MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9bfbca223cfe1d4ad139cc89861b6dfb09d24a63c24f3291a4af0508e03ee8b6. 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: 9bfbca223cfe1d4ad139cc89861b6dfb09d24a63c24f3291a4af0508e03ee8b6
SHA3-384 hash: 7ca06a22b50a73c93c3897192e150f21545d7527ed004a897be16f22bdaaa149480f25b4e035bd90fc1fbcc9eaeeda6e
SHA1 hash: cfdb3bb715f23e1f1740ea12abf6227a8e1082f3
MD5 hash: 25a5d670a9db3a48b23eea0953251fc8
humanhash: butter-oranges-tennis-massachusetts
File name:rn resmi.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:950'272 bytes
First seen:2022-09-06 09:03:23 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 12288:jeOF1HZmn3Lg+H0+sAKO9z9pRXC9DWKx4Ja5VXDKk93zGaybN:V35c7g1A/NQ9WKx4Jann5zGnN
TLSH T111152B0B21D40965C83251FCA4CCC5735BAA9E45E53BC949BFCA9CEFF192F6C42D22A1
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 lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
262
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
rn resmi.exe
Verdict:
Malicious activity
Analysis date:
2022-09-06 09:03:56 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/2d87b09b-40e5-4946-8263-3a43a68430cb

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/308115/
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.3673.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Sending a custom TCP request
Creating a process from a recently created file
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/63170d05b00f73916cbe7a18/reports/679ca4dd-0be1-48a2-a819-582ab0592f26/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/f189282b-b1bd-402f-b0e5-bcac6ee2c036
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1065508
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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 detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/9bfbca223cfe1d4ad139cc89861b6dfb09d24a63c24f3291a4af0508e03ee8b6/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-09-06 09:04:11 UTC
File Type:
PE (.Net Exe)
Extracted files:
25
AV detection:
17 of 26 (65.38%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=tp54uir47youvujzzseymg3n7me5estdyjhtfenev4cqryb65c3a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:j02y rat spyware stealer trojan
Link:
https://tria.ge/reports/220906-k1k5ksfedj/
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:
dcd27394f2514ac52ec01714aeaedc229566f8186d483a773b5b10c92f04507d
MD5 hash:
a5e75127ae0ae177eab8e16db62a3fbf
SHA1 hash:
7d86d776928ffd7baef8dd97c5e986839eed31b8
Detections:
FormBook
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/cb533449-6446-42fc-bcf2-fac539255b94/
Parent samples :
c8a52cd96047db62def2fc5fa5b631751d4444388918a42bbb8dcd0ba3e025ed
d113b8df1237a3474a5119bf06172685a1cfc408759805a58210b29813289585
6f1d836fbe2110685eecb1042c24923e8764680cb21b0bdf7d0f151a6c1f0b1a
4e16775a285e8a96981cfcf573df8127cce0602281911255ac3c706323ec0091
9bfbca223cfe1d4ad139cc89861b6dfb09d24a63c24f3291a4af0508e03ee8b6
4f8105ba43ad52ffeb0e14fdb0ebce3e902c6386d9e60b72e6bb3c260e407a54
SH256 hash:
8b533ffaed24e0351e489b14aaac6960b731db189ce7ed0c0c02d4a546af8e63
MD5 hash:
dbc7be56e6e32349315170599c8b333f
SHA1 hash:
d8e5840e3574b87d435e55a65ac648e040871aee
Link:
https://www.unpac.me/results/cb533449-6446-42fc-bcf2-fac539255b94/
SH256 hash:
c47983a759a9469cd66f435dbfc84900f946dc12240b148772049b4cb9e72e16
MD5 hash:
c28c0ff60319d45b145b9a07c78b64f8
SHA1 hash:
d2af0fdb9724e7676754ffaf427bab3b507e10a6
Link:
https://www.unpac.me/results/cb533449-6446-42fc-bcf2-fac539255b94/
SH256 hash:
88f22a45bfb827046d89eb320b829720b5da21f6b52d4e7be4cf31c0085af7fe
MD5 hash:
21a092e16a36e8e85070fb574c22907c
SHA1 hash:
785fd8be1bbf34944cebf5bf3e0fc49f87df84d2
Link:
https://www.unpac.me/results/cb533449-6446-42fc-bcf2-fac539255b94/
SH256 hash:
9b4aee132a0228378d66a57fda3a2030952309ef74cf2db724ac916b04d8c034
MD5 hash:
93c6391d23c1aa1ed66fb13f82f2ee31
SHA1 hash:
220098c3047c32b51ae13a5cc1e9beeef3da6e18
Link:
https://www.unpac.me/results/cb533449-6446-42fc-bcf2-fac539255b94/
SH256 hash:
9bfbca223cfe1d4ad139cc89861b6dfb09d24a63c24f3291a4af0508e03ee8b6
MD5 hash:
25a5d670a9db3a48b23eea0953251fc8
SHA1 hash:
cfdb3bb715f23e1f1740ea12abf6227a8e1082f3
Link:
https://www.unpac.me/results/cb533449-6446-42fc-bcf2-fac539255b94/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/9bfbca223cfe/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/9bfbca223cfe1d4ad139cc89861b6dfb09d24a63c24f3291a4af0508e03ee8b6

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:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
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 9bfbca223cfe1d4ad139cc89861b6dfb09d24a63c24f3291a4af0508e03ee8b6

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/308115/

Comments