MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b359375e9ac1bbd90bcb60c5fc6834d8a12ee2f4aadb34a001bda42a1c93b228. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b359375e9ac1bbd90bcb60c5fc6834d8a12ee2f4aadb34a001bda42a1c93b228
SHA3-384 hash: 49f07576667ca2cd7b6aef6be4a80504b14bab282f2dfb2b925d4f3f22039f963e1aea6c0e4ec33d05fd749aaf8a4472
SHA1 hash: a20c002a4516795af98eb4d8db1b91d98e1a922a
MD5 hash: cff2a60348a646f0ba281371e8dde73b
humanhash: robert-butter-london-coffee
File name:cff2a60348a646f0ba281371e8dde73b
Download: download sample
Signature Formbook
Create hunting rule
File size:1'089'024 bytes
First seen:2022-06-22 07:32:55 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 24576:i1YivcYiOw9F0vw9FEY9lw9FDiXHYwayg/PAhwcYiOw9F0cYiDw9F0cYiOw9F002:iFvSOGGvGDlGhiXHCyg/YhVOGGSDGGSW
TLSH T1BA35F1E2FA4062F1CC3F4577753748611B776DFE92F9E90A1DC6738609916228A2BC0B
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 e0c4a696969ac4f0 (13 x Formbook, 1 x GuLoader)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
222
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/282221/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Unauthorized injection to a recently created process
Creating a file
Sending a custom TCP request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
75%
Tags:
packed
Link:
https://www.filescan.io/uploads/62b2c5f462d792dc573c00d1/reports/fffed3e6-bff9-4457-bf8e-3fd89d610e52/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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/07fd7d8a-0576-4ccd-a387-b64ce4258453
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1017713
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses netsh to modify the Windows network and firewall settings
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 650208 Sample: 8muVeA2jSc Startdate: 22/06/2022 Architecture: WINDOWS Score: 100 33 Malicious sample detected (through community Yara rule) 2->33 35 Antivirus detection for URL or domain 2->35 37 Multi AV Scanner detection for submitted file 2->37 39 6 other signatures 2->39 10 8muVeA2jSc.exe 3 2->10         started        process3 file4 29 C:\Users\user\AppData\...\8muVeA2jSc.exe.log, ASCII 10->29 dropped 47 Tries to detect virtualization through RDTSC time measurements 10->47 14 8muVeA2jSc.exe 10->14         started        signatures5 process6 signatures7 49 Modifies the context of a thread in another process (thread injection) 14->49 51 Maps a DLL or memory area into another process 14->51 53 Sample uses process hollowing technique 14->53 55 Queues an APC in another process (thread injection) 14->55 17 explorer.exe 14->17 injected process8 signatures9 31 Uses netsh to modify the Windows network and firewall settings 17->31 20 netsh.exe 17->20         started        process10 signatures11 41 Modifies the context of a thread in another process (thread injection) 20->41 43 Maps a DLL or memory area into another process 20->43 45 Tries to detect virtualization through RDTSC time measurements 20->45 23 cmd.exe 1 20->23         started        25 explorer.exe 110 20->25         started        process12 process13 27 conhost.exe 23->27         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b359375e9ac1bbd90bcb60c5fc6834d8a12ee2f4aadb34a001bda42a1c93b228/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-06-22 07:33:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
69
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wnmtoxu2yg55sc6lmdc7y2bu3cqs5yxuvlntjiabxwscuhetwiua._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:ip4t loader rat
Link:
https://tria.ge/reports/220622-jevapaafam/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Unpacked files
SH256 hash:
7e790c000d1a7fdc3c0ab50fb7d2c1938272cd106590f3526d26c9ad01f1d9a5
MD5 hash:
a8dd35c8416e1951a21ccdb95d96c4ae
SHA1 hash:
961665c421906b7718c48c446ee74ed77c882f50
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/5ab14f0e-0203-4296-9475-3cda26fed791/
Parent samples :
5bc966e22893f103baa526fdd1392a0350890a4a151670fe608f55f32eaa9c1b
155553bb67adc4d25f04154a47b31059d3510ac758fce357254e48aef069e3a8
b359375e9ac1bbd90bcb60c5fc6834d8a12ee2f4aadb34a001bda42a1c93b228
12073c53d3b3398029c8557892e33485943dfea94478a9192ed3c362de2a1a64
dc1325117fde7f750e5c4a2fcaa09560b63760da668d899ad9dcf9e414e85fbf
SH256 hash:
fabc524c73f8833486a17f15e81af71ce928d9e542144d346ff447fa2ba57d22
MD5 hash:
7b6722a61bf456a96a1f163a17ef0c0c
SHA1 hash:
d09759e0548e175cda8f356c58dd4204017936a6
Link:
https://www.unpac.me/results/5ab14f0e-0203-4296-9475-3cda26fed791/
SH256 hash:
bedc5018d0fb41b72bf3f7284aa690b49c639d6b9dae31aaaafb9c783fe4ac76
MD5 hash:
c0a4b7d40c36cbddc6f10d262f69ed60
SHA1 hash:
a750b5379e0ba3f9702929d4a5b6ac29a5a68455
Link:
https://www.unpac.me/results/5ab14f0e-0203-4296-9475-3cda26fed791/
SH256 hash:
570b9eb7d0b36dc5cef9635254ccaed3adb97bedbfdd6f591f072971bb26ba63
MD5 hash:
dca58f4d1bc0a6da32a7ab5f06b62999
SHA1 hash:
5fee3eda589e23144f63498c6a06d90c4203a219
Link:
https://www.unpac.me/results/5ab14f0e-0203-4296-9475-3cda26fed791/
SH256 hash:
880c9ff80de33cde042ab26d75677dab18fdc7695908d615c44efa8b5d8e088a
MD5 hash:
07e1e5baea35d75e784cce3b991a5fdc
SHA1 hash:
2f5cd9ad4acec13ddb49f9d69093f9fe475342c2
Link:
https://www.unpac.me/results/5ab14f0e-0203-4296-9475-3cda26fed791/
SH256 hash:
b359375e9ac1bbd90bcb60c5fc6834d8a12ee2f4aadb34a001bda42a1c93b228
MD5 hash:
cff2a60348a646f0ba281371e8dde73b
SHA1 hash:
a20c002a4516795af98eb4d8db1b91d98e1a922a
Link:
https://www.unpac.me/results/5ab14f0e-0203-4296-9475-3cda26fed791/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/b359375e9ac1bbd90bcb60c5fc6834d8a12ee2f4aadb34a001bda42a1c93b228

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:exploit_any_poppopret
Create hunting rule
Author:Jeff White [karttoon@gmail.com] @noottrak
Description:Identify POP -> POP -> RET opcodes for quick ROP Gadget creation in target binaries.
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.

Web download

Formbook

Executable exe b359375e9ac1bbd90bcb60c5fc6834d8a12ee2f4aadb34a001bda42a1c93b228

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2247150/
Cape
Cape
https://www.capesandbox.com/analysis/282221/

Comments


Avatar
zbet commented on 2022-06-22 07:32:59 UTC

url : hxxp://107.175.212.108/offer/winlogon.exe