MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2623307d8f5a6a10079cc65e8e4ffdeace7795a5edf2f9a85041d995f6073530. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2623307d8f5a6a10079cc65e8e4ffdeace7795a5edf2f9a85041d995f6073530
SHA3-384 hash: 9115d3a4a497b54c9824c8e3285d79553348f5aeefb6f82ca6aefe1711d2f289dae9706eb39e9b2de1d3ef65a2ba7272
SHA1 hash: 6f356fb8c6c49a38048a5085a4571b7d63e12917
MD5 hash: 92c9828add846df0fbf23d72d861b1f7
humanhash: uniform-stream-sink-oven
File name:SecuriteInfo.com.Win32.RATX-gen.14769.18349
Download: download sample
Signature Formbook
Create hunting rule
File size:2'292'736 bytes
First seen:2022-11-05 09:30:52 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'643 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 49152:mN08h6fdP7SqHulzWJ/e/6HqI0tEuLeZGvyfsF:mNR6f57JuhWHHqIyEVIyf
Threatray 15'710 similar samples on MalwareBazaar
TLSH T18FB5D04023627A4CCD825537299AF269F177CEDE8E26FCED46107C2B5ABA285413FC5C
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% (.EXE) Win16/32 Executable Delphi generic (2072/23)
File icon (PE):PE icon
dhash icon 00870d1848c4cc20 (27 x RemcosRAT, 6 x Formbook, 1 x NanoCore)
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
223
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SecuriteInfo.com.Win32.RATX-gen.14769.18349
Verdict:
Malicious activity
Analysis date:
2022-11-05 09:32:16 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/605438de-ea79-4388-b17d-e8ea9faf4404

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/329014/
Detection(s):
SecuriteInfo.com.Win32.RATX-gen.14769.18349.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Sending a custom TCP request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/63662d5915611f8d8bf8faca/reports/77e5d769-9f27-480f-b5a0-212e010166f7/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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/adc21afd-fd0f-4cb6-ab99-f98ea2f43200
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1106074
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates multiple autostart registry keys
Encrypted powershell cmdline option found
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
Sample uses process hollowing technique
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 738738 Sample: SecuriteInfo.com.Win32.RATX... Startdate: 05/11/2022 Architecture: WINDOWS Score: 100 48 Malicious sample detected (through community Yara rule) 2->48 50 Antivirus detection for URL or domain 2->50 52 Antivirus / Scanner detection for submitted sample 2->52 54 5 other signatures 2->54 7 Dfeswcqmsz.exe 2 2->7         started        10 SecuriteInfo.com.Win32.RATX-gen.14769.18349.exe 1 5 2->10         started        13 Dfeswcqmsz.exe 1 2->13         started        process3 file4 56 Antivirus detection for dropped file 7->56 58 Machine Learning detection for dropped file 7->58 60 Encrypted powershell cmdline option found 7->60 15 Dfeswcqmsz.exe 7->15         started        18 powershell.exe 12 7->18         started        20 Dfeswcqmsz.exe 7->20         started        32 3 other processes 7->32 42 C:\Users\user\AppData\...\Dfeswcqmsz.exe, PE32 10->42 dropped 44 C:\Users\...\Dfeswcqmsz.exe:Zone.Identifier, ASCII 10->44 dropped 46 SecuriteInfo.com.W...14769.18349.exe.log, ASCII 10->46 dropped 62 Creates multiple autostart registry keys 10->62 64 Injects a PE file into a foreign processes 10->64 22 powershell.exe 16 10->22         started        24 SecuriteInfo.com.Win32.RATX-gen.14769.18349.exe 10->24         started        26 Dfeswcqmsz.exe 13->26         started        28 wlanext.exe 13->28         started        30 powershell.exe 13 13->30         started        signatures5 process6 signatures7 66 Maps a DLL or memory area into another process 15->66 68 Sample uses process hollowing technique 15->68 34 conhost.exe 18->34         started        36 conhost.exe 22->36         started        38 explorer.exe 26->38 injected 70 Creates multiple autostart registry keys 28->70 40 conhost.exe 30->40         started        process8
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/2623307d8f5a6a10079cc65e8e4ffdeace7795a5edf2f9a85041d995f6073530/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2022-11-05 09:31:13 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=eyrta7mpljvbab44yzpi4t755lhhpfnf5xzptkcqihmzl5qhguya._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
masslogger
Create hunting rule
Similar samples:
1568ed9366bd6a4dfaa68fb2dd6bfe64029f379108ca2975ea18de63e70b90e7
Formbook
167f095c678aad5d26949f46d21bd2bc07744b09968d780e310484b42404580e
Formbook
2a120e17b0bdb650b18850d94ed56e7591ca7e3d3ae30a9d34e27e898b871682
Formbook
5c2656c838e9a793b1385f97da2b8ce2671c26bfb2863f3fdb4cef89ed94fc4c
Formbook
8dc1a6e1fdccf0a3636a3259e32a5979c477dc85b387ca13e7dc95b01bed2c63
Formbook
b24fbc3057f54fc0facdd4da5d0a4e4a340af76a32fdc2074cd7545838a0db08
Formbook
b48856a716e4d78090c3375b66d87b4916fd3993d1b77ef4f4a95de738a4e62f
Formbook
c07f4c28e541e393b16e1ffe6128d914a106f3c65fbd88a956ebe73049da0489
Formbook
f19194db51041a65312a23df91f04eb825bfd8e64ae42db39aa3ba670b59f4ba
Formbook
+ 15'700 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:fbce persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/221105-lg2hwsfah6/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Formbook
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/07b6195c-675f-4a45-8aa3-19106e935dde
Unpacked files
SH256 hash:
fe7dd3009e01e6c42cc4206b66f24dc580e59dfc5f10ed0520cf6453da876f08
MD5 hash:
4100b0b0e4175557da9158d652bb758b
SHA1 hash:
2bd6e7c6839062200f170c32640f1b48dffdfd15
Detections:
XLoader
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/4c350652-b203-43ea-a374-681d8d13f141/
Parent samples :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 hash:
5b6775eb9cc741aff04f78a75f2456223c52f5aa6cd686ddaa4cb0206a51fbc3
MD5 hash:
dc060082bea4c4bd8a7f76f05749ba79
SHA1 hash:
300c1a90f84eae0ee87033d75fb29264c67fd10b
Link:
https://www.unpac.me/results/4c350652-b203-43ea-a374-681d8d13f141/
SH256 hash:
74d35996dc0f7c4fbaaf64b2ee1b0aa78984d7cca4b368988261b2f34f9a4797
MD5 hash:
a65224ed817462eb1fec9fd3c48190c4
SHA1 hash:
40058d862e56ffa8ddd6c634679eacef9a0118cb
Link:
https://www.unpac.me/results/4c350652-b203-43ea-a374-681d8d13f141/
SH256 hash:
2623307d8f5a6a10079cc65e8e4ffdeace7795a5edf2f9a85041d995f6073530
MD5 hash:
92c9828add846df0fbf23d72d861b1f7
SHA1 hash:
6f356fb8c6c49a38048a5085a4571b7d63e12917
Link:
https://www.unpac.me/results/4c350652-b203-43ea-a374-681d8d13f141/
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/2623307d8f5a6a10079cc65e8e4ffdeace7795a5edf2f9a85041d995f6073530

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/329014/

Comments