MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c5f12df3ea1a353211d78d2fee55c7efdf9ff6ada6ec21ffb513661734072543. 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: 13


Intelligence 13 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c5f12df3ea1a353211d78d2fee55c7efdf9ff6ada6ec21ffb513661734072543
SHA3-384 hash: 46715e9e552dd7bc4459114df7411f32f0b50d1b00d8dfeb47bab79deaf3c7d48dba0b33b13143920c0ec3e7ef9bfc5d
SHA1 hash: c6fad2f3781b734690d9fb7cc3e44c5ae6ce16dd
MD5 hash: ecbfd514f4c2e49d00cfc028f79b8de9
humanhash: butter-winter-mobile-mango
File name:PO SENDFAFE600.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'092'608 bytes
First seen:2024-01-29 13:57:08 UTC
Last seen:2024-01-29 15:25:23 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'738 x AgentTesla, 19'596 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:vETzHr7FLOYmpEzAZ3wSCB93O7P+qnAivnyo9rMS9NaWoH8J5s1pkvgV:KNL2+zAaO7P7nAEyo+S9UVHmuog
TLSH T11F3528B864B84567C47AC6F19EE59433F091ADAF30608D1859DB775213BB70238CBE2E
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
File icon (PE):PE icon
dhash icon eeacac8cb6e2ba86 (561 x SnakeKeylogger, 142 x AgentTesla, 40 x Formbook)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
286
Origin country :
NL NL
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/473446/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.2591.6355.13319.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Сreating synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
loki packed
Link:
https://www.filescan.io/uploads/65b7aef71125a8c8cb6e0def/reports/f2e7b81b-3fee-45aa-9319-91814e0b3cf3/overview
Verdict:
Malicious
Labled as:
Ransom.Loki.Generic
Link:
https://www.hybrid-analysis.com/sample/c5f12df3ea1a353211d78d2fee55c7efdf9ff6ada6ec21ffb513661734072543
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b5e5ebfe-a79e-4431-b11e-7331e6151130
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1382729
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Antivirus / Scanner detection for submitted sample
Initial sample is a PE file and has a suspicious name
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/c5f12df3ea1a353211d78d2fee55c7efdf9ff6ada6ec21ffb513661734072543
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c5f12df3ea1a353211d78d2fee55c7efdf9ff6ada6ec21ffb513661734072543/
Threat name:
ByteCode-MSIL.Ransomware.Loki
Create hunting rule
Status:
Malicious
First seen:
2024-01-13 10:31:22 UTC
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yxys347kdi2teeoxrux64voh57pz75vnu3wcd75vcntbonahevbq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/240129-q9vchacgdk/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
7660125fe23bc6db2812dd53038e3bc61528ed78bb1ae2fdcff3a926388aea29
MD5 hash:
2f6d0a1f00f1f78cae11471fd6903185
SHA1 hash:
4648f0c9c669141d288a1c875e7b2bcb2283eb22
Link:
https://www.unpac.me/results/1b3bde07-4007-4a39-b3bd-53da3f9849e9/
SH256 hash:
11d94408453f175f935f2557c48105883e289de4d53e7c228395e42c7d0d43d2
MD5 hash:
7847b2fe014ae4ec3456ec9aebfb0f3a
SHA1 hash:
7c094b787386d248323c57a8116fadd354979da5
Link:
https://www.unpac.me/results/1b3bde07-4007-4a39-b3bd-53da3f9849e9/
SH256 hash:
b130cb2e5d5bb0d55a267bb5dfe416bfe3acf5d09fc2abef432d5bb639a364f1
MD5 hash:
9c9863358bc1ebb1033f8637c51240ea
SHA1 hash:
ff82e722518dafc8fc3d3809f721182edf70b595
Link:
https://www.unpac.me/results/1b3bde07-4007-4a39-b3bd-53da3f9849e9/
SH256 hash:
05c701e796567a98afd664481f2667abff69a58a6d8ad3af7616a27cc4f36ed4
MD5 hash:
4b462faff3377bfbfc79fa40c9e87b60
SHA1 hash:
f719f9c1dd83df22a212ac700cd56e20e7fd892c
Link:
https://www.unpac.me/results/1b3bde07-4007-4a39-b3bd-53da3f9849e9/
SH256 hash:
21afe82a0b71ee589c26f32dc88e0a6e22817f21194b2a83f1807c6cecc8c818
MD5 hash:
440bb4db146ccb1161ac2bcf365d7676
SHA1 hash:
506eda511b46df6e95d86861e70fda81307f8623
Link:
https://www.unpac.me/results/1b3bde07-4007-4a39-b3bd-53da3f9849e9/
SH256 hash:
c5f12df3ea1a353211d78d2fee55c7efdf9ff6ada6ec21ffb513661734072543
MD5 hash:
ecbfd514f4c2e49d00cfc028f79b8de9
SHA1 hash:
c6fad2f3781b734690d9fb7cc3e44c5ae6ce16dd
Link:
https://www.unpac.me/results/1b3bde07-4007-4a39-b3bd-53da3f9849e9/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c5f12df3ea1a/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/c5f12df3ea1a353211d78d2fee55c7efdf9ff6ada6ec21ffb513661734072543

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
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.

Malspam

Formbook

Executable exe c5f12df3ea1a353211d78d2fee55c7efdf9ff6ada6ec21ffb513661734072543

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/473446/

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