MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4c61906e1b2ad899fb297c820fbf23a556cb2ab5785ba916ffdc7438c2c0414f. 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 3 File information Comments
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SHA256 hash: 4c61906e1b2ad899fb297c820fbf23a556cb2ab5785ba916ffdc7438c2c0414f
SHA3-384 hash: c469995d16b527dc8b3a8754ed5d1d13b5434f1539113d282fbcae62831a739e11e8262dbb2a78010279a33637cdbc9b
SHA1 hash: ad03f622a3847ab10e817aa27b9645c9677e3fe9
MD5 hash: e64867f85203d8751e2350d021cb9b1d
humanhash: oklahoma-bravo-north-india
File name:IMG_3602.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:398'912 bytes
First seen:2022-07-11 09:02:35 UTC
Last seen:2022-07-18 08:15:03 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:traFd1muUh2s8lywz1q3r46p3ErHcGV+1aiN+3KelEYAKidF5w/:5a/1Sh2owz8JpSHcGV+elEYAKidF2
Threatray 1'445 similar samples on MalwareBazaar
TLSH T18C847B4BB64C77CECA17C97179B45D34AA10AF67571A8213B0C3ED6C8A6C58FAF041E2
TrID 69.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.9% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 6ccccc9cc4d8e8f4 (41 x Formbook, 34 x AgentTesla, 3 x AveMariaRAT)
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
216
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/286071/
Detection(s):
SecuriteInfo.com.Trojan0056a1fe1.12125.6968.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Sending a custom TCP request
Launching a process
Creating a file
Сreating synchronization primitives
Launching the process to change network settings
Launching cmd.exe command interpreter
Searching for synchronization primitives
Reading critical registry keys
DNS request
Sending an HTTP GET request
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
overlay packed
Link:
https://www.filescan.io/uploads/62cbe75322051a09ca7153fb/reports/1cde4849-1403-44ca-abe4-54ccd27e3ad0/overview
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/47290cb5-d75d-4481-a423-702cce95ed22
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1028982
Signature
.NET source code references suspicious native API functions
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected potential unwanted application
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Initial sample is a PE file and has a suspicious name
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 domain / URL
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 661474 Sample: IMG_3602.exe Startdate: 11/07/2022 Architecture: WINDOWS Score: 100 29 Multi AV Scanner detection for domain / URL 2->29 31 Malicious sample detected (through community Yara rule) 2->31 33 Antivirus detection for URL or domain 2->33 35 8 other signatures 2->35 10 IMG_3602.exe 1 2->10         started        process3 file4 27 C:\Users\user\AppData\...\IMG_3602.exe.log, ASCII 10->27 dropped 13 cvtres.exe 10->13         started        process5 signatures6 43 Modifies the context of a thread in another process (thread injection) 13->43 45 Maps a DLL or memory area into another process 13->45 47 Sample uses process hollowing technique 13->47 49 2 other signatures 13->49 16 explorer.exe 13->16 injected process7 process8 18 raserver.exe 16->18         started        signatures9 37 Modifies the context of a thread in another process (thread injection) 18->37 39 Maps a DLL or memory area into another process 18->39 41 Tries to detect virtualization through RDTSC time measurements 18->41 21 cmd.exe 1 18->21         started        23 explorer.exe 155 18->23         started        process10 process11 25 conhost.exe 21->25         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4c61906e1b2ad899fb297c820fbf23a556cb2ab5785ba916ffdc7438c2c0414f/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-07-08 00:23:57 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jrqza3q3flmjt6zjpsba7pzduvlmwkvvpbn2sfx73r2drqwaifhq._file
Verdict:
malicious
Similar samples:
044ae0d297d6156d51d68de2c94b9ce78b3954a99e374a199c225f2272479d34
Formbook
119d234e1f826adac6d68a614251fb9d1a20a4368102068ea030731372546f3c
Formbook
4291277336e3c27f2cc05278635f7724fa2ff4af06a547ca5a04ac91c3d71fa0
Formbook
4a2e8f13ad2ce022158574edb3ab566db4544ec1dcda648845b16bc754f4e321
Formbook
950a7326c17a7d8d5eefd99b7df2771f6fd3a5a4942ec2f25252c73e02deecf0
Formbook
98cfc2f76ee8cefd9aa0b9be4c317800223f93ffb6e63577e8a9466693585515
Formbook
c005d98eb3a32962f937a87c96ee4f656e9f62d83afdf47b803391071800b292
Formbook
d0be07347ce319cbce0fa252c4a030834dafe118c2ea50a6e05951ecf06b20da
Formbook
ecbd46c265b67d75964db9233ccd1f26710d56ab7f649845e44f59d55db4251b
Formbook
+ 1'435 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:xloader campaign:tn61 loader persistence rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220711-kz1tmsaad3/
Behaviour
Enumerates system info in registry
Modifies Internet Explorer settings
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
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of web browsers
Xloader payload
Formbook
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
Unpacked files
SH256 hash:
c255e016dab3d29f31f8ab97b4a51e424267fd456a7a7b1fad5610b4c2b97fc0
MD5 hash:
dc42037bc83489ba6ac2513a184590c3
SHA1 hash:
26e3e9e7a3d125b7c9926a11ffcf61b8f4d5f405
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
XLoader
Create hunting rule
Link:
https://www.unpac.me/results/a81eb216-c552-43a0-93cd-677372060256/
Parent samples :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 hash:
40efd0ad3b71562744a16a7d8fd2f001c81969b770a760d458323cd8b81e3839
MD5 hash:
e54aabfa908bb09ff8d373d4ae2e73cc
SHA1 hash:
ce91233c2732a234c86ac36aea83077d40452ba8
Link:
https://www.unpac.me/results/a81eb216-c552-43a0-93cd-677372060256/
SH256 hash:
e248e9e6b48ff77f64e7ebefdc0b05534ea9b01a265d128d7df57d6669b4ad0b
MD5 hash:
faa1ca3723ef1beba1602078f3745a04
SHA1 hash:
c5c4cb60f5461015da46681d456888fe44176592
Link:
https://www.unpac.me/results/a81eb216-c552-43a0-93cd-677372060256/
SH256 hash:
4c61906e1b2ad899fb297c820fbf23a556cb2ab5785ba916ffdc7438c2c0414f
MD5 hash:
e64867f85203d8751e2350d021cb9b1d
SHA1 hash:
ad03f622a3847ab10e817aa27b9645c9677e3fe9
Link:
https://www.unpac.me/results/a81eb216-c552-43a0-93cd-677372060256/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4c61906e1b2a/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/4c61906e1b2ad899fb297c820fbf23a556cb2ab5785ba916ffdc7438c2c0414f

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_EXE_Packed_ConfuserEx
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with ConfuserEx Mod
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 4c61906e1b2ad899fb297c820fbf23a556cb2ab5785ba916ffdc7438c2c0414f

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/286071/

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