MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a3cc50ef9c2d82f2473f0bd86f58e9d2e6c3a31bbd98b8e3fe6c7bbf4e3ebedd. 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: 11


Intelligence 11 IOCs 1 YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a3cc50ef9c2d82f2473f0bd86f58e9d2e6c3a31bbd98b8e3fe6c7bbf4e3ebedd
SHA3-384 hash: 7ef8ef94b37934aa3ac3fdf09cef9c86afbd7ce80f8cfc5c92adc39afdc436e6e72c457fb80a34c383fccce768566b29
SHA1 hash: 9a6a6f4fb1d0bb9982f3744b2e62a9d7046c24f9
MD5 hash: 745284d428eb4323f83b4098b1f84bf1
humanhash: bakerloo-oregon-twenty-finch
File name:745284d428eb4323f83b4098b1f84bf1.exe
Download: download sample
Signature Stop
Create hunting rule
File size:892'928 bytes
First seen:2021-06-08 07:08:16 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash e81b9f97b533b87273485fe586897046 (3 x Stop, 1 x Glupteba)
ssdeep 12288:Ra5f/AAw+rFHebCsTuC1/TNuuz7GHp6f9cxTEYdVNogO8CuOJHQA0IB/HwB+F6b8:Runw+XsTJ10bEl8EkULPuOj340F/ddX
Threatray 263 similar samples on MalwareBazaar
TLSH A915F100B6A0C030F1F756F98A7681AFA525BDA17B6460CB52C436EE7635DE0AE30F47
Reporter abuse_ch
Tags:exe Stop


Avatar
abuse_ch
Stop C2:
http://185.99.133.218/

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
http://185.99.133.218/ https://threatfox.abuse.ch/ioc/67932/

Intelligence

File Origin
# of uploads :
1
# of downloads :
184
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
745284d428eb4323f83b4098b1f84bf1.exe
Verdict:
Suspicious activity
Analysis date:
2021-06-08 08:15:18 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/1d313374-03ab-45bf-9386-6ae59e732678

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/165208/
Detection(s):
Win.Malware.Generic-9868195-0
Create hunting rule

Win.Malware.Generic-9868256-0
Create hunting rule

Win.Malware.Generic-9868266-0
Create hunting rule

Win.Malware.Pwsx-9868289-0
Create hunting rule

Win.Malware.Pwsx-9868321-0
Create hunting rule

Win.Malware.Filerepmalware-9868326-0
Create hunting rule

Win.Malware.Generic-9868420-0
Create hunting rule

Win.Packed.Pwsx-9868520-0
Create hunting rule

Win.Packed.Generic-9868565-0
Create hunting rule

Win.Dropper.Glupteba-9868630-0
Create hunting rule

Win.Malware.Generic-9868676-0
Create hunting rule

Win.Malware.Pwsx-9869164-0
Create hunting rule

Win.Malware.Generic-9869165-0
Create hunting rule

Win.Packed.Filerepmalware-9869184-0
Create hunting rule

Win.Packed.Pwsx-9869260-0
Create hunting rule

Win.Malware.Generic-9869276-0
Create hunting rule

Win.Malware.Filerepmalware-9869285-0
Create hunting rule

Win.Packed.Stop-9869374-0
Create hunting rule

Win.Packed.Pwsx-9869375-0
Create hunting rule

Win.Packed.Pwsx-9869377-0
Create hunting rule

Win.Malware.Pwsx-9869390-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Unauthorized injection to a recently created process
Sending a custom TCP request
Creating a file
Launching a process
Creating a process with a hidden window
Adding an access-denied ACE
DNS request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
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:
Djvu
Create hunting rule
Detection:
malicious
Classification:
rans.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/798611
Signature
Contains functionality to inject code into remote processes
Found ransom note / readme
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
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
Sample uses process hollowing technique
Yara detected Djvu Ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 431008 Sample: U0CtWGncpV.exe Startdate: 08/06/2021 Architecture: WINDOWS Score: 96 62 Multi AV Scanner detection for submitted file 2->62 64 Found ransom note / readme 2->64 66 Yara detected Djvu Ransomware 2->66 68 Machine Learning detection for sample 2->68 9 U0CtWGncpV.exe 2->9         started        12 U0CtWGncpV.exe 2->12         started        14 U0CtWGncpV.exe 2->14         started        process3 signatures4 74 Contains functionality to inject code into remote processes 9->74 76 Injects a PE file into a foreign processes 9->76 16 U0CtWGncpV.exe 1 16 9->16         started        78 Multi AV Scanner detection for dropped file 12->78 80 Machine Learning detection for dropped file 12->80 82 Sample uses process hollowing technique 12->82 20 U0CtWGncpV.exe 12 12->20         started        22 U0CtWGncpV.exe 12 14->22         started        process5 dnsIp6 52 api.2ip.ua 77.123.139.190, 443, 49721, 49729 VOLIA-ASUA Ukraine 16->52 40 C:\Users\user\AppData\...\U0CtWGncpV.exe, PE32 16->40 dropped 42 C:\Users\...\U0CtWGncpV.exe:Zone.Identifier, ASCII 16->42 dropped 24 U0CtWGncpV.exe 16->24         started        27 icacls.exe 16->27         started        file7 process8 signatures9 72 Injects a PE file into a foreign processes 24->72 29 U0CtWGncpV.exe 12 24->29         started        32 U0CtWGncpV.exe 24->32         started        process10 dnsIp11 58 api.2ip.ua 29->58 35 U0CtWGncpV.exe 19 29->35         started        60 Injects a PE file into a foreign processes 32->60 signatures12 process13 dnsIp14 54 asvb.top 35.236.78.72, 49740, 80 GOOGLEUS United States 35->54 56 api.2ip.ua 35->56 44 C:\_readme.txt, ASCII 35->44 dropped 46 C:\Users\user\Desktop\U0CtWGncpV.exe, data 35->46 dropped 48 C:\Users\user\Desktop\SQSJKEBWDT.jpg, data 35->48 dropped 50 4 other files (2 malicious) 35->50 dropped 70 Modifies existing user documents (likely ransomware behavior) 35->70 file15 signatures16
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a3cc50ef9c2d82f2473f0bd86f58e9d2e6c3a31bbd98b8e3fe6c7bbf4e3ebedd/
Threat name:
Win32.Ransomware.Convagent
Create hunting rule
Status:
Malicious
First seen:
2021-06-03 08:23:21 UTC
File Type:
PE (Exe)
Extracted files:
46
AV detection:
29 of 46 (63.04%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=upgfb344fwbperz7bpmg6whj2ltmhiy3xwmlry76nr536tr6x3oq._file
Verdict:
malicious
Similar samples:
0463b38f5b4a592a808c730ee27a29607fab41971d5cbad604a1559f1cf460dd
Stop
4d54efae853bb657096c19ccab822849250af7a4051e60e3a1d44d0fb7f6502e
Stop
59db1c1bc14d72ef225926c9d5a5a5a704d79b22b720e4e7884b2da2825c9203
Stop
6c63325e8f7928f68484e7131d1e4b727f94bd476f8a875d17f5ca680c3d8e92
Stop
73ee55d80837accbaf001434a618fcc3a0afbf80928ed8b5b8d9a681fccfaa43
Stop
7dd793aab5547eb5523f7c9c0222b819995d7550603fa027854a63327b59b657
Stop
88a30fa4dee34a4249544734b5323f180ba725a8582226a5b891c43e81b2c395
Stop
afc40ccbfe32719ae9b39ce16275f27400faefefcf207641d06b61ddde622011
Stop
dcbea2abd13caac137cf4b0075f1631d7db9ddbcf11f09563f8b163e43191363
Stop
e130228c8ed44ad5e8963c25b57e0f5186b6ef4dd00287e3505cb6be51369c82
Stop
+ 253 additional samples on MalwareBazaar
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:djvu family:vidar discovery evasion persistence ransomware spyware stealer
Link:
https://tria.ge/reports/210608-55axehmqex/
Behaviour
Checks processor information in registry
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
Program crash
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
Disables Task Manager via registry modification
Downloads MZ/PE file
Drops file in Drivers directory
Executes dropped EXE
Deletes Windows Defender Definitions
Djvu Ransomware
Vidar
Unpacked files
SH256 hash:
41e56b8b94805135b173db7320c41de1ee40d5ae3916ae6ca5e97bdf3a933daa
MD5 hash:
c7a3e9c8a8d0f7597ce60fb5fdf50eb5
SHA1 hash:
24f034d6535e4027b11f056609129742b8e846e9
Detections:
win_stop_auto
Create hunting rule
Link:
https://www.unpac.me/results/bcf100cb-f812-4487-84a5-cbb974e75f30/
Parent samples :
8de1c803e333135d44bccdc6d357a6a25c60aae00a95f36d827c48142eb1c1ec
ee5b56341fc871f88e2a32899bb9ad27db349918616db5fe20dd6540ab309a52
b4a1845a21726b4826eb4157114d424c9a0f1c3112f67f587cbea352dd33ac61
d81ca2ed0abb074acee81a9f9a94c57589e070261297c5a318518fb82d6834b7
e8d9db4c4bb1013a830bbc9e0588d9e3db245113720d231709319551d3794185
9a248710ede1a89871928c90a232ada5efe6285ed4d7d8f6586ca04c93ba4058
a2212d4357d516c94ce27cd02e67c98e7f6715fb865eb52c962d404aa6666635
48f9f1e0b78e43e369c345080f9ea2dfae221585887535e898b4abce7e5d51c5
14ec14512e3fa567cecd4ac0c1254116e193bc3ea915ae45bb7bf81ea57d40e9
e1273fa249ab6710409cb7cad619d7f55257c60f71556a9020ac169e3013ac1c
e8203dbedbd53ecc87d5f35ff1ee8b8db3c71b00f4527cff5136c4125ba3b884
c16f961c7c33eebec372533924402b92161f4609b84f52f2ae0a309b1def6476
244975c13c9f8fd20b47432950a112f75af9d3591b33ae25b090560b99364140
5a1e038a00535de0be9b3912fc476c774dad4d06308af01f9da24471a61015b2
4cb30ba80bddfb782f7272133351681a964094ca073240db283be0107182aa30
88804aa72fa1c55bf7c758f8cc69a28b06eddf31337f6ae9f842b8ba515d213b
6d24cc1c0043f5f6a3f9c02d408575d5c17c58d60e616df059d75d07de8529de
969993c7de4cc91dc8422fd52d9099ea4bda31162fbbe110a5c21d8d3e5a9f3c
b8700f6758c2a698969205225d4e9cba9688a8d2dd30801826c178db0de9becb
a3cc50ef9c2d82f2473f0bd86f58e9d2e6c3a31bbd98b8e3fe6c7bbf4e3ebedd
7a2f648caf2fab403fc84e7c5a3f0d89e52e8f3b0c2492a26588f094e5981c9b
6e515984fde0582b4608f7982df15016c44df2f558859fcb4afabc25f9284054
SH256 hash:
a3cc50ef9c2d82f2473f0bd86f58e9d2e6c3a31bbd98b8e3fe6c7bbf4e3ebedd
MD5 hash:
745284d428eb4323f83b4098b1f84bf1
SHA1 hash:
9a6a6f4fb1d0bb9982f3744b2e62a9d7046c24f9
Link:
https://www.unpac.me/results/bcf100cb-f812-4487-84a5-cbb974e75f30/
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/a3cc50ef9c2d82f2473f0bd86f58e9d2e6c3a31bbd98b8e3fe6c7bbf4e3ebedd

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:SUSP_XORed_URL_in_EXE
Create hunting rule
Author:Florian Roth
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834

File information

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

Web download

Stop

Executable exe a3cc50ef9c2d82f2473f0bd86f58e9d2e6c3a31bbd98b8e3fe6c7bbf4e3ebedd

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1256494/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/165208/

Comments