MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3903f75f7f0106aa34486f7c546b98a1eba03b1a0d901ccd09fb90294de857a4. 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 3 File information Comments
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SHA256 hash: 3903f75f7f0106aa34486f7c546b98a1eba03b1a0d901ccd09fb90294de857a4
SHA3-384 hash: 9d0ff3d3ed952f0e430b562250de0d39d53569d1d582cad1e4b3eebb8c8402948f323c2afc251c83a5b7fd33869d2582
SHA1 hash: e804a967276c25df1b48e8b5f35109a2559cc55d
MD5 hash: 94fbca3f42d439bed773a04e82b29827
humanhash: equal-jersey-chicken-butter
File name:INVOICE.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:921'600 bytes
First seen:2022-10-24 17:28:54 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:jXNIMvqVefEu5JunXd0qe06DgKWlkmaWpJOBqm3xraOVbp1G+B/NP:7NICSapUKVmaM/AbLn
TLSH T1A21506B221D60697EA2676B18043D5B362FBAE416045D0C369D36FAFFC845BBC12335B
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13101/52/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
173
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
INVOICE.exe
Verdict:
Malicious activity
Analysis date:
2022-10-24 17:31:42 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/fa047aa8-a9d8-4b7c-a9aa-186976cc17a5

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/323536/
Detection(s):
SecuriteInfo.com.Trojan.PWS.StealerNET.122.25158.22714.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching cmd.exe command interpreter
Unauthorized injection to a system process
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/e95d3684-75e1-4b91-ac76-e36829a11e84
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1096798
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Initial sample is a PE file and has a suspicious name
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 domain / URL
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
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
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3903f75f7f0106aa34486f7c546b98a1eba03b1a0d901ccd09fb90294de857a4/
Threat name:
ByteCode-MSIL.Spyware.SnakeLogger
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Status:
Malicious
First seen:
2022-10-20 20:43:17 UTC
File Type:
PE (.Net Exe)
Extracted files:
25
AV detection:
21 of 26 (80.77%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=heb7ox37aedkuncin56fi24yuhv2aoy2bwibztij7oicstpik6sa._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:p94a rat spyware stealer trojan
Link:
https://tria.ge/reports/221024-v2j9sahhbj/
Behaviour
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
Deletes itself
Formbook payload
Formbook
Unpacked files
SH256 hash:
535a0b3e0596a26dedd145e0732fa69f4eb42d2c9a87a972b44e79e2fd76f825
MD5 hash:
7241a753759b2ab23fa2d871a760c331
SHA1 hash:
9e5baa96017ff6de28cf1dabcc15baf3e9e35676
Detections:
FormBook
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/a289a494-379d-48b6-8c23-68cf0607c85b/
Parent samples :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 hash:
f02aa051fc7f02b6aa8bef48a3373bd9d33017f457bd900c9b77d90e39bd03c4
MD5 hash:
2fc99efc48d98e405d0e9774e6bf6927
SHA1 hash:
399190969a89219a404656d641d43993205ff8c9
Link:
https://www.unpac.me/results/a289a494-379d-48b6-8c23-68cf0607c85b/
SH256 hash:
e05bcb3f022d8bd5a7b0ab15d431bfd087e58d55f4b0d4907d620f307ed77da2
MD5 hash:
bdaddaa535ddc0fe3f754646fd534e51
SHA1 hash:
34009d96b2f5684dd3001cf20d0e92aad79bbc9c
Link:
https://www.unpac.me/results/a289a494-379d-48b6-8c23-68cf0607c85b/
SH256 hash:
678d527fc01a0eaa1be366ca97b0ad5a3fe890b1ef8267d2fc981ff43c4d08e5
MD5 hash:
2da433d67db4775d8f02a8fed4b31bf3
SHA1 hash:
235fe8f2076f3b5cfffacc574825550cee8e61e9
Link:
https://www.unpac.me/results/a289a494-379d-48b6-8c23-68cf0607c85b/
SH256 hash:
edadc813f4440ada276da601d8f31780e5e138b8ee392e3f49a509322a1fb51e
MD5 hash:
574597554c69083c1af2b742a97a92b6
SHA1 hash:
043eea660b8650c5a0042f842fd8db3516d37a2c
Link:
https://www.unpac.me/results/a289a494-379d-48b6-8c23-68cf0607c85b/
SH256 hash:
3903f75f7f0106aa34486f7c546b98a1eba03b1a0d901ccd09fb90294de857a4
MD5 hash:
94fbca3f42d439bed773a04e82b29827
SHA1 hash:
e804a967276c25df1b48e8b5f35109a2559cc55d
Link:
https://www.unpac.me/results/a289a494-379d-48b6-8c23-68cf0607c85b/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.81
Link:
https://yomi.yoroi.company/submissions/3903f75f7f0106aa34486f7c546b98a1eba03b1a0d901ccd09fb90294de857a4

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:INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
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.

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/323536/

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