MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 824a76c39895bc3ad4f5dfc27fc3ac80d26514118c4669505a1f0cfdc8fdbcdc. 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


Zeppelin


Vendor detections: 11


Intelligence 11 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 824a76c39895bc3ad4f5dfc27fc3ac80d26514118c4669505a1f0cfdc8fdbcdc
SHA3-384 hash: 5ab05174e46e7eb509ec0ce51a58310850a7229a2dc2a433c517655324270c53b9ac5b79b47988b0812be069f2ed85f6
SHA1 hash: fd127c6ecaee57972b7acc3b8e4a2d3b25f928e0
MD5 hash: dcef208fcdac3345c6899a478d16980f
humanhash: winner-paris-failed-triple
File name:pattern.exe
Download: download sample
Signature Zeppelin
Create hunting rule
File size:425'984 bytes
First seen:2021-08-31 16:32:29 UTC
Last seen:2021-08-31 16:42:58 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 940ad5caeeb0db96261588d30309b3ae (1 x Zeppelin)
ssdeep 6144:iYdiLQNWloaXoLJYksETr0vpvejH6ols25A0LJjI4WHB/N7:BiLQqosgZs+8vejap0LJ6h
TLSH T143947E3B7212C049DAAC15B263C70F741AB79CEEB5A4554FABE1271A1AFB3C43C62744
Reporter abuse_ch
Tags:buran exe Ransomware VegaLocker Zeppelin


Avatar
abuse_ch
Buran payload URLs:
https://jolantagraban.pl/log/57843441668980/dll/assistant.php
https://jolantagraban.pl/log/57843441668980/pattern.exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
2'430
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
pattern.exe
Verdict:
Malicious activity
Analysis date:
2021-08-31 16:36:40 UTC
Tags:
ransomware zeppelin evasion trojan buran
Link:
https://app.any.run/tasks/5e74bc25-136c-49bb-85b3-86cc1f482edb

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Zeppelin
Create hunting rule
Link:
https://www.capesandbox.com/analysis/184260/
Detection(s):
SecuriteInfo.com.W32.AIDetect.malware2.4410.5006.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Connection attempt
Sending an HTTP GET request
Sending a custom TCP request
Creating a file in the %temp% directory
Deleting a recently created file
Creating a file in the %AppData% subdirectories
Creating a process from a recently created file
Launching a process
Sending a UDP request
Creating a file
Running batch commands
Creating a process with a hidden window
Changing a file
Creating a file in the Program Files directory
Creating a file in the Program Files subdirectories
Moving a file to the Program Files subdirectory
Modifying an executable file
Launching a service
Delayed reading of the file
Delayed writing of the file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Creating a file in the mass storage device
Deleting volume shadow copies
Unauthorized injection to a system process
Deleting of the original file
Encrypting user's files
Malware family:
Zeppelin Ransomware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/50c4e20e-230c-4f9e-a7fa-5a1fc8961dcd
Result
Threat name:
Zeppelin
Create hunting rule
Detection:
malicious
Classification:
rans.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/842815
Signature
Allocates memory in foreign processes
Contains functionality to inject threads in other processes
Creates a thread in another existing process (thread injection)
Creates executable files without a name
Creates files in the recycle bin to hide itself
Deletes itself after installation
Deletes shadow drive data (may be related to ransomware)
Detected unpacking (changes PE section rights)
Drops a file containing file decryption instructions (likely related to ransomware)
Found ransom note / readme
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
May encrypt documents and pictures (Ransomware)
Modifies existing user documents (likely ransomware behavior)
Multi AV Scanner detection for dropped file
Sample is not signed and drops a device driver
Sigma detected: Copying Sensitive Files with Credential Data
Sigma detected: Shadow Copies Deletion Using Operating Systems Utilities
Sigma detected: WannaCry Ransomware
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses bcdedit to modify the Windows boot settings
Writes many files with high entropy
Writes to foreign memory regions
Yara detected RansomwareGeneric
Yara detected Zeppelin Ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 475244 Sample: pattern.exe Startdate: 31/08/2021 Architecture: WINDOWS Score: 100 66 geoiptool.com 2->66 68 www.geodatatool.com 2->68 86 Sigma detected: WannaCry Ransomware 2->86 88 Malicious sample detected (through community Yara rule) 2->88 90 Found ransom note / readme 2->90 94 7 other signatures 2->94 9 pattern.exe 2 18 2->9         started        14 taskeng.exe 15 2->14         started        signatures3 92 May check the online IP address of the machine 66->92 process4 dnsIp5 70 www.geodatatool.com 158.69.65.151, 443, 49707, 49708 OVHFR Canada 9->70 72 geoiptool.com 9->72 56 C:\Users\user\AppData\Roaming\...\taskeng.exe, PE32 9->56 dropped 58 C:\Users\user\...\taskeng.exe:Zone.Identifier, ASCII 9->58 dropped 106 Detected unpacking (changes PE section rights) 9->106 108 May check the online IP address of the machine 9->108 110 Contains functionality to inject threads in other processes 9->110 112 3 other signatures 9->112 16 taskeng.exe 4 16 9->16         started        20 notepad.exe 9->20         started        74 geoiptool.com 14->74 file6 signatures7 process8 dnsIp9 60 iplogger.org 88.99.66.31, 443, 49711, 49712 HETZNER-ASDE Germany 16->60 62 www.geodatatool.com 16->62 64 geoiptool.com 16->64 76 Multi AV Scanner detection for dropped file 16->76 78 Detected unpacking (changes PE section rights) 16->78 80 May check the online IP address of the machine 16->80 84 4 other signatures 16->84 22 taskeng.exe 1 501 16->22         started        26 cmd.exe 1 16->26         started        28 cmd.exe 1 16->28         started        30 4 other processes 16->30 82 Deletes itself after installation 20->82 signatures10 process11 file12 48 C:\Users\user\Desktop\PIVFAGEAAV.docx, Unknown 22->48 dropped 50 C:\Users\user\DesktopEGWXUHVUG.xlsx, Unknown 22->50 dropped 52 C:\Users\user\Desktop\...EGWXUHVUG.xlsx, Unknown 22->52 dropped 54 118 other malicious files 22->54 dropped 96 Creates files in the recycle bin to hide itself 22->96 98 Drops a file containing file decryption instructions (likely related to ransomware) 22->98 100 May encrypt documents and pictures (Ransomware) 22->100 104 3 other signatures 22->104 102 Deletes shadow drive data (may be related to ransomware) 26->102 32 conhost.exe 26->32         started        34 WMIC.exe 26->34         started        36 WMIC.exe 1 28->36         started        38 conhost.exe 28->38         started        40 conhost.exe 30->40         started        42 conhost.exe 30->42         started        44 conhost.exe 30->44         started        46 2 other processes 30->46 signatures13 process14
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/824a76c39895bc3ad4f5dfc27fc3ac80d26514118c4669505a1f0cfdc8fdbcdc/
Threat name:
Win32.Ransomware.Zeppelin
Create hunting rule
Status:
Malicious
First seen:
2021-08-31 16:33:15 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
21 of 28 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qjfhnq4ysw6dvvhv37bh7q5mqdjgkfarrrdgsuc2d4gp3sh5xtoa._file
Result
Malware family:
buran
Create hunting rule
Score:
  10/10
Tags:
family:buran persistence ransomware
Link:
https://tria.ge/reports/210831-ks2vgqr76e/
Behaviour
Interacts with shadow copies
Modifies system certificate store
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Adds Run key to start application
Enumerates connected drives
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Deletes itself
Loads dropped DLL
Executes dropped EXE
Modifies extensions of user files
Deletes shadow copies
Buran
Unpacked files
SH256 hash:
cb002fbb615b9fe3c70b61ec7855cc2ea5ad07cd68aa2505f45cd095027659cb
MD5 hash:
41881ef404d34322d6f278b0f210f889
SHA1 hash:
772a9989bdc67c465250feb744ea9c05ffc4bfe2
Detections:
win_zeppelin_auto
Create hunting rule
Link:
https://www.unpac.me/results/070ce599-2044-43fc-9421-fed896bd3fc4/
SH256 hash:
824a76c39895bc3ad4f5dfc27fc3ac80d26514118c4669505a1f0cfdc8fdbcdc
MD5 hash:
dcef208fcdac3345c6899a478d16980f
SHA1 hash:
fd127c6ecaee57972b7acc3b8e4a2d3b25f928e0
Link:
https://www.unpac.me/results/070ce599-2044-43fc-9421-fed896bd3fc4/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/824a76c39895/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/824a76c39895bc3ad4f5dfc27fc3ac80d26514118c4669505a1f0cfdc8fdbcdc

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:Ran_Buran_Oct_2020_1
Create hunting rule
Author:Arkbird_SOLG
Description:Detect Buran ransomware
Reference:https://twitter.com/JAMESWT_MHT/status/1323956405976600579
Rule name:Win32_Ransomware_Zeppelin
Create hunting rule
Author:ReversingLabs
Description:Yara rule that detects Zeppelin ransomware.
Rule name:win_zeppelin_ransomware_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator
Rule name:Zeppelin
Create hunting rule
Author:@bartblaze
Description:Identifies Zeppelin ransomware and variants (Buran, Vega etc.)

File information

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

Buran

Java Script (JS) js 70ec3d6d6a6978bd21bd40b4e3e3a569d48b05fac0a7a8765753704d4197bfa2

Zeppelin

Executable exe 824a76c39895bc3ad4f5dfc27fc3ac80d26514118c4669505a1f0cfdc8fdbcdc

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/host/jolantagraban.pl/
  
Dropped by
MD5 eea189749c6dcf6c8c04205ab60bb53c
  
Dropped by
SHA256 70ec3d6d6a6978bd21bd40b4e3e3a569d48b05fac0a7a8765753704d4197bfa2
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1580919/
Cape
Cape
https://www.capesandbox.com/analysis/184260/
  
URLhaus
https://urlhaus.abuse.ch/url/1581004/

Comments