MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b3a18bdc77b3fdfddbb70867d97fafeaaba9397c308e4b41bf54531f579d809b. 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 2 File information Comments

SHA256 hash: b3a18bdc77b3fdfddbb70867d97fafeaaba9397c308e4b41bf54531f579d809b
SHA3-384 hash: 9720b72b2797610c3b4ce40827eba86af667695e0d7025882771f0dea93fe101072aa209455022532704184a4bb4cf3a
SHA1 hash: 6bb011dcea62bff3f01c2de0eafb5d97d01ead5a
MD5 hash: 048493920d36e782cfd297fbf380c64a
humanhash: maine-timing-whiskey-lamp
File name:TELEX BL.exe
Download: download sample
Signature Formbook
File size:905'728 bytes
First seen:2022-09-25 20:19:38 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:Ff4erm4Yv+g7PKejB8XQ8WF+BZjcHEQV:Ff4/+g7PWAbuZgkq
TLSH T14815AE17316E870EC969A670B8B1E2306F94AF97425AC14E78DCFC7FB13614C6DA12E1
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon ecec889ce6d8e8f0 (40 x Formbook, 21 x AgentTesla, 12 x SnakeKeylogger)
Reporter Anonymous
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
273
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Launching the process to change network settings
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
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.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Deletes itself after installation
Injects a PE file into a foreign processes
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
Performs DNS queries to domains with low reputation
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)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 709550 Sample: TELEX BL.exe Startdate: 25/09/2022 Architecture: WINDOWS Score: 100 31 www.btc-lab.xyz 2->31 37 Snort IDS alert for network traffic 2->37 39 Multi AV Scanner detection for domain / URL 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 8 other signatures 2->43 9 TELEX BL.exe 3 2->9         started        signatures3 process4 file5 23 C:\Users\user\AppData\...\TELEX BL.exe.log, ASCII 9->23 dropped 53 Injects a PE file into a foreign processes 9->53 13 TELEX BL.exe 9->13         started        signatures6 process7 signatures8 55 Modifies the context of a thread in another process (thread injection) 13->55 57 Maps a DLL or memory area into another process 13->57 59 Sample uses process hollowing technique 13->59 61 Queues an APC in another process (thread injection) 13->61 16 explorer.exe 13->16 injected process9 dnsIp10 25 alg-maintenance-hub.com 162.241.194.88, 49718, 49719, 80 UNIFIEDLAYER-AS-1US United States 16->25 27 halloweenoncentral2.com 162.241.217.144, 49701, 80 UNIFIEDLAYER-AS-1US United States 16->27 29 22 other IPs or domains 16->29 33 System process connects to network (likely due to code injection or exploit) 16->33 35 Performs DNS queries to domains with low reputation 16->35 20 rundll32.exe 13 16->20         started        signatures11 process12 signatures13 45 Tries to steal Mail credentials (via file / registry access) 20->45 47 Tries to harvest and steal browser information (history, passwords, etc) 20->47 49 Deletes itself after installation 20->49 51 2 other signatures 20->51
Threat name:
ByteCode-MSIL.Spyware.SnakeLogger
Status:
Malicious
First seen:
2022-09-20 06:40:20 UTC
File Type:
PE (.Net Exe)
Extracted files:
17
AV detection:
19 of 26 (73.08%)
Threat level:
  2/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:ne8w rat spyware stealer trojan
Behaviour
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
Suspicious use of SetThreadContext
Checks computer location settings
Reads user/profile data of web browsers
Blocklisted process makes network request
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
b1660291469b789ac08f836fa25387bc1174b98c84c9e656b0e7bdf40f5437f4
MD5 hash:
814d99d0ef74cd1812260379e3e95a26
SHA1 hash:
4427e7d73d7bdff789baa602c99f8c47f76e1aa8
Detections:
XLoader win_formbook_auto win_formbook_g0
SH256 hash:
7679b5ac03281c4d53d75402e67cdb897af18a75f2c9370c2339e6432e10b2bd
MD5 hash:
4349bdd4b6c37dc76c5f4372ccb54261
SHA1 hash:
d56ea2696ce8af706c83d71e8a52703e8945d32e
SH256 hash:
c7bc3a75337ca215d01ee6a456f888fbb4484fe4068f3acce9fd6256b2551ff0
MD5 hash:
38a531e4f8092c425f3877f488d981d9
SHA1 hash:
bb9875784d55fb6836009bd5be969cae943f4051
SH256 hash:
44c50087cbd9a86677ff5b898c1ad52abf5f25297179a174edcc8b81dec967fc
MD5 hash:
d012ba9057bf67c7f29871326f2af919
SHA1 hash:
1d5b8b512b37f0e1900496b578117082929654c7
SH256 hash:
e20ec8f3c957bcb6a194ef688bae8af2015cfffb20e7baf8b2114d7b70ade4ee
MD5 hash:
35cb29046968faca7f3f3b4463449b6c
SHA1 hash:
088c8c30ec1bece0a4b5bbfe3982b073f8b95598
SH256 hash:
b3a18bdc77b3fdfddbb70867d97fafeaaba9397c308e4b41bf54531f579d809b
MD5 hash:
048493920d36e782cfd297fbf380c64a
SHA1 hash:
6bb011dcea62bff3f01c2de0eafb5d97d01ead5a
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Comments