MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6d85cd383dbbed1035c1df57065b22ab1855f9566674547018a8dc9a552b463c. 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: 6d85cd383dbbed1035c1df57065b22ab1855f9566674547018a8dc9a552b463c
SHA3-384 hash: 01ab75654fa00fbeeea58a342f8063c0a4b9157160e17801d64491f234f0a3484df9650bfc05431afa9243803db81762
SHA1 hash: 2ef96c7bf5c8a8b98a7cb4dd435a6a27d249f0d1
MD5 hash: 78ca91d1dfada6fe6995a9082fc97876
humanhash: iowa-oscar-steak-west
File name:131448R322INV.exe
Download: download sample
Signature Formbook
File size:762'880 bytes
First seen:2022-07-18 20:02:14 UTC
Last seen:2022-07-18 20:42:22 UTC
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:/H+Q2oYQx8Sz+EwH5z+2zp2quhv2rJABtw2igFc20MBHYZBxPsxSwdQZOOPzm:/v2oYQxHaEs621OBtw23FFlYsxSmQZOf
TLSH T163F40111F7D9E239F5FBABBC4BC4B4F47ABAF2221205F87A1DD12E4D4706A408A51139
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 GovCERT_CH
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
317
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
fareit formbook keylogger 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 very large strings
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to log keystrokes (.Net Source)
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)
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 detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 668602 Sample: 131448R322INV.exe Startdate: 18/07/2022 Architecture: WINDOWS Score: 100 31 www.khrishaoverseas.com 2->31 33 www.baintsras.com 2->33 35 khrishaoverseas.com 2->35 43 Snort IDS alert for network traffic 2->43 45 Multi AV Scanner detection for domain / URL 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 9 other signatures 2->49 11 131448R322INV.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\...\131448R322INV.exe.log, ASCII 11->29 dropped 61 Tries to detect virtualization through RDTSC time measurements 11->61 63 Injects a PE file into a foreign processes 11->63 15 131448R322INV.exe 11->15         started        signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 15->65 67 Maps a DLL or memory area into another process 15->67 69 Sample uses process hollowing technique 15->69 71 Queues an APC in another process (thread injection) 15->71 18 explorer.exe 15->18 injected process9 dnsIp10 37 www.wqhzs0476.com 162.214.234.146, 49845, 80 UNIFIEDLAYER-AS-1US United States 18->37 39 cluster02.fyhzks.com 20.205.38.175, 49834, 80 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 18->39 41 6 other IPs or domains 18->41 51 System process connects to network (likely due to code injection or exploit) 18->51 53 Performs DNS queries to domains with low reputation 18->53 22 control.exe 18->22         started        signatures11 process12 signatures13 55 Modifies the context of a thread in another process (thread injection) 22->55 57 Maps a DLL or memory area into another process 22->57 59 Tries to detect virtualization through RDTSC time measurements 22->59 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-07-14 06:02:29 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
18 of 26 (69.23%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Gathering data
Unpacked files
SH256 hash:
ee9ec9235d458bb33e41db184aa746585f7527f05d4aaa83717128e88c7670bf
MD5 hash:
a4668905f7f49315c266e588c0d01b14
SHA1 hash:
f5495dd27a3fd03c33e7ac38f26d944d14217804
Detections:
win_formbook_g0 win_formbook_auto
SH256 hash:
5e97ccd8dafcb36b3cb772f6a2fd425abcf221ab9ea1930e8c2618c95332f2c6
MD5 hash:
01800f6b045def8d90c649842f56d752
SHA1 hash:
f8434a4636d0772d01aac44bb3f9753a41f01d34
SH256 hash:
e6f55be1940928f2d6ad207c5b46272f97a3d134cec15acbdc0a7dd0a93a579b
MD5 hash:
4a0085eaabae5615093365eddfb53cd7
SHA1 hash:
040b882c67b3e3fc901d3ebf8eafa252343177df
SH256 hash:
6d85cd383dbbed1035c1df57065b22ab1855f9566674547018a8dc9a552b463c
MD5 hash:
78ca91d1dfada6fe6995a9082fc97876
SHA1 hash:
2ef96c7bf5c8a8b98a7cb4dd435a6a27d249f0d1
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.

Malspam

Formbook

Executable exe 6d85cd383dbbed1035c1df57065b22ab1855f9566674547018a8dc9a552b463c

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment

Comments