MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c91071dff8e4b548b5b4abe6704b146dd92d650b21efcd995a0c3e3420379c8a. 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: 17


Intelligence 17 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c91071dff8e4b548b5b4abe6704b146dd92d650b21efcd995a0c3e3420379c8a
SHA3-384 hash: fb827e150b6ca7a197824ce9b37c0964f3b7742a4a322399f9015804334ad8400f0063fbde73aede4d921d2f36e1caa6
SHA1 hash: d44be00c0c324b716e82df52861a7a3fe25c9ada
MD5 hash: 0561ceda4fda0f05bd696ada346e5d49
humanhash: music-autumn-ack-high
File name:setup.exe
Download: download sample
Signature Stop
Create hunting rule
File size:712'192 bytes
First seen:2023-03-15 03:28:56 UTC
Last seen:2023-03-15 05:27:03 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 23e8af559124378932e77f64e85571f5 (4 x Stop, 3 x RedLineStealer, 3 x Smoke Loader)
ssdeep 12288:pNhXoWBMjojS000Fh2+ilQTb4/CFEWNb6HNtn3tN2hD0GK0iryz4I0f7pJpI:TBMk00WTlAtb6tdtN29O/tt9
Threatray 1'347 similar samples on MalwareBazaar
TLSH T1AFE4F10393A07B21E9608F32DE2FC7B9361CF5618E58BB76320D6B5F04B53A1E922755
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 816a6e6a6a6a6a68 (2 x RedLineStealer, 1 x Amadey, 1 x Stop)
Reporter Chainskilabs
Tags:exe Stop

Intelligence

File Origin
# of uploads :
2
# of downloads :
236
Origin country :
US US
Vendor Threat Intelligence
Malware family:
stop
Create hunting rule
ID:
1
File name:
setup.exe
Verdict:
Malicious activity
Analysis date:
2023-03-15 03:29:30 UTC
Tags:
ransomware stop
Link:
https://app.any.run/tasks/c4e8f194-f043-45b9-991a-864b169612e4

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
STOP
Create hunting rule
Link:
https://www.capesandbox.com/analysis/374444/
Detection(s):
SecuriteInfo.com.Variant.Jaik.129274.20719.13684.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Sending an HTTP GET request
Creating a file
Launching a process
Creating a process with a hidden window
Adding an access-denied ACE
Сreating synchronization primitives
Deleting a recently created file
DNS request
Query of malicious DNS domain
Sending a TCP request to an infection source
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Sending an HTTP GET request to an infection source
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
greyware lockbit packed
Link:
https://www.filescan.io/uploads/64113b803120829676f98bfd/reports/afe7561e-3ee2-4a81-83af-38c13341e144/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/c91071dff8e4b548b5b4abe6704b146dd92d650b21efcd995a0c3e3420379c8a
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.
Malware family:
STOP Ransomware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/594b5d80-733e-4724-b560-fda263434f90
Result
Threat name:
Babuk, Clipboard Hijacker, Djvu, Vidar
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1193878
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found ransom note / readme
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Modifies existing user documents (likely ransomware behavior)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
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
Writes a notice file (html or txt) to demand a ransom
Writes many files with high entropy
Yara detected Babuk Ransomware
Yara detected Clipboard Hijacker
Yara detected Djvu Ransomware
Yara detected Vidar stealer
Yara detected ZipBomb
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 826779 Sample: setup.exe Startdate: 15/03/2023 Architecture: WINDOWS Score: 100 81 Snort IDS alert for network traffic 2->81 83 Multi AV Scanner detection for domain / URL 2->83 85 Malicious sample detected (through community Yara rule) 2->85 87 12 other signatures 2->87 11 setup.exe 2->11         started        14 setup.exe 2->14         started        16 setup.exe 2->16         started        18 2 other processes 2->18 process3 signatures4 99 Detected unpacking (changes PE section rights) 11->99 101 Detected unpacking (overwrites its own PE header) 11->101 103 Writes a notice file (html or txt) to demand a ransom 11->103 105 Writes many files with high entropy 11->105 20 setup.exe 1 16 11->20         started        107 Injects a PE file into a foreign processes 16->107 24 setup.exe 16->24         started        109 Multi AV Scanner detection for dropped file 18->109 26 schtasks.exe 18->26         started        process5 dnsIp6 75 api.2ip.ua 162.0.217.254, 443, 49696, 49697 ACPCA Canada 20->75 63 C:\Users\user\...\setup.exe:Zone.Identifier, ASCII 20->63 dropped 65 C:\Users\user\AppData\Local\...\setup.exe, MS-DOS 20->65 dropped 28 setup.exe 20->28         started        31 icacls.exe 20->31         started        33 conhost.exe 26->33         started        file7 process8 signatures9 111 Injects a PE file into a foreign processes 28->111 35 setup.exe 1 25 28->35         started        process10 dnsIp11 69 zexeq.com 58.235.189.192, 49698, 49700, 80 SKB-ASSKBroadbandCoLtdKR Korea Republic of 35->69 71 uaery.top 187.245.185.123, 49699, 80 MegaCableSAdeCVMX Mexico 35->71 73 api.2ip.ua 35->73 55 C:\Users\user\AppData\Local\...\build3[1].exe, PE32 35->55 dropped 57 C:\Users\user\AppData\Local\...\build2[1].exe, PE32 35->57 dropped 59 C:\_readme.txt, ASCII 35->59 dropped 61 142 other malicious files 35->61 dropped 89 Modifies existing user documents (likely ransomware behavior) 35->89 40 build2.exe 35->40         started        43 build3.exe 35->43         started        file12 signatures13 process14 file15 91 Detected unpacking (changes PE section rights) 40->91 93 Detected unpacking (overwrites its own PE header) 40->93 95 Injects a PE file into a foreign processes 40->95 46 build2.exe 12 40->46         started        67 C:\Users\user\AppData\Roaming\...\mstsca.exe, PE32 43->67 dropped 97 Uses schtasks.exe or at.exe to add and modify task schedules 43->97 49 schtasks.exe 43->49         started        signatures16 process17 dnsIp18 77 t.me 149.154.167.99, 443, 49701 TELEGRAMRU United Kingdom 46->77 79 195.201.255.32, 49702, 80 HETZNER-ASDE Germany 46->79 51 WerFault.exe 46->51         started        53 conhost.exe 49->53         started        process19
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c91071dff8e4b548b5b4abe6704b146dd92d650b21efcd995a0c3e3420379c8a/
Threat name:
Win32.Trojan.Jaik
Create hunting rule
Status:
Malicious
First seen:
2023-03-15 03:29:08 UTC
File Type:
PE (Exe)
Extracted files:
37
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zeihdx7y4s2urnnuvpthasyunxms2zilehx43gk2bq7diibxtsfa._file
Verdict:
malicious
Similar samples:
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Stop
5aad6ebccf994b06ae04f81acb19cbf976cea52e91671b5375c9c5d37dbb7098
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83c4c80adbeb1d8411e49c1d14a886af6a26c9fb9827d8852d4e45e4a5f09b17
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+ 1'337 additional samples on MalwareBazaar
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:djvu family:vidar botnet:d6ef050131e7d5a1d595c51613328971 discovery persistence ransomware spyware stealer
Link:
https://tria.ge/reports/230315-d1xp2sdb7w/
Behaviour
Checks processor information in registry
Creates scheduled task(s)
Delays execution with timeout.exe
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
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Modifies file permissions
Reads user/profile data of web browsers
Downloads MZ/PE file
Detected Djvu ransomware
Djvu Ransomware
Vidar
Malware Config
C2 Extraction:
http://zexeq.com/test2/get.php
https://t.me/zaskullz
https://steamcommunity.com/profiles/76561199486572327
http://135.181.87.234:80
Unpacked files
SH256 hash:
fd397d3fe36fba71e823826d20d5172e3a931897a6c29792d4daab4addead614
MD5 hash:
8c1cb32901a4c1555453ea57e1fcef7a
SHA1 hash:
15540c07a3525edf88577ebe9ad6bd21aa74c188
Detections:
win_stop_auto
Create hunting rule
Link:
https://www.unpac.me/results/818ee28a-1d19-4756-a73f-731d3c674e83/
Parent samples :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 hash:
c91071dff8e4b548b5b4abe6704b146dd92d650b21efcd995a0c3e3420379c8a
MD5 hash:
0561ceda4fda0f05bd696ada346e5d49
SHA1 hash:
d44be00c0c324b716e82df52861a7a3fe25c9ada
Link:
https://www.unpac.me/results/818ee28a-1d19-4756-a73f-731d3c674e83/
Malware family:
Djvu
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c91071dff8e4/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/c91071dff8e4b548b5b4abe6704b146dd92d650b21efcd995a0c3e3420379c8a

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:MALWARE_Win_STOP
Create hunting rule
Author:ditekSHen
Description:Detects STOP ransomware
Rule name:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB
Rule name:SUSP_XORed_URL_in_EXE
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834
Rule name:SUSP_XORed_URL_in_EXE_RID2E46
Create hunting rule
Author:Florian Roth
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834
Rule name:Windows_Ransomware_Stop_1e8d48ff
Create hunting rule
Author:Elastic Security
Rule name:win_stop_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.stop.

File information

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

Web download

Stop

Executable exe c91071dff8e4b548b5b4abe6704b146dd92d650b21efcd995a0c3e3420379c8a

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/374444/

Comments