MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a4ac450123dc6794e5ed2fb846d74d70f95be897931fa43983665e8287176a23. 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


Stop


Vendor detections: 13


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

SHA256 hash: a4ac450123dc6794e5ed2fb846d74d70f95be897931fa43983665e8287176a23
SHA3-384 hash: 32bf3a707ca2fb263e4c068f6975bff29162fb15823397440b2cc31df0f8d856600214c7df24c596cacce75d18a24b12
SHA1 hash: 7f563a50639ca347e570eef06a163e8feeb67e6d
MD5 hash: c2375aea651a8048da82bffe8bfebb5e
humanhash: equal-diet-social-timing
File name:a4ac450123dc6794e5ed2fb846d74d70f95be897931fa43983665e8287176a23
Download: download sample
Signature Stop
Create hunting rule
File size:800'256 bytes
First seen:2021-09-06 06:42:01 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 72021c954fb2224cd9089a2e04035b9f (3 x Stop, 1 x RaccoonStealer)
ssdeep 24576:vb3xmJUsA66PExjnwWY/fc5j2lQ08wGsK1:vb32UB6fTwWccUl3J3
Threatray 510 similar samples on MalwareBazaar
TLSH T15205122BB560543BE4540972CC65BB751DAABD9EAD22D28332D027AF6EF13C0B743316
dhash icon fcfcd4f4d4dcd8c0 (34 x RaccoonStealer, 21 x RedLineStealer, 8 x ArkeiStealer)
Reporter JAMESWT_WT
Tags:exe Stop

Intelligence

File Origin
# of uploads :
1
# of downloads :
129
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
a4ac450123dc6794e5ed2fb846d74d70f95be897931fa43983665e8287176a23
Verdict:
Suspicious activity
Analysis date:
2021-09-06 07:23:23 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/06887a66-3fae-4256-8209-23d2e2c5ea57

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Vidar
Create hunting rule
Link:
https://www.capesandbox.com/analysis/185564/
Detection(s):
Win.Packed.Filerepmalware-9890038-0
Create hunting rule

Win.Packed.Fragtor-9890049-0
Create hunting rule

Win.Packed.Fragtor-9890050-0
Create hunting rule

Win.Packed.Fragtor-9890080-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
DNS request
Connection attempt
Sending a custom TCP request
Creating a file
Launching a process
Creating a process with a hidden window
Adding an access-denied ACE
Sending a UDP request
Deleting a recently created file
Sending an HTTP GET request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Malware family:
STOP Ransomware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/3875cc74-f7b7-4703-8d43-909dee7a7e92
Result
Threat name:
Clipboard Hijacker Djvu
Create hunting rule
Detection:
malicious
Classification:
rans.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/845837
Signature
Antivirus detection for URL or domain
Contains functionality to inject code into remote processes
Detected unpacking (changes PE section rights)
Injects a PE file into a foreign processes
Machine Learning detection for sample
Modifies existing user documents (likely ransomware behavior)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Clipboard Hijacker
Yara detected Djvu Ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 478275 Sample: hX7hbEMSjQ Startdate: 06/09/2021 Architecture: WINDOWS Score: 100 38 192.168.2.1 unknown unknown 2->38 40 api.2ip.ua 2->40 52 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->52 54 Antivirus detection for URL or domain 2->54 56 Multi AV Scanner detection for dropped file 2->56 58 6 other signatures 2->58 9 hX7hbEMSjQ.exe 2->9         started        12 hX7hbEMSjQ.exe 2->12         started        signatures3 process4 signatures5 60 Detected unpacking (changes PE section rights) 9->60 62 Contains functionality to inject code into remote processes 9->62 64 Injects a PE file into a foreign processes 9->64 14 hX7hbEMSjQ.exe 1 16 9->14         started        process6 dnsIp7 48 api.2ip.ua 77.123.139.190, 443, 49704, 49705 VOLIA-ASUA Ukraine 14->48 36 C:\Users\...\hX7hbEMSjQ.exe:Zone.Identifier, ASCII 14->36 dropped 18 hX7hbEMSjQ.exe 14->18         started        21 icacls.exe 14->21         started        file8 process9 signatures10 50 Injects a PE file into a foreign processes 18->50 23 hX7hbEMSjQ.exe 1 24 18->23         started        process11 dnsIp12 42 securebiz.org 175.120.254.9, 49706, 80 SKB-ASSKBroadbandCoLtdKR Korea Republic of 23->42 44 tbpws.top 109.102.255.230, 49707, 49709, 80 RTDBucharestRomaniaRO Romania 23->44 46 api.2ip.ua 23->46 28 C:\Users\user\AppData\Local\...\build3.exe, PE32 23->28 dropped 30 C:\Users\user\AppData\Local\...\build3[1].exe, PE32 23->30 dropped 32 C:\Users\user\AppData\Local\...\build2[1].exe, PE32 23->32 dropped 34 17 other files (4 malicious) 23->34 dropped 66 Modifies existing user documents (likely ransomware behavior) 23->66 file13 signatures14
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a4ac450123dc6794e5ed2fb846d74d70f95be897931fa43983665e8287176a23/
Threat name:
Win32.Ransomware.StopCrypt
Create hunting rule
Status:
Malicious
First seen:
2021-09-01 00:44:32 UTC
File Type:
PE (Exe)
Extracted files:
82
AV detection:
34 of 43 (79.07%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uswekajd3rtzjzpnf64env2nod4vx2exsmp2iomdmzpifbyxnirq._file
Verdict:
malicious
Similar samples:
0c1571e0f22ecc1c3ed2b80ee90df329d820e287ac0be834aa905726ea96887e
Stop
5651c726a433d942eb9cdbe74c6631178fa3e243e0953e0a55f54f1752e05682
Stop
5d232ce70bfdc3344ad9c117da898e5d72ea5a5ff0704933735abb186714c9f4
Stop
9b87dcaaf50d205d4eb5217c857e52d0afa4790716a793f5f6e563a955f632b1
Stop
adc2c80f4a9f969a641f2674c94bd576420b34d338b12ba5b4cab09e6c51a466
Stop
dc6f024b81983ce22d883ccc346b3888d984e360196b3e472c1cce3f79b70fa0
Stop
+ 500 additional samples on MalwareBazaar
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:djvu family:vidar botnet:517 discovery persistence ransomware spyware stealer suricata
Link:
https://tria.ge/reports/210906-hgc9hsdgar/
Behaviour
Checks processor information in registry
Creates scheduled task(s)
Delays execution with timeout.exe
Kills process with taskkill
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses 2FA software files, possible credential harvesting
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
Checks installed software on the system
Looks up external IP address via web service
Loads dropped DLL
Modifies file permissions
Reads user/profile data of web browsers
Downloads MZ/PE file
Executes dropped EXE
Vidar Stealer
Detected Djvu ransomeware
Djvu Ransomware
Vidar
suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil
Malware Config
C2 Extraction:
https://romkaxarit.tumblr.com/
Unpacked files
SH256 hash:
160aa84363640ef0e569e00640cda85b766b67c1ff71b0fd949a3ce2e6e40a9c
MD5 hash:
dc4e9cdb6ae0ce6841be15657634ad11
SHA1 hash:
585d350e71c55988c029423eec6b67737a520fa0
Detections:
win_stop_auto
Create hunting rule
Link:
https://www.unpac.me/results/b7f3afb4-30ac-49c0-b8f2-c406b499993a/
Parent samples :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 hash:
a4ac450123dc6794e5ed2fb846d74d70f95be897931fa43983665e8287176a23
MD5 hash:
c2375aea651a8048da82bffe8bfebb5e
SHA1 hash:
7f563a50639ca347e570eef06a163e8feeb67e6d
Link:
https://www.unpac.me/results/b7f3afb4-30ac-49c0-b8f2-c406b499993a/
Malware family:
Djvu
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/a4ac450123dc/report/overview.html
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/a4ac450123dc6794e5ed2fb846d74d70f95be897931fa43983665e8287176a23

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/185564/

Comments