MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a1637978bf5c17d54cd0447ec49ead040daeaf8e3bf58d84419ab8d0d05dbff5. 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: 14


Intelligence 14 IOCs YARA 5 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a1637978bf5c17d54cd0447ec49ead040daeaf8e3bf58d84419ab8d0d05dbff5
SHA3-384 hash: 60d4c31131e7f03d69e05a9cb23e1f0923cdcd68c82e47d5f1c7c4c491d913eb938e0da57e9024dc3ee9ab15a3bb6855
SHA1 hash: c094da979b9903ff7d7f9a039c4e4e14b7a61233
MD5 hash: 1481656ded891f97b5b9e30e63697126
humanhash: twelve-golf-finch-lactose
File name:1481656ded891f97b5b9e30e63697126
Download: download sample
Signature Stop
Create hunting rule
File size:852'480 bytes
First seen:2022-01-15 09:23:31 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 5e94baab68b90958add222dbac71061b (1 x Stop, 1 x Smoke Loader)
ssdeep 24576:/Mf7nlE3R/+2dwgbet43OG9Oyv++B5eF:/MDnyhj243OcB
Threatray 835 similar samples on MalwareBazaar
TLSH T1C405F210AB60C035F1B716F88A7AA36CB53E3E615B7891CF52D965EE26345E0ED3130B
File icon (PE):PE icon
dhash icon 2dec137831939b91 (4 x Smoke Loader, 3 x RedLineStealer, 1 x Stop)
Reporter zbetcheckin
Tags:32 exe Stop

Intelligence

File Origin
# of uploads :
1
# of downloads :
260
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
1481656ded891f97b5b9e30e63697126
Verdict:
Suspicious activity
Analysis date:
2022-01-15 09:31:42 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/21bd3e22-ce9f-45af-8cf3-6d882d8137ca

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/219492/
Detection(s):
Win.Dropper.Mikey-9917324-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
DNS request
Sending a custom TCP request
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
Searching for synchronization primitives
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Query of malicious DNS domain
Enabling autorun by creating a file
Sending an HTTP GET request to an infection source
Result
Malware family:
n/a
Score:
  9/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/4269/overview
Behaviour
MalwareBazaar
MeasuringTime
SystemUptime
CPUID_Instruction
EvasionGetTickCount
CheckCmdLine
EvasionQueryPerformanceCounter
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
greyware mikey packed
Link:
https://www.filescan.io/uploads/61e292b5f2e8ec86fe010ee7/reports/d14fba2d-fbae-464f-894a-4330bcc559db/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:
STOP Ransomware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/43e83ea0-4fd9-4fd2-a0f3-4e1a7c4525da
Result
Threat name:
Djvu Vidar
Create hunting rule
Detection:
malicious
Classification:
rans.spre.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/921128
Signature
Antivirus detection for dropped file
Antivirus detection for URL or domain
Contains functionality to inject code into remote processes
Found many strings related to Crypto-Wallets (likely being stolen)
Found ransom note / readme
Infects executable files (exe, dll, sys, html)
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 domain / URL
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)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Crypto Currency Wallets
Writes many files with high entropy
Yara detected Djvu Ransomware
Yara detected Vidar
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 553601 Sample: LP8tB9psFt Startdate: 15/01/2022 Architecture: WINDOWS Score: 100 84 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->84 86 Multi AV Scanner detection for domain / URL 2->86 88 Antivirus detection for URL or domain 2->88 90 10 other signatures 2->90 10 LP8tB9psFt.exe 2->10         started        13 LP8tB9psFt.exe 2->13         started        15 LP8tB9psFt.exe 2->15         started        17 LP8tB9psFt.exe 2->17         started        process3 signatures4 106 Contains functionality to inject code into remote processes 10->106 108 Writes many files with high entropy 10->108 110 Injects a PE file into a foreign processes 10->110 19 LP8tB9psFt.exe 1 17 10->19         started        23 LP8tB9psFt.exe 13->23         started        26 LP8tB9psFt.exe 13 15->26         started        28 LP8tB9psFt.exe 13 17->28         started        process5 dnsIp6 70 api.2ip.ua 77.123.139.190, 443, 49743, 49744 VOLIA-ASUA Ukraine 19->70 48 C:\Users\...\LP8tB9psFt.exe:Zone.Identifier, ASCII 19->48 dropped 50 C:\Users\user\AppData\...\LP8tB9psFt.exe, MS-DOS 19->50 dropped 30 LP8tB9psFt.exe 19->30         started        33 icacls.exe 19->33         started        52 C:\Users\user\Desktop\...IVQSAOTAQ.png, data 23->52 dropped 96 Modifies existing user documents (likely ransomware behavior) 23->96 file7 signatures8 process9 signatures10 118 Injects a PE file into a foreign processes 30->118 35 LP8tB9psFt.exe 1 23 30->35         started        process11 dnsIp12 72 kotob.top 186.182.55.44, 49745, 80 TechtelLMDSComunicacionesInteractivasSAAR Argentina 35->72 74 tzgl.org 91.139.196.113, 49746, 49750, 80 BULSATCOM-BG-ASSofiaBG Bulgaria 35->74 76 2 other IPs or domains 35->76 54 C:\Users\user\AppData\Local\...\build2[1].exe, PE32 35->54 dropped 56 C:\Users\user\AppData\Local\...\build2.exe, PE32 35->56 dropped 58 C:\_readme.txt, ASCII 35->58 dropped 60 45 other files (44 malicious) 35->60 dropped 92 Infects executable files (exe, dll, sys, html) 35->92 94 Modifies existing user documents (likely ransomware behavior) 35->94 40 build2.exe 35->40         started        file13 signatures14 process15 signatures16 98 Antivirus detection for dropped file 40->98 100 Multi AV Scanner detection for dropped file 40->100 102 Machine Learning detection for dropped file 40->102 104 Injects a PE file into a foreign processes 40->104 43 build2.exe 40->43         started        process17 dnsIp18 78 116.202.186.120, 49755, 80 HETZNER-ASDE Germany 43->78 80 qoto.org 51.91.13.105, 443, 49753 OVHFR France 43->80 82 c.im 104.21.80.230, 443, 49754 CLOUDFLARENETUS United States 43->82 62 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 43->62 dropped 64 C:\Users\user\AppData\...\msvcp140[1].dll, PE32 43->64 dropped 66 C:\Users\user\AppData\...\freebl3[1].dll, PE32 43->66 dropped 68 9 other files (none is malicious) 43->68 dropped 112 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 43->112 114 Tries to harvest and steal browser information (history, passwords, etc) 43->114 116 Tries to steal Crypto Currency Wallets 43->116 file19 signatures20
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a1637978bf5c17d54cd0447ec49ead040daeaf8e3bf58d84419ab8d0d05dbff5/
Threat name:
Win32.Trojan.Krypter
Create hunting rule
Status:
Malicious
First seen:
2022-01-15 09:24:14 UTC
File Type:
PE (Exe)
Extracted files:
27
AV detection:
18 of 27 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ufrxs6f7lql5ktgqir7mjhvnaqg25l4ohp2y3bcbtk4nbuc5x72q._file
Verdict:
malicious
Similar samples:
44bab40d0ba2224516ff0258b70b04529dee4ff397d0380131725fc19e347cff
Stop
7bfeead8e1bef9648ba41d467da4a8e1350ce9646609e7baadea8f4a31629f09
Stop
8292948dc01246cbe55ab7c75f6a70da2fd0ebf065960e9249b48160f0363b7a
Stop
a551d1a3fb023411b40e32ab9087cfd5716a3e4e50baf10c530d34a88210af15
Stop
e55b101e14ca8ec87d30e0fe3f1d491e6e4e4e49c0e43b00ca3badeac34746b4
Stop
e7884968f8cdd98fc26fd218c60024dac348ed12eac668021b6e18e785821b57
Stop
+ 825 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/220115-lc2yvsdfa9/
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
Checks computer location settings
Loads dropped DLL
Modifies file permissions
Reads user/profile data of web browsers
Downloads MZ/PE file
Executes dropped EXE
Vidar Stealer
Detected Djvu ransomware
Djvu Ransomware
Vidar
Malware Config
C2 Extraction:
http://tzgl.org/fhsgtsspen6/get.php
https://qoto.org/@banda4ker
https://c.im/@banda3ker
Unpacked files
SH256 hash:
66dcd435227722a5c2cd69fcf1dfd306f1aacb6b0b665124857fbd22b6c93a71
MD5 hash:
abd62caecbcae87212adc832111bd11d
SHA1 hash:
a03870579c9c6bb74cca875ffe082b262a0166ac
Detections:
win_stop_auto
Create hunting rule
Link:
https://www.unpac.me/results/d53fd2ff-cbab-46c5-86fc-9a161257fbd8/
SH256 hash:
a1637978bf5c17d54cd0447ec49ead040daeaf8e3bf58d84419ab8d0d05dbff5
MD5 hash:
1481656ded891f97b5b9e30e63697126
SHA1 hash:
c094da979b9903ff7d7f9a039c4e4e14b7a61233
Link:
https://www.unpac.me/results/d53fd2ff-cbab-46c5-86fc-9a161257fbd8/
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/a1637978bf5c17d54cd0447ec49ead040daeaf8e3bf58d84419ab8d0d05dbff5

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
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:win_stop_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.stop.
Rule name:XOREngine_Misc_XOR_Func
Create hunting rule
Author:smiller cc @florian @wesley idea on implementation with yara's built in XOR function
Description:Use with care, https://twitter.com/cyb3rops/status/1237042104406355968

File information

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

Web download

Stop

Executable exe a1637978bf5c17d54cd0447ec49ead040daeaf8e3bf58d84419ab8d0d05dbff5

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1978544/
Cape
Cape
https://www.capesandbox.com/analysis/219492/

Comments


Avatar
zbet commented on 2022-01-15 09:23:32 UTC

url : hxxp://kotob.top/dl/build.exe