MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0a644c28fba57280abf3226ace12e8aa12f284f78485423b7c358ed29f515167. 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 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 0a644c28fba57280abf3226ace12e8aa12f284f78485423b7c358ed29f515167
SHA3-384 hash: 5c96bb49bc907926bd9e91b13886edad901e7221e840846cbf1cc04e02f79aa63908005ce08324d0be3b7960cf242a35
SHA1 hash: 3a00bcd787b17ba700bf539f43af561a4993d5a7
MD5 hash: 3a9babcb8761dc67fb2867323d4f6f77
humanhash: oranges-missouri-venus-victor
File name:0a644c28fba57280abf3226ace12e8aa12f284f78485423b7c358ed29f515167
Download: download sample
Signature Stop
Create hunting rule
File size:712'192 bytes
First seen:2021-09-06 06:43:51 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash d9ba9c76f1c1b9698712bcd1010ec021 (4 x RaccoonStealer, 2 x RedLineStealer, 2 x Smoke Loader)
ssdeep 12288:yJhhrJx/Kr23D3FClYayN9rDU4Kj7sjwx0R8ZR8ABigZL:Eh7x/KrYNRU4gUYjR1X
Threatray 516 similar samples on MalwareBazaar
TLSH T12CE41321F8B0C077D183D5B47AAC89B0567AB9E09BE455871F6F760E4D32240CB2BF66
dhash icon 1072c093b0381902 (22 x RedLineStealer, 7 x RaccoonStealer, 4 x Smoke Loader)
Reporter JAMESWT_WT
Tags:exe Stop

Intelligence

File Origin
# of uploads :
1
# of downloads :
140
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
0a644c28fba57280abf3226ace12e8aa12f284f78485423b7c358ed29f515167
Verdict:
Suspicious activity
Analysis date:
2021-09-06 07:05:26 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/04f46a5f-6a69-48d0-a156-e52c3059544c

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/185584/
Detection(s):
Win.Packed.Fragtor-9887412-0
Create hunting rule

Win.Packed.Fragtor-9887427-0
Create hunting rule

Win.Packed.Fragtor-9887428-0
Create hunting rule

Win.Packed.Fragtor-9888193-0
Create hunting rule

Win.Packed.Fragtor-9888194-0
Create hunting rule

Win.Packed.Generic-9889663-0
Create hunting rule

Win.Packed.Generickdz-9890089-0
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
Deleting a recently created file
Sending an HTTP GET request
Sending a UDP request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Query of malicious DNS domain
Enabling autorun by creating a file
Malware family:
STOP Ransomware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/22d805c2-2e73-4771-a329-5300215a3a12
Result
Threat name:
Djvu
Create hunting rule
Detection:
malicious
Classification:
rans.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/845811
Signature
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
Detected unpacking (changes PE section rights)
Found malware configuration
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
Sigma detected: Suspicious Svchost Process
Yara detected Djvu Ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 478239 Sample: tRWUb8Czkh Startdate: 06/09/2021 Architecture: WINDOWS Score: 100 60 Found malware configuration 2->60 62 Multi AV Scanner detection for submitted file 2->62 64 Found ransom note / readme 2->64 66 4 other signatures 2->66 8 tRWUb8Czkh.exe 2->8         started        11 tRWUb8Czkh.exe 2->11         started        13 tRWUb8Czkh.exe 2->13         started        15 tRWUb8Czkh.exe 2->15         started        process3 signatures4 70 Multi AV Scanner detection for dropped file 8->70 72 Detected unpacking (changes PE section rights) 8->72 74 Machine Learning detection for dropped file 8->74 17 tRWUb8Czkh.exe 1 17 8->17         started        76 Contains functionality to inject code into remote processes 11->76 78 Injects a PE file into a foreign processes 11->78 22 tRWUb8Czkh.exe 1 17 11->22         started        24 svchost.exe 1 11->24         started        26 tRWUb8Czkh.exe 13->26         started        28 BackgroundTransferHost.exe 13->28         started        process5 dnsIp6 52 astdg.top 17->52 40 C:\_readme.txt, ASCII 17->40 dropped 42 C:\Users\user\...\tRWUb8Czkh.exe.hoop (copy), data 17->42 dropped 44 C:\Users\user\Desktop\tRWUb8Czkh.exe, data 17->44 dropped 50 9 other files (3 malicious) 17->50 dropped 68 Modifies existing user documents (likely ransomware behavior) 17->68 54 api.2ip.ua 77.123.139.190, 443, 49699, 49703 VOLIA-ASUA Ukraine 22->54 46 C:\Users\user\AppData\...\tRWUb8Czkh.exe, PE32 22->46 dropped 48 C:\Users\...\tRWUb8Czkh.exe:Zone.Identifier, ASCII 22->48 dropped 30 tRWUb8Czkh.exe 22->30         started        33 icacls.exe 22->33         started        file7 signatures8 process9 signatures10 80 Injects a PE file into a foreign processes 30->80 35 tRWUb8Czkh.exe 13 30->35         started        38 tRWUb8Czkh.exe 13 30->38         started        process11 dnsIp12 56 api.2ip.ua 35->56 58 api.2ip.ua 38->58
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/0a644c28fba57280abf3226ace12e8aa12f284f78485423b7c358ed29f515167/
Threat name:
Win32.Trojan.Fragtor
Create hunting rule
Status:
Malicious
First seen:
2021-08-20 17:03:55 UTC
File Type:
PE (Exe)
Extracted files:
26
AV detection:
36 of 43 (83.72%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=bjseykh3uvzibk7tejvm4exivijpfbhxqscueo34gwhnfh2rkftq._file
Verdict:
malicious
Similar samples:
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+ 506 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
Link:
https://tria.ge/reports/210906-hhmvcaaeh7/
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
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
Malware Config
C2 Extraction:
https://romkaxarit.tumblr.com/
Unpacked files
SH256 hash:
4580e62c1de80a1dc7e0117123e27ee037497748c4d69cc3f741d2a7e2a904cc
MD5 hash:
32dcd958a4932403c46da0764b69378b
SHA1 hash:
82e34d8dd50a9cca0224b36d05d414a47f4eb68b
Detections:
win_stop_auto
Create hunting rule
Link:
https://www.unpac.me/results/84ab94dc-e8ef-4707-ab71-48bff7a20291/
Parent samples :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 hash:
0a644c28fba57280abf3226ace12e8aa12f284f78485423b7c358ed29f515167
MD5 hash:
3a9babcb8761dc67fb2867323d4f6f77
SHA1 hash:
3a00bcd787b17ba700bf539f43af561a4993d5a7
Link:
https://www.unpac.me/results/84ab94dc-e8ef-4707-ab71-48bff7a20291/
Malware family:
Djvu
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/0a644c28fba5/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/0a644c28fba57280abf3226ace12e8aa12f284f78485423b7c358ed29f515167

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:INDICATOR_SUSPICIOUS_EXE_SQLQuery_ConfidentialDataStore
Create hunting rule
Author:ditekSHen
Description:Detects executables containing SQL queries to confidential data stores. Observed in infostealers
Rule name:INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation
Create hunting rule
Author:ditekSHen
Description:Detects executables containing potential Windows Defender anti-emulation checks
Rule name:MALWARE_Win_STOP
Create hunting rule
Author:ditekSHen
Description:Detects STOP ransomware
Rule name:MALWARE_Win_Vidar
Create hunting rule
Author:ditekSHen
Description:Detects Vidar / ArkeiStealer
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
Rule name:Vidar
Create hunting rule
Author:kevoreilly
Description:Vidar Payload
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.

Cape
Cape
https://www.capesandbox.com/analysis/185584/

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