MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1ba5ab55b7212ba92a9402677e30e45f12d98a98f78cdcf5864a67d6c264d053. 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


Chaos


Vendor detections: 9


Intelligence 9 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1ba5ab55b7212ba92a9402677e30e45f12d98a98f78cdcf5864a67d6c264d053
SHA3-384 hash: 25dcb12576d3f964af63204f8eab06f7e03a0556e4706aa3aab88a1cec4cffd48e3c239438e344ba1d2d5846103f4dd5
SHA1 hash: f4807d71a1048d05815a09b74997f338e26ba9ff
MD5 hash: deb8f4311fd52319f6168c10b626c808
humanhash: glucose-cup-minnesota-hamper
File name:1ba5ab55b7212ba92a9402677e30e45f12d98a98f78cdcf5864a67d6c264d053
Download: download sample
Signature Chaos
Create hunting rule
File size:624'640 bytes
First seen:2021-09-06 06:44:10 UTC
Last seen:2023-05-08 17:49:36 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'609 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 6144:vOr9ptAkuoip7RLPIZ3s3FjC4nj5ImCEb:AAkuoK7RLPIoAZEb
Threatray 6 similar samples on MalwareBazaar
TLSH T161D4D01226F5705DF0E2EBB707D9A47BE4B9EEB9265E5C6632F133460231D024842BE7
dhash icon f0dcb263f0f4b2f0 (1 x Chaos)
Reporter JAMESWT_WT
Tags:Chaos exe

Intelligence

File Origin
# of uploads :
4
# of downloads :
191
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
1ba5ab55b7212ba92a9402677e30e45f12d98a98f78cdcf5864a67d6c264d053
Verdict:
Malicious activity
Analysis date:
2021-09-06 07:24:19 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/6563bf89-40c1-469d-a6c6-2e8cce92c8c6

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Chaos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/185588/
Detection(s):
Win.Ransomware.Hydracrypt-9878672-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching the default Windows debugger (dwwin.exe)
Sending a UDP request
Malware family:
CHAOS Ransomware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4b7372cb-fe6d-40a2-9d80-1223116f0633
Result
Threat name:
Unknown
Detection:
malicious
Classification:
rans.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/845803
Signature
.NET source code contains very large strings
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Creates files inside the volume driver (system volume information)
Deletes shadow drive data (may be related to ransomware)
Deletes the backup plan of Windows
Drops PE files with benign system names
Found ransom note / readme
Machine Learning detection for dropped file
Machine Learning detection for sample
May disable shadow drive data (uses vssadmin)
May encrypt documents and pictures (Ransomware)
Modifies existing user documents (likely ransomware behavior)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Copying Sensitive Files with Credential Data
Sigma detected: Drops script at startup location
Sigma detected: Modification of Boot Configuration
Sigma detected: Shadow Copies Deletion Using Operating Systems Utilities
Sigma detected: Suspicious Svchost Process
Sigma detected: System File Execution Location Anomaly
Sigma detected: WannaCry Ransomware
Uses bcdedit to modify the Windows boot settings
Writes a notice file (html or txt) to demand a ransom
Yara detected RansomwareGeneric
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 478231 Sample: z8wsTl1Pby Startdate: 06/09/2021 Architecture: WINDOWS Score: 100 63 Sigma detected: WannaCry Ransomware 2->63 65 Antivirus / Scanner detection for submitted sample 2->65 67 Multi AV Scanner detection for submitted file 2->67 69 11 other signatures 2->69 8 z8wsTl1Pby.exe 4 2->8         started        12 wbengine.exe 3 2->12         started        14 svchost.exe 1 2->14         started        16 4 other processes 2->16 process3 file4 55 C:\Users\user\AppData\Roaming\svchost.exe, PE32 8->55 dropped 57 C:\Users\user\...\svchost.exe:Zone.Identifier, ASCII 8->57 dropped 59 C:\Users\user\AppData\...\z8wsTl1Pby.exe.log, ASCII 8->59 dropped 87 Drops PE files with benign system names 8->87 18 svchost.exe 3 52 8->18         started        89 Creates files inside the volume driver (system volume information) 12->89 61 C:\Users\user\AppData\...\svchost.exe.log, ASCII 14->61 dropped signatures5 process6 file7 47 C:\Users\user\Links\README.txt, ASCII 18->47 dropped 49 C:\Users\user\Documents\README.txt, ASCII 18->49 dropped 51 C:\Users\user\Documents\...\README.txt, ASCII 18->51 dropped 53 11 other malicious files 18->53 dropped 71 Antivirus detection for dropped file 18->71 73 Multi AV Scanner detection for dropped file 18->73 75 Machine Learning detection for dropped file 18->75 77 5 other signatures 18->77 22 cmd.exe 1 18->22         started        25 cmd.exe 1 18->25         started        27 cmd.exe 1 18->27         started        29 notepad.exe 18->29         started        signatures8 process9 signatures10 79 May disable shadow drive data (uses vssadmin) 22->79 81 Deletes shadow drive data (may be related to ransomware) 22->81 83 Uses bcdedit to modify the Windows boot settings 22->83 31 WMIC.exe 1 22->31         started        33 conhost.exe 22->33         started        35 vssadmin.exe 1 22->35         started        37 bcdedit.exe 1 25->37         started        39 bcdedit.exe 1 25->39         started        41 conhost.exe 25->41         started        85 Deletes the backup plan of Windows 27->85 43 conhost.exe 27->43         started        45 wbadmin.exe 3 27->45         started        process11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1ba5ab55b7212ba92a9402677e30e45f12d98a98f78cdcf5864a67d6c264d053/
Threat name:
ByteCode-MSIL.Ransomware.HiddenTear
Create hunting rule
Status:
Malicious
First seen:
2021-09-05 09:59:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
30 of 43 (69.77%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=dos2wvnxeev2skuuajtx4mhel4jntcuy66gnz5mgjjt5nqte2bjq._file
Verdict:
malicious
Similar samples:
2169f4931cb7ddeffcb816a487491c0df2035162f3b6652352b42dbceaace7fd
Chaos
b103fc649787eb1f6121df8174d0f16aaac736fb53f5f078d312871189285956
Chaos
d09b875ead838ec256b863b5e8e252d5bca9172b5479b00699ff31b4d745c92b
Chaos
Result
Malware family:
n/a
Score:
  10/10
Tags:
evasion ransomware spyware stealer
Link:
https://tria.ge/reports/210906-hhm54safa3/
Behaviour
Checks SCSI registry key(s)
Interacts with shadow copies
Modifies registry class
Opens file in notepad (likely ransom note)
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Sets desktop wallpaper using registry
Drops desktop.ini file(s)
Drops startup file
Reads user/profile data of web browsers
Deletes backup catalog
Executes dropped EXE
Modifies extensions of user files
Deletes shadow copies
Modifies boot configuration data using bcdedit
Unpacked files
SH256 hash:
1ba5ab55b7212ba92a9402677e30e45f12d98a98f78cdcf5864a67d6c264d053
MD5 hash:
deb8f4311fd52319f6168c10b626c808
SHA1 hash:
f4807d71a1048d05815a09b74997f338e26ba9ff
Link:
https://www.unpac.me/results/748729c7-f2cd-490e-9320-5f734070019f/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/1ba5ab55b721/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/1ba5ab55b7212ba92a9402677e30e45f12d98a98f78cdcf5864a67d6c264d053

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_GENRansomware
Create hunting rule
Author:ditekSHen
Description:detects command variations typically used by ransomware
Rule name:pe_imphash
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

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/185588/

Comments