MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f9c4add410b55fb7a5b176a3f71761bbdc6b138f6e7a2f1e39f8ee094dd3b992. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f9c4add410b55fb7a5b176a3f71761bbdc6b138f6e7a2f1e39f8ee094dd3b992
SHA3-384 hash: c2ee45536a811778cd578c0557310908eeac69904d8e7bc6b701290a4c40a21917319500c29e35cef4b4af289e31bc1b
SHA1 hash: db569b4a8392fe1354dafa0a8b188f2f52538f1b
MD5 hash: 6c8e6bc7c96c1e340c637b2de5828f1e
humanhash: arkansas-xray-autumn-moon
File name:22082023_dekont.pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:815'104 bytes
First seen:2023-08-22 07:49:44 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 24576:4T6d2Rx/J3wTjTVb/dLJCpcFOyapE8Zor:K6dyhJ3Q3VbLEN12GU
Threatray 3'063 similar samples on MalwareBazaar
TLSH T1C6058BC0E2BADBD3D5BA53F5245106000F767ECAB569E2544EA270E935F5B402B83A3F
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 abuse_ch
Tags:exe FormBook geo TUR

Intelligence

File Origin
# of uploads :
1
# of downloads :
292
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
22082023_dekont.pdf.exe
Verdict:
Malicious activity
Analysis date:
2023-08-22 08:10:04 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/93d0dd14-2875-4d77-a5b5-d837826b9c1b

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/444098/
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a process with a hidden window
Launching a process
Restart of the analyzed sample
Adding an exclusion to Microsoft Defender
Gathering data
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/f9c4add410b55fb7a5b176a3f71761bbdc6b138f6e7a2f1e39f8ee094dd3b992
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/93aed806-7973-47e8-ae3f-f03240c72674
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1294978
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
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 dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses an obfuscated file name to hide its real file extension (double extension)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1294978 Sample: 22082023_dekont.pdf.exe Startdate: 22/08/2023 Architecture: WINDOWS Score: 100 57 Snort IDS alert for network traffic 2->57 59 Malicious sample detected (through community Yara rule) 2->59 61 Antivirus detection for URL or domain 2->61 63 8 other signatures 2->63 9 22082023_dekont.pdf.exe 7 2->9         started        13 QLQAZCva.exe 5 2->13         started        process3 file4 47 C:\Users\user\AppData\Roaming\QLQAZCva.exe, PE32 9->47 dropped 49 C:\Users\user\AppData\Local\...\tmp7D43.tmp, XML 9->49 dropped 73 Uses schtasks.exe or at.exe to add and modify task schedules 9->73 75 Adds a directory exclusion to Windows Defender 9->75 15 22082023_dekont.pdf.exe 9->15         started        18 powershell.exe 21 9->18         started        20 schtasks.exe 1 9->20         started        22 22082023_dekont.pdf.exe 9->22         started        77 Multi AV Scanner detection for dropped file 13->77 79 Machine Learning detection for dropped file 13->79 81 Injects a PE file into a foreign processes 13->81 24 schtasks.exe 1 13->24         started        26 QLQAZCva.exe 13->26         started        signatures5 process6 signatures7 87 Maps a DLL or memory area into another process 15->87 89 Queues an APC in another process (thread injection) 15->89 28 zuWDcYcciCJpePmvpYqVN.exe 15->28 injected 30 conhost.exe 18->30         started        32 conhost.exe 20->32         started        34 conhost.exe 24->34         started        process8 process9 36 cmmon32.exe 13 28->36         started        39 autoconv.exe 28->39         started        signatures10 65 Tries to steal Mail credentials (via file / registry access) 36->65 67 Tries to harvest and steal browser information (history, passwords, etc) 36->67 69 Modifies the context of a thread in another process (thread injection) 36->69 71 Maps a DLL or memory area into another process 36->71 41 explorer.exe 2 1 36->41 injected 45 zuWDcYcciCJpePmvpYqVN.exe 36->45 injected process11 dnsIp12 51 hhcred23.buzz 193.111.62.197, 49779, 49780, 49781 VPS-UA-ASUA Ukraine 41->51 53 www.rssnewscast.com 91.195.240.94, 49774, 49775, 49776 SEDO-ASDE Germany 41->53 55 12 other IPs or domains 41->55 83 System process connects to network (likely due to code injection or exploit) 41->83 85 Performs DNS queries to domains with low reputation 41->85 signatures13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f9c4add410b55fb7a5b176a3f71761bbdc6b138f6e7a2f1e39f8ee094dd3b992/
Threat name:
Win32.Trojan.Swotter
Create hunting rule
Status:
Malicious
First seen:
2023-08-22 07:50:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
26
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7hck3vaqwvp3pjnro2r7of3bxpogwe4pnz5c6hrz7dxastotxgja._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
agenttesla
Create hunting rule
Similar samples:
098ffd461615734bfd5dbf239b55879a23d7a4b79665fbeca75d1bd01ca9f0e2
Formbook
3a83557cf45393e6008e0a885f79cb7f904f31d8cde2d42c227c1ce41e28b832
Formbook
3c11fa854cd456fac1f3719d3954bcfc4657437defd8d73f234b16805d121897
Formbook
5d35bb95e95e3e166b00362d93f852af93448a4039894bbe25a55e79b29084d8
Formbook
91c69e984e53cc30d77e21fcb1a44044fff62368ee2740f04b3b26bfb82f2967
Formbook
9469fcaa1fdedbca5dea10fbc8908e549bd80111eebeb817b1f74d6355fdff66
Formbook
959b7b3c7962cbd8e88c0f342f370258244ab2a396ebd6abf26389020baf9a4c
Formbook
be5865003adbc95c7e54322d9245dd94eff8403d2f3bd580de5e170efe25e580
Formbook
d3fe4fbe955c26eb8ea6cb273a7102168e27bbfbf86cfbd5f9e1eaa3023e231f
Formbook
f281fed414237c484d936802d8bc112995ba6df5c9485207a284b8fc31edf2e6
Formbook
+ 3'053 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/230822-jpac9scc7t/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
b4ca3a7af2137e6471f822cf7ae765db8716890ee8212a56f7dc65689f281687
MD5 hash:
e43b1bf572e4125421be77bbb578e0e6
SHA1 hash:
67965b1a6f8e38daa37f6b26245b426fdf2cfc16
Detections:
win_formbook_w0
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/c8f59fba-6e6b-49cc-ab26-2410efc2da58/
Parent samples :
71f17fcf7ab7d74c32f6a1ed20f4315805847ebc6402b808ffe3fd42d0950cb5
f9c4add410b55fb7a5b176a3f71761bbdc6b138f6e7a2f1e39f8ee094dd3b992
b184755ffe990f3f5ab51c4d7b2bc1e4ec8f1839a4b9187dad2167c585018a37
SH256 hash:
9d231f4a38669cd88c9122ec387b1ea01e5c151a4d4b5df7d2167c2ee5a9ae89
MD5 hash:
88952f66fd4eeac38eff4aa5ee775c21
SHA1 hash:
d18306823c3be272b6eaa262222d3637f724d229
Link:
https://www.unpac.me/results/c8f59fba-6e6b-49cc-ab26-2410efc2da58/
SH256 hash:
2ac2f55e15fd8da559f99925ceee9166ca978e94cbc53a5cb29bf02d0a76ac7f
MD5 hash:
1081db0b25581c7958e6fbff4d9aa64a
SHA1 hash:
bcb0e0fe844884a5b0d05cd3b0cc5fd7a5ff53b9
Link:
https://www.unpac.me/results/c8f59fba-6e6b-49cc-ab26-2410efc2da58/
SH256 hash:
6b959869f767cbed167d5169ef0f2375ea56e202a0a8ac8dbb8f05cd1eae661e
MD5 hash:
e845de7a4cd00244a0f9446be285469b
SHA1 hash:
9749766f00920445091f6b27306bf09be01c0ae5
Link:
https://www.unpac.me/results/c8f59fba-6e6b-49cc-ab26-2410efc2da58/
SH256 hash:
d2b47e3eee544f9b9b9bf1fa1d053ff8b7ef2650ca1e78bb8955bfb35d6a9e06
MD5 hash:
42f30527b3c0a2cf546b6ffe1a33326d
SHA1 hash:
6cabafe89171f6ce1d22388b4e284a90cfdd92a5
Link:
https://www.unpac.me/results/c8f59fba-6e6b-49cc-ab26-2410efc2da58/
SH256 hash:
f9c4add410b55fb7a5b176a3f71761bbdc6b138f6e7a2f1e39f8ee094dd3b992
MD5 hash:
6c8e6bc7c96c1e340c637b2de5828f1e
SHA1 hash:
db569b4a8392fe1354dafa0a8b188f2f52538f1b
Link:
https://www.unpac.me/results/c8f59fba-6e6b-49cc-ab26-2410efc2da58/
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/f9c4add410b55fb7a5b176a3f71761bbdc6b138f6e7a2f1e39f8ee094dd3b992

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:NET
Create hunting rule
Author:malware-lu
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 f9c4add410b55fb7a5b176a3f71761bbdc6b138f6e7a2f1e39f8ee094dd3b992

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/444098/

Comments