MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4b8c3b49cc5ceaea396ffc0444d625d7cc3c231b973f2775a23ab3cafece504d. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments
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SHA256 hash: 4b8c3b49cc5ceaea396ffc0444d625d7cc3c231b973f2775a23ab3cafece504d
SHA3-384 hash: a720fe288777fd3742bb4290004eba6d6717a926bd5e1ce77044034d549500b867a712ee89f67263c3fcc1c3683829d4
SHA1 hash: 8e56e555ba4a208f038730c1d89a8fc1b93b77f5
MD5 hash: cd6b78a456e3f72a4a48c866602bc617
humanhash: charlie-solar-delta-social
File name:SecuriteInfo.com.W32.AIDetectNet.01.29221.12172
Download: download sample
Signature FormBook
Create hunting rule
File size:489'984 bytes
First seen:2022-06-21 03:32:11 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:l7KvwR22rmFBbB80bWCp0LfJnhff9Aq1v:AvI22y95WCmlAq1
TLSH T194A4E0F18FF8BA59E528317774A0A07C77E31D1DCC91A43AD69BF04A74A26C025E1E1B
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)
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
249
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/281771/
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.29221.12172.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62b13bcabc1f1524603b84b5/reports/1c18acd2-841c-4005-a53b-182eec41764e/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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/eee64fd4-b879-4eb3-be89-3e792370291a
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1016788
Signature
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4b8c3b49cc5ceaea396ffc0444d625d7cc3c231b973f2775a23ab3cafece504d/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-06-21 01:47:34 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
20 of 41 (48.78%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jogdwsomltvouolp7qcejvrf27gdyiy3s47so5nchkz4v7wokbgq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:t19g rat spyware stealer trojan
Link:
https://tria.ge/reports/220621-d362haadfk/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Formbook Payload
Formbook
Unpacked files
SH256 hash:
22abd8cd411559d6c2d6665d82495f9955656f03a9cccd1f17b42fb9c25e8a97
MD5 hash:
6a48a2225ff2075094b5faebe11e7df4
SHA1 hash:
09d61dd5729fb37b61dc91de43999d4d1c5ab302
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/2da50c81-ba67-46b6-8dfe-63f9ac9ceade/
Parent samples :
d4d430cfe4399aa57154854567d17ef118b6d0eee083b683f81957d2057949b0
262fb779ec6fd7c58573c11480f2293f7680b38d3b62eb9acea9d228ed0a2f09
4b8c3b49cc5ceaea396ffc0444d625d7cc3c231b973f2775a23ab3cafece504d
b1313b8c8d249728b5fe9756332a98c1415468df5f7001f2c1e4c26826edb83e
a06756251dbd94ca9bbecb73e4b5e9c768d3fada398cccae4a59323aebb31eab
SH256 hash:
6de8bc7d4844efdb55328126b632a374bee9aaf3073cf9ca5fe5fdf303106f8e
MD5 hash:
7ce2d10bd0f02667bc0e1343d9ffc1c1
SHA1 hash:
c3a5b4e5721085022eb7bf0008b7e449f9369fcf
Link:
https://www.unpac.me/results/2da50c81-ba67-46b6-8dfe-63f9ac9ceade/
SH256 hash:
84bee18c2941afde3b8c62a9a4472224a1c68a2e4ecc46da7b9065a22b668242
MD5 hash:
7c3e2d8f0ab497e6dcfe639c2b30f959
SHA1 hash:
85af17fa5d5a644c2a0e2ebd85274385e588e98c
Link:
https://www.unpac.me/results/2da50c81-ba67-46b6-8dfe-63f9ac9ceade/
SH256 hash:
354b5c00c4fb68bc015e79ca9c9561b681e086d1cca689f9922b9355c78be4a8
MD5 hash:
d69caf5699e56f0b0bd9aa9a71c4c125
SHA1 hash:
1baacfa1985b6af28b229596ed3ee2e92b5fae72
Link:
https://www.unpac.me/results/2da50c81-ba67-46b6-8dfe-63f9ac9ceade/
SH256 hash:
4b8c3b49cc5ceaea396ffc0444d625d7cc3c231b973f2775a23ab3cafece504d
MD5 hash:
cd6b78a456e3f72a4a48c866602bc617
SHA1 hash:
8e56e555ba4a208f038730c1d89a8fc1b93b77f5
Link:
https://www.unpac.me/results/2da50c81-ba67-46b6-8dfe-63f9ac9ceade/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/4b8c3b49cc5ceaea396ffc0444d625d7cc3c231b973f2775a23ab3cafece504d

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:exploit_any_poppopret
Create hunting rule
Author:Jeff White [karttoon@gmail.com] @noottrak
Description:Identify POP -> POP -> RET opcodes for quick ROP Gadget creation in target binaries.
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/281771/

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