
Description:AD on UNIX
Rule name:RSharedStrings
Create hunting rule
Author:Katie Kleemola
Description:identifiers for remote and gmremote

File information

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

Web download

Formbook

Executable exe 41c87199c61ff26a9f486e5bc9b6bfd010b4c112922bad655599f9a06e2c0ffc

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1024037/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/120186/

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