MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3e71d457ca114497a6b54846e2f6d571db0619199c046d4fed20bbc93d50e7bd. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3e71d457ca114497a6b54846e2f6d571db0619199c046d4fed20bbc93d50e7bd
SHA3-384 hash: f21f3d869b8a31d7b4f4a68c3f389acb181f2b0827f587cceac4e8a1dc6cd0ed9f9215fe779cfc379a1232729f681ff0
SHA1 hash: dc7873dca5670a0a413830ce9b789de3e447d208
MD5 hash: 6fd064cd50068910772cf683fe2cfeb9
humanhash: shade-pasta-island-mexico
File name:SecuriteInfo.com.W32.AIDetectNet.01.10391.28389
Download: download sample
Signature Formbook
Create hunting rule
File size:989'184 bytes
First seen:2022-08-08 07:30:27 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:TBDZJDmoJixrOj++XB828pge9IbUDHDlR:TBDZJDCxrOjj2g7Uv
TLSH T1DB259D17AFA47605E4F75BB9DC1B787183F63809613EE2782E905CAB2DFA700D50162B
TrID 61.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.0% (.SCR) Windows screen saver (13101/52/3)
8.8% (.EXE) Win64 Executable (generic) (10523/12/4)
5.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon c6ccc84ec8cc8ad8 (10 x AgentTesla, 10 x Formbook, 7 x SnakeKeylogger)
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
263
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SecuriteInfo.com.W32.AIDetectNet.01.10391.28389
Verdict:
Malicious activity
Analysis date:
2022-08-08 07:32:54 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/590678bb-67b5-4438-9666-6bebcacb88de

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/297069/
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.10391.28389.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
DNS request
Unauthorized injection to a recently created process
Creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
explorer.exe packed
Link:
https://www.filescan.io/uploads/62f0bbb76fb6aea51f1a3280/reports/a2934261-eff3-4840-8838-91f94c4a0dc4/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/da8bcdc1-853b-4457-aaf9-838a233461a7
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/1047815
Signature
.NET source code contains potential unpacker
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
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
Yara detected AntiVM3
Yara detected FormBook
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3e71d457ca114497a6b54846e2f6d571db0619199c046d4fed20bbc93d50e7bd/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2022-08-08 02:24:46 UTC
File Type:
PE (.Net Exe)
Extracted files:
18
AV detection:
20 of 25 (80.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hzy5iv6kcfcjpjvvjbdof5wvohnqmgiztqcg2t7nec54spkq466q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:private rat spyware stealer trojan
Link:
https://tria.ge/reports/220808-jcc9dshef7/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook payload
Formbook
Unpacked files
SH256 hash:
902abd029c2ffb3b0caec8ad8edd214b64f9756ce53a58b6b066769dd5c8a805
MD5 hash:
cf9002f69be94066950b8d62ad2623ec
SHA1 hash:
7ac3b755606730ace44f5fb491a376eec064d473
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
FormBook
Create hunting rule
Link:
https://www.unpac.me/results/8fd14377-8d5f-4f2b-8d21-9f459412639c/
Parent samples :
5f633ef17fcbc3f2f34548cbf4af305f64873fefa7af6d3bcbde2b070b31f8a3
a6c9d8fdd84cae9e61caded848605b1b3da4ea05a7d20d74400053cdedf0850d
e320d82067b3b2fe0cd1d0b8c0655f8c974b60c4a1834b37a51d6170c615edc3
3e71d457ca114497a6b54846e2f6d571db0619199c046d4fed20bbc93d50e7bd
8636859de5eb225cb108b7d095f229e68293c827e565eda640d97ddcab6b6135
02dd876edf632bdebf413acf1ab9d1087c4ce9989d46e527d8a6ec5111862e08
SH256 hash:
642d5b8aa52ca35d8386a5b4302aa503d330753426dd950e6c2a47efdbb4b7e2
MD5 hash:
2e85fdecd9837f0895ee6568f97b3cfd
SHA1 hash:
a4df92cf9adfa1c7d26f6d19923cbfa4cbfc596f
Link:
https://www.unpac.me/results/8fd14377-8d5f-4f2b-8d21-9f459412639c/
SH256 hash:
605e41b6e36e3476c761361520a8f7b70b10e1511d2598fa20b33bf92e3b7f03
MD5 hash:
5b5e448eab22e74e2c634d55e78a9529
SHA1 hash:
8947ad4df40de711f7a4dffdb89f795b538f22a6
Link:
https://www.unpac.me/results/8fd14377-8d5f-4f2b-8d21-9f459412639c/
SH256 hash:
01710a89e1e58000e094124aae0e287bd65401fb2f49e31f3324f784197cff72
MD5 hash:
430d63ed4de11a13604d749e0d628d30
SHA1 hash:
744b79005b529c6fcbfd2b3a9d2fb478c1df776a
Link:
https://www.unpac.me/results/8fd14377-8d5f-4f2b-8d21-9f459412639c/
SH256 hash:
f0d11de474d2981814df484051dd7f3d2442295813f06fd16a8da964fe008686
MD5 hash:
9baaa5aa316d93731f39cb136edac486
SHA1 hash:
359d7e475f8c59ae152ad55534a62a623162d794
Link:
https://www.unpac.me/results/8fd14377-8d5f-4f2b-8d21-9f459412639c/
SH256 hash:
3e71d457ca114497a6b54846e2f6d571db0619199c046d4fed20bbc93d50e7bd
MD5 hash:
6fd064cd50068910772cf683fe2cfeb9
SHA1 hash:
dc7873dca5670a0a413830ce9b789de3e447d208
Link:
https://www.unpac.me/results/8fd14377-8d5f-4f2b-8d21-9f459412639c/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/3e71d457ca11/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/3e71d457ca114497a6b54846e2f6d571db0619199c046d4fed20bbc93d50e7bd

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: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/297069/

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