MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f2dbb6d22033306507ed1ed49781edaa558374b79ac871276cdb33b343c8f7bc. 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: 8


Intelligence 8 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f2dbb6d22033306507ed1ed49781edaa558374b79ac871276cdb33b343c8f7bc
SHA3-384 hash: ffeed5683989d08fa9645e1f2a664a16445cd6638aed758b1a9609122e4deab91e143d500a325fc9e89c1b2780c2cf71
SHA1 hash: 8e0fdac45a302dbe5b299270faee3d2d2fd3263e
MD5 hash: e46a53f767a1f8330dc7c3121fab6b10
humanhash: asparagus-kilo-bakerloo-winter
File name:929394020293276393.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'012'224 bytes
First seen:2021-06-21 15:08:11 UTC
Last seen:2021-06-22 06:17:46 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:nJ4HOe0t4oBNHRVIampamTec3G2qskTLoyL:n2Oe0CoBNHRVIampamTec3G2qskTL
Threatray 5'676 similar samples on MalwareBazaar
TLSH 6B25BE29F7917FE6C1590F3B851B0E9483F081377232F79B6DE15AE42602B994A5F283
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
132
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
929394020293276393.exe
Verdict:
Malicious activity
Analysis date:
2021-06-21 15:10:48 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/147218e2-5099-4e04-9e93-f3694526449d

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/167320/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.ABOW.28513.26099.UNOFFICIAL
Create hunting rule

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/3af5ff5c-d906-453c-be76-fb45b936cc8a
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/805414
Signature
.NET source code contains very large array initializations
Allocates memory in foreign processes
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
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
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 437825 Sample: 929394020293276393.exe Startdate: 21/06/2021 Architecture: WINDOWS Score: 100 29 www.impact-calendar.com 2->29 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 Multi AV Scanner detection for submitted file 2->51 53 4 other signatures 2->53 9 929394020293276393.exe 15 4 2->9         started        13 explorer.exe 2->13         started        signatures3 process4 dnsIp5 25 C:\Users\user\AppData\...\AddInProcess32.exe, PE32 9->25 dropped 27 C:\Users\user\...\929394020293276393.exe.log, ASCII 9->27 dropped 55 Writes to foreign memory regions 9->55 57 Allocates memory in foreign processes 9->57 59 Hides that the sample has been downloaded from the Internet (zone.identifier) 9->59 61 Injects a PE file into a foreign processes 9->61 16 AddInProcess32.exe 9->16         started        31 www.witchywomanliving.com 13->31 33 www.golf49.com 13->33 35 2 other IPs or domains 13->35 63 System process connects to network (likely due to code injection or exploit) 13->63 19 msdt.exe 13->19         started        file6 signatures7 process8 signatures9 37 Modifies the context of a thread in another process (thread injection) 16->37 39 Maps a DLL or memory area into another process 16->39 41 Sample uses process hollowing technique 16->41 43 Queues an APC in another process (thread injection) 16->43 45 Tries to detect virtualization through RDTSC time measurements 19->45 21 cmd.exe 1 19->21         started        process10 process11 23 conhost.exe 21->23         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f2dbb6d22033306507ed1ed49781edaa558374b79ac871276cdb33b343c8f7bc/
Threat name:
ByteCode-MSIL.Trojan.Woreflint
Create hunting rule
Status:
Malicious
First seen:
2021-06-21 11:54:58 UTC
AV detection:
16 of 29 (55.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6ln3nuragmygkb7nd3kjpapnvjkyg5fxtlehcj3m3mz3gq6i666a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
6116dfa4c8a11409b07bf99e7be47096aa08b0891e730c70f3b1c2c9fabd0fe9
Formbook
8d45c54297edec973add090c8e620ecb9cda7d7ae2c24c00d77a4361f8026eef
Formbook
914c79c23d30b4df795779800b6e14ac42bec2dc618d11d7c0b526960fc6283c
Formbook
a677db1e19ef0ff96a19fb973e8505296ca98d69c2eb7f97c18f097b6786f9b7
Formbook
a86f792a5a3d424b756508cb462d3ca9b454f2513a5471df5d41da33649748e9
Formbook
b0cb75ec80235b836d03b9dc5d5c0869f01e914f558803db9c15ad978c033dd1
Formbook
b2fa4bbff4b67fef522c3b6cbc3a98b0c2f463045f19af5f96ee7a3c48ea9f93
Formbook
d9bdfeb51aaa4192014f7263a7613a7cc812d3e7fbfbf5fcee5458ca1e58c04b
Formbook
ec744aeae689c95f44a24eb398e65c3a722595de5504db84b2e41488f30a7510
Formbook
fb1efc79e627fcc4485b3bbde9d948f673172715a7fb165f373f79ba31671fb8
Formbook
+ 5'666 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook agilenet rat spyware stealer trojan
Link:
https://tria.ge/reports/210621-hxmxh5n1nn/
Behaviour
Enumerates system info in registry
Modifies system certificate store
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
Loads dropped DLL
Obfuscated with Agile.Net obfuscator
Executes dropped EXE
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.lf712.com/lbty/
Unpacked files
SH256 hash:
f2dbb6d22033306507ed1ed49781edaa558374b79ac871276cdb33b343c8f7bc
MD5 hash:
e46a53f767a1f8330dc7c3121fab6b10
SHA1 hash:
8e0fdac45a302dbe5b299270faee3d2d2fd3263e
Link:
https://www.unpac.me/results/a36ae5d0-1d0f-4f4a-ba67-036a8a9b29a6/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/f2dbb6d22033306507ed1ed49781edaa558374b79ac871276cdb33b343c8f7bc

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 f2dbb6d22033306507ed1ed49781edaa558374b79ac871276cdb33b343c8f7bc

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/167320/

Comments