MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b945450834c1b291b59ad3e4360a4493657dbff4dc653cc593eca008ee4f49db. 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: 14


Intelligence 14 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b945450834c1b291b59ad3e4360a4493657dbff4dc653cc593eca008ee4f49db
SHA3-384 hash: 78207ec0853f333d214b868210363f77145dee1ee99ba56c4a31fd4dbc7cb328cc0b1f0cc907955f5f1bdb6b25a52d6e
SHA1 hash: 4fe40b4d55e41d232c0799862372c93e3c3cf78b
MD5 hash: 43723f48e53efb30d879a7e914303ffc
humanhash: island-whiskey-beer-two
File name:43723f48e53efb30d879a7e914303ffc.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:520'192 bytes
First seen:2022-06-28 10:26:24 UTC
Last seen:2022-06-28 10:49:13 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 6144:ASADg/AWmISaCVEkYgTRDsko41o+5j9+5lI45hYwSwlcmRztpLnoqWK4/YT5YA8y:/ADT/+PiLs8jA5lIHwny8DLnoqWKH9
TLSH T1C1B412926BD97F4AD23663B77930013157BA32AB4D26E06F498CF49E11B27C0E015EE7
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) (4505/5/1)
2.0% (.EXE) Win16/32 Executable Delphi generic (2072/23)
File icon (PE):PE icon
dhash icon 00c0c4e4e4c4c000 (11 x Formbook, 9 x AgentTesla, 7 x Loki)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
216
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/283888/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62bad783b49ffe5b886a37dd/reports/f00d5036-d413-450e-be10-f1e1428e10bf/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/65612d93-2b48-4f34-8c1e-aa6775ca2d76
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1021106
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in 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)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 653602 Sample: HtPOo3UphC.exe Startdate: 28/06/2022 Architecture: WINDOWS Score: 100 31 www.valoragregadosac.com 2->31 33 valoragregadosac.com 2->33 35 Malicious sample detected (through community Yara rule) 2->35 37 Antivirus detection for URL or domain 2->37 39 Yara detected AntiVM3 2->39 41 7 other signatures 2->41 11 HtPOo3UphC.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\HtPOo3UphC.exe.log, ASCII 11->29 dropped 49 Tries to detect virtualization through RDTSC time measurements 11->49 51 Injects a PE file into a foreign processes 11->51 15 HtPOo3UphC.exe 11->15         started        signatures6 process7 signatures8 53 Modifies the context of a thread in another process (thread injection) 15->53 55 Maps a DLL or memory area into another process 15->55 57 Sample uses process hollowing technique 15->57 59 Queues an APC in another process (thread injection) 15->59 18 explorer.exe 15->18 injected process9 process10 20 wlanext.exe 18->20         started        signatures11 43 Modifies the context of a thread in another process (thread injection) 20->43 45 Maps a DLL or memory area into another process 20->45 47 Tries to detect virtualization through RDTSC time measurements 20->47 23 cmd.exe 1 20->23         started        25 explorer.exe 154 20->25         started        process12 process13 27 conhost.exe 23->27         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b945450834c1b291b59ad3e4360a4493657dbff4dc653cc593eca008ee4f49db/
Threat name:
ByteCode-MSIL.Spyware.SnakeLogger
Create hunting rule
Status:
Malicious
First seen:
2022-06-28 08:49:15 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
18 of 26 (69.23%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xfcukcbuygzjdnm22psdmcsesnsx3p7u3rstzrmt5sqar3spjhnq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:rv4k rat spyware stealer trojan
Link:
https://tria.ge/reports/220628-mg376aggel/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Unpacked files
SH256 hash:
5995e1fbb91dbfad514b36b96f79365f66b61957af56ebb8dd00b2a245c1b7b0
MD5 hash:
57d30ab4bc396455eaf47a444a829621
SHA1 hash:
e6683c40eaa4eef4fbe0aef0f8ac73bc26e2df4c
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
FormBook
Create hunting rule
Link:
https://www.unpac.me/results/e894c773-f8f9-4fb2-8313-fc99809d57ba/
Parent samples :
05b1cd603281b2bcdd1f29d7c48f75a7e8fa63c4f3c14a17d7c155465896fdff
e41122044db8ad3ee6a74cbd7e58e878ace8362acb204f4ef1b744af1cb8f4d6
b945450834c1b291b59ad3e4360a4493657dbff4dc653cc593eca008ee4f49db
SH256 hash:
0aa8ea56f670ef5041fe87ee1a27b6623c2cf7996ed489214aa076996ca40cac
MD5 hash:
faf84cab64260654988db2f9157f8f89
SHA1 hash:
e1e6ebeaf252c78e74c1355cdefc6a2c52cfab70
Link:
https://www.unpac.me/results/e894c773-f8f9-4fb2-8313-fc99809d57ba/
SH256 hash:
0cb6aef1fa57d11408e47ae071485ef8f48c2982997b8d74b47a4151d85b978c
MD5 hash:
843aa6edf83bff7b61c6a5369ef41e95
SHA1 hash:
d1bfeec8eaac9a1dacf2f7062ce964d8e7d77085
Link:
https://www.unpac.me/results/e894c773-f8f9-4fb2-8313-fc99809d57ba/
SH256 hash:
e0ac023be7b0cafb8475e62fe437bcdf2e719dd89541cab41d0cd66a7b29eab2
MD5 hash:
82fd456a3f343c4266b5e1a40d577db3
SHA1 hash:
6be0d55dbb77a721505cf98449cff061c2792dfa
Link:
https://www.unpac.me/results/e894c773-f8f9-4fb2-8313-fc99809d57ba/
SH256 hash:
3ef12c49a4fae19445d0e6f6c3edfeab5dae0e7c92323a20d226ee5b56da0f92
MD5 hash:
1698e54b2a631776ccb0bcdca05669d8
SHA1 hash:
27045d41f78177b2f52bbe2aac3a8f05192b5a29
Link:
https://www.unpac.me/results/e894c773-f8f9-4fb2-8313-fc99809d57ba/
SH256 hash:
b945450834c1b291b59ad3e4360a4493657dbff4dc653cc593eca008ee4f49db
MD5 hash:
43723f48e53efb30d879a7e914303ffc
SHA1 hash:
4fe40b4d55e41d232c0799862372c93e3c3cf78b
Link:
https://www.unpac.me/results/e894c773-f8f9-4fb2-8313-fc99809d57ba/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b945450834c1/report/overview.html
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/b945450834c1b291b59ad3e4360a4493657dbff4dc653cc593eca008ee4f49db

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:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB
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.

Web download

Formbook

Executable exe b945450834c1b291b59ad3e4360a4493657dbff4dc653cc593eca008ee4f49db

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2251300/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/283888/

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