MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4ea3d22ec69a4b7c9382037516b64d5eecc70e14423281ac2697c22ac7bfeb72. 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: 16


Intelligence 16 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4ea3d22ec69a4b7c9382037516b64d5eecc70e14423281ac2697c22ac7bfeb72
SHA3-384 hash: c68e7e86eba9fd82db874f8dd2e2b9b395843ed990e93d68eb6674bc763eb1ee7494882cd339ede4ce98ee962a6b8c2b
SHA1 hash: a50cc769f6fdb1de712a29cdd37fa9123a382436
MD5 hash: afa31e73d52ba5d7aeafe95a7b81d885
humanhash: lion-steak-juliet-red
File name:Replacement Mar 23.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:704'000 bytes
First seen:2023-03-15 23:03:16 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'610 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:9XDnmFFBiPIec588VAQxCcof6wvQe9pMZfrfGj/Smm727NojbN:pm0XT85xCpf6wIk8frOj/D76
Threatray 531 similar samples on MalwareBazaar
TLSH T16DE45AACF8AF50EDE1ACEC7B5AC1C41F6BF39C1B35CDF95952923A140212269E8D601D
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% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
237
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Replacement Mar 23.exe
Verdict:
Malicious activity
Analysis date:
2023-03-15 23:03:53 UTC
Tags:
stealer formbook trojan
Link:
https://app.any.run/tasks/5437f55e-3887-480a-b731-6b8ecc66852a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/374661/
Detection(s):
Sanesecurity.Malware.29036.BadIN.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Unauthorized injection to a recently created process
Creating a file
Launching a process
Searching for synchronization primitives
DNS request
Sending an HTTP GET request
Launching the default Windows debugger (dwwin.exe)
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/64124ee269edfdca9ee1e931/reports/75ca735a-0a02-49e2-9032-a493849874a8/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/4ea3d22ec69a4b7c9382037516b64d5eecc70e14423281ac2697c22ac7bfeb72
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:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/21c5af17-a2fd-4465-a47e-6fb7b58a6bc7
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1194629
Signature
Antivirus detection for URL or domain
Deletes itself after installation
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)
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
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses netsh to modify the Windows network and firewall settings
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 827530 Sample: Replacement_Mar_23.exe Startdate: 16/03/2023 Architecture: WINDOWS Score: 100 34 Snort IDS alert for network traffic 2->34 36 Malicious sample detected (through community Yara rule) 2->36 38 Antivirus detection for URL or domain 2->38 40 5 other signatures 2->40 8 Replacement_Mar_23.exe 3 2->8         started        process3 file4 22 C:\Users\user\...\Replacement_Mar_23.exe.log, ASCII 8->22 dropped 50 Injects a PE file into a foreign processes 8->50 12 Replacement_Mar_23.exe 8->12         started        signatures5 process6 signatures7 52 Modifies the context of a thread in another process (thread injection) 12->52 54 Maps a DLL or memory area into another process 12->54 56 Sample uses process hollowing technique 12->56 58 Queues an APC in another process (thread injection) 12->58 15 explorer.exe 2 1 12->15 injected process8 dnsIp9 24 ikroop.com 162.214.80.79, 49696, 49697, 80 UNIFIEDLAYER-AS-1US United States 15->24 26 monsupercafe.com 109.234.165.62, 49706, 80 O2SWITCHFR France 15->26 28 10 other IPs or domains 15->28 30 System process connects to network (likely due to code injection or exploit) 15->30 32 Uses netsh to modify the Windows network and firewall settings 15->32 19 netsh.exe 13 15->19         started        signatures10 process11 signatures12 42 Tries to steal Mail credentials (via file / registry access) 19->42 44 Tries to harvest and steal browser information (history, passwords, etc) 19->44 46 Deletes itself after installation 19->46 48 2 other signatures 19->48
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4ea3d22ec69a4b7c9382037516b64d5eecc70e14423281ac2697c22ac7bfeb72/
Threat name:
ByteCode-MSIL.Trojan.Tnega
Create hunting rule
Status:
Malicious
First seen:
2023-03-14 10:17:13 UTC
File Type:
PE (.Net Exe)
Extracted files:
15
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=j2r5elwgtjfxze4can2rnnsnl3wmodquiizidlbgs7bcvr575nza._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
238ea073d86c78c11f5a43a05a1109a247d1dd891d058c256cda1f953b85cf0b
Formbook
2d9311e19acadef4104d5e336f0f69156358bc8ad5dedac7432e60116b638a9d
Formbook
323f73b7cd367686fdc28a770469e6f6b3b1e45b6f375ef836bd3636880a102c
Formbook
3deb90aba1fd4484ac6b29a7e1bbbc65237d3c7abd3344edd8a94d1db6f213bc
Formbook
7b3eed5a83ba7d77cf91e87d1d200d0211fa8e3c9eaa557996ba9487023b28d3
Formbook
88d2524e19bca998130902c03348ee93d9408f35cfb4d09cd0b7a91a06f864db
Formbook
acb3694eed3ff5d171c272be0e30fb9efe6454b83ee523a33a8e64b89e0e2177
Formbook
b19623b40cdbb14fca2f11491ada3daeae0ed171b957148008c532c938b95b89
Formbook
be81f14108d40f1cefe1f68b86b50fa34457ccb564810b4a2d744e8d872526fe
Formbook
d37ac5f67be37a7cd0fa09b2d0ffb1e5190caf1abbb2183fd00b0c7a35a204b1
Formbook
+ 521 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/230315-218z3sab4y/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Checks computer location settings
Unpacked files
SH256 hash:
e8e28ca56eab480adb40a4c2e984d3b9b31a0ea78d0341022df0716d80ed5d8a
MD5 hash:
868ab400ff064c5825b52ef8d7031923
SHA1 hash:
0d3bd79d0be9dc61392141bed496d7461bf29611
Detections:
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/8fb267f7-f1ce-4395-a441-0239e99d642e/
Parent samples :
7d0f5a98613789c1f2ca5370d85e9b30348da8ce282ddbf9c5e53b1d3a05022d
4ea3d22ec69a4b7c9382037516b64d5eecc70e14423281ac2697c22ac7bfeb72
SH256 hash:
1edd47e2e51026f17de28c988c10f052d7b191bd48f5751d225bbaff924f7860
MD5 hash:
21ee6831c8b0c412a13a145e1866a19a
SHA1 hash:
67fed28cd8b8250344446b991fde9b103627ffbc
Link:
https://www.unpac.me/results/8fb267f7-f1ce-4395-a441-0239e99d642e/
SH256 hash:
ea8d4c91ec5bba5e1db6c17730d7ba5cdbb5ff3c1a777f70c90e91ce599d9b5d
MD5 hash:
27f5124bf8f451bca8d8a15c73c4f521
SHA1 hash:
5fd557e109b8fd1c3b362b64f0ba9f1600c07211
Link:
https://www.unpac.me/results/8fb267f7-f1ce-4395-a441-0239e99d642e/
SH256 hash:
3080a40fe5df21d4f5518140eb46f51adfd8b5060700b9fb85f5fbe42f179b75
MD5 hash:
dd5bfa3c66e0d6c05f9dc9c4d5df3f90
SHA1 hash:
01107cabf81b66757714bf8e7fee9975ae9f4ced
Link:
https://www.unpac.me/results/8fb267f7-f1ce-4395-a441-0239e99d642e/
SH256 hash:
4ea3d22ec69a4b7c9382037516b64d5eecc70e14423281ac2697c22ac7bfeb72
MD5 hash:
afa31e73d52ba5d7aeafe95a7b81d885
SHA1 hash:
a50cc769f6fdb1de712a29cdd37fa9123a382436
Link:
https://www.unpac.me/results/8fb267f7-f1ce-4395-a441-0239e99d642e/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4ea3d22ec69a/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.51
Link:
https://yomi.yoroi.company/submissions/4ea3d22ec69a4b7c9382037516b64d5eecc70e14423281ac2697c22ac7bfeb72

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_RawGitHub_URL
Create hunting rule
Author:ditekSHen
Description:Detects executables containing URLs to raw contents of a Github gist
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/374661/

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