MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 21a34d80499260fcf691ed16c83da9f3a9d14a7e2299d73d7976112230a98e5a. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 21a34d80499260fcf691ed16c83da9f3a9d14a7e2299d73d7976112230a98e5a
SHA3-384 hash: f959b9275569215b1f01ef360a19006982d5a2ba4d3202d026e1a0e8c3ef2e400d8c5436dd0cc1fc5b4398349168f504
SHA1 hash: 3a164584b8fde06639ce6d051ebe7ae5544cf943
MD5 hash: e7a029f25a89befb7b3add26cabdaa9b
humanhash: arizona-diet-butter-kilo
File name:8985400443_12022024.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:642'048 bytes
First seen:2024-02-12 07:41:20 UTC
Last seen:Never
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:wXEzqHKMbNhOdU0KaRD2RIy381JnoewVVaViCNblc1TkiqgX5LRN2s8I8:w0z87bPaRDHJxwVsVvNblYIUtF
Threatray 1'076 similar samples on MalwareBazaar
TLSH T1FDD4231076E6CF7AD91D07FB52B9224037B6EF5A2022EB5BFD5236F85166F010A84B43
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 9679d4b4a2ec6196 (4 x Formbook, 4 x AgentTesla, 1 x RemcosRAT)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
299
Origin country :
NL NL
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/475790/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Launching a process
Launching cmd.exe command interpreter
Setting browser functions hooks
Forced shutdown of a system process
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/65c9cbce02d5be924b636a2e/reports/a8cb4ade-647a-4e87-bc22-fabd88ba1290/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/21a34d80499260fcf691ed16c83da9f3a9d14a7e2299d73d7976112230a98e5a
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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/70db558c-c215-4859-a051-092e2183c664
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1390581
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Antivirus detection for URL or domain
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
Sigma detected: Script Initiated Connection to Non-Local Network
Snort IDS alert for network traffic
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1390581 Sample: 8985400443_12022024.exe Startdate: 12/02/2024 Architecture: WINDOWS Score: 100 33 www.yggp7amm.top 2->33 35 www.ul52.site 2->35 37 8 other IPs or domains 2->37 39 Snort IDS alert for network traffic 2->39 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 9 other signatures 2->45 11 8985400443_12022024.exe 3 2->11         started        signatures3 process4 signatures5 53 Tries to detect virtualization through RDTSC time measurements 11->53 55 Injects a PE file into a foreign processes 11->55 14 8985400443_12022024.exe 11->14         started        process6 signatures7 57 Modifies the context of a thread in another process (thread injection) 14->57 59 Maps a DLL or memory area into another process 14->59 61 Sample uses process hollowing technique 14->61 63 Queues an APC in another process (thread injection) 14->63 17 explorer.exe 94 1 14->17 injected process8 dnsIp9 27 www.gmnj7.site 124.156.166.165, 49719, 80 TENCENT-NET-AP-CNTencentBuildingKejizhongyiAvenueCN Singapore 17->27 29 www.oo9cs.site 156.234.201.169, 80 MOACKCOLTD-AS-APMOACKCoLTDKR Seychelles 17->29 31 3 other IPs or domains 17->31 20 cscript.exe 12 17->20         started        process10 signatures11 47 Modifies the context of a thread in another process (thread injection) 20->47 49 Maps a DLL or memory area into another process 20->49 51 Tries to detect virtualization through RDTSC time measurements 20->51 23 cmd.exe 1 20->23         started        process12 process13 25 conhost.exe 23->25         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/21a34d80499260fcf691ed16c83da9f3a9d14a7e2299d73d7976112230a98e5a
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/21a34d80499260fcf691ed16c83da9f3a9d14a7e2299d73d7976112230a98e5a/
Threat name:
ByteCode-MSIL.Trojan.SnakeKeylogger
Create hunting rule
Status:
Malicious
First seen:
2024-02-12 02:09:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
20 of 37 (54.05%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=egru3acjsjqpz5ur5ulmqpnj6ou5cst6ekm5oplzoyisemfjrzna._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0cae14234a421c5fa50da5945027c7d75167ae1c6517d7ce8733b4eb91b4c221
Formbook
7d08e32acf3a9ce5b471219b20d8c8c9bbe4fc03601f41b36291afdec86f39ce
Formbook
982a9a52e532bbfe52941c4ab95c2899c1af75e9a3eee2b1977e3f49e8a3e71e
Formbook
ac0b1f47f36bdbc8974390d8473d74f6e71d5219a338796ed9d0582f8020f8c7
Formbook
c1aa65f7c2cc6beb7052c8ada46a3139fc01da66890f4153a7c5761292b71d61
Formbook
d93058ce47215773bfed7fc6a36c4991a4d3278ce71cfd6ec23d0c3b74566798
Formbook
+ 1'066 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:ki21 rat spyware stealer trojan
Link:
https://tria.ge/reports/240212-jjn98shg56/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook payload
Formbook
Unpacked files
SH256 hash:
49e4740bda6c13ab67503ed276497089205a297dc2ca2645116b37e1f3b9d0aa
MD5 hash:
73673e1cff8aa4de7fe976521ed74940
SHA1 hash:
958864dcd2ea903319640681b62a5d630b254374
Detections:
FormBook
Create hunting rule
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Formbook
Create hunting rule
Link:
https://www.unpac.me/results/fd9a499c-83d7-4641-a33d-f53b4e41093a/
Parent samples :
ac0b1f47f36bdbc8974390d8473d74f6e71d5219a338796ed9d0582f8020f8c7
21a34d80499260fcf691ed16c83da9f3a9d14a7e2299d73d7976112230a98e5a
2a1b5e6dcd2c73e73fa3cdd788771c9f25152cb60d8c8ad186983327f541d0fa
96deb2b04135c0b3d7f7ad059870a3fb2e8aebcf8c260df81f507d8fbe71fb5c
b98dbe3fbbc3aebd02d205d45b61c61d71b83bc8cec5435bb6e5c9b880872f73
37b8750101990658c22bfd86276c1b8ae86b627a40ac5b8ce20b9b305a3ff465
2a321e21bd01aa4f0ff4793c7ab4b2bcc01ff89f098b39daa0ba1e335f05ca2a
SH256 hash:
d5a305a432ad4b78824acfc7ae8a1341ff42162cb05f8782de8e65b277880a11
MD5 hash:
c0ae4fe4cca61e5de1fbc77278b68d47
SHA1 hash:
cc0e49cee8de95bcadeb36b4eb603b6ad9e1a54c
Link:
https://www.unpac.me/results/fd9a499c-83d7-4641-a33d-f53b4e41093a/
SH256 hash:
f7996d243360525dae0041760d1c85a185465fb846571f8bcba157b360a53599
MD5 hash:
a9117a2130ba4d8ea7d8fbf43d32006e
SHA1 hash:
7a93aca2e0ee87b899aa398bb085a8864a583f91
Link:
https://www.unpac.me/results/fd9a499c-83d7-4641-a33d-f53b4e41093a/
SH256 hash:
38e0c6d980305c75802c29c0296f16fe0e9d8ef0c387580096acbfb914a805a3
MD5 hash:
6d6dc9776d8f8feaf6f35048c87e3c85
SHA1 hash:
2a93098d71c171354d458ecabd97c5b2aca00cf4
Link:
https://www.unpac.me/results/fd9a499c-83d7-4641-a33d-f53b4e41093a/
SH256 hash:
21a34d80499260fcf691ed16c83da9f3a9d14a7e2299d73d7976112230a98e5a
MD5 hash:
e7a029f25a89befb7b3add26cabdaa9b
SHA1 hash:
3a164584b8fde06639ce6d051ebe7ae5544cf943
Link:
https://www.unpac.me/results/fd9a499c-83d7-4641-a33d-f53b4e41093a/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/21a34d804992/report/overview.html
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/21a34d80499260fcf691ed16c83da9f3a9d14a7e2299d73d7976112230a98e5a

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:NET
Create hunting rule
Author:malware-lu
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.

Cape
Cape
https://www.capesandbox.com/analysis/475790/

Comments