MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1b4d73a9a7c6d2163e7378c97f01fed223be9daa6acb71c81b11491907473f89. 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: 15


Intelligence 15 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1b4d73a9a7c6d2163e7378c97f01fed223be9daa6acb71c81b11491907473f89
SHA3-384 hash: 92a7c0c1825bda6b7a310a1f80acaed1443115928059dd277793682d58dd39482827df8fe6861a87b3bc621e0f1d453b
SHA1 hash: b63dd1f2e35d8944dee745321643f06037dfe95e
MD5 hash: 2d23c83d6941cf484da19d4367c02df0
humanhash: cold-pennsylvania-potato-paris
File name:2023-04-15_2d23c83d6941cf484da19d4367c02df0_wannacry
Download: download sample
Signature Chaos
Create hunting rule
File size:501'760 bytes
First seen:2023-04-16 02:58:52 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'604 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:wIOfQgbI1D/Tj7MACdotmELTtqGJouy9JtsmRrTNaTI7rERFUZ1K1s9L01:rt0v4yPpS
Threatray 1'045 similar samples on MalwareBazaar
TLSH T108B4AC242AF7D019F1F3AE3D9AD439579A5E7F622B0694AF207103894623982DDC353F
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 44cebaf0f0a2cc44 (1 x njrat, 1 x Chaos)
Reporter petikvx
Tags:Chaos

Intelligence

File Origin
# of uploads :
1
# of downloads :
148
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
2023-04-15_2d23c83d6941cf484da19d4367c02df0_wannacry
Verdict:
Malicious activity
Analysis date:
2023-04-16 03:00:54 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/83104656-e208-49e1-8fae-16274c26aa53

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/382532/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.972-1.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.29038.UNOFFICIAL
Create hunting rule

Win.Ransomware.Hydracrypt-9878672-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %AppData% directory
Сreating synchronization primitives
Creating a process from a recently created file
Creating a file
Moving a recently created file
Changing a file
Reading critical registry keys
Creating a file in the %AppData% subdirectories
Moving a file to the %AppData% subdirectory
Unauthorized injection to a recently created process
Creating a file in the mass storage device
Stealing user critical data
Enabling autorun by creating a file
Encrypting user's files
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cmd.exe packed ransomware
Link:
https://www.filescan.io/uploads/643b6477f4a1f6ede14ef614/reports/5f1f48f4-ca49-4dc5-a74c-779e685f9098/overview
Verdict:
Malicious
Labled as:
IL:Trojan.MSILZilla
Link:
https://www.hybrid-analysis.com/sample/1b4d73a9a7c6d2163e7378c97f01fed223be9daa6acb71c81b11491907473f89
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.
Malware family:
CHAOS Ransomware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/40e946ff-0945-416a-a6e3-c0797cda11b7
Result
Threat name:
Chaos, TrojanRansom
Create hunting rule
Detection:
malicious
Classification:
rans.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1214497
Signature
.NET source code contains very large strings
Antivirus / Scanner detection for submitted sample
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 Tor onion address
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May disable shadow drive data (uses vssadmin)
Modifies existing user documents (likely ransomware behavior)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Delete shadow copy via WMIC
Sigma detected: Drops script at startup location
Uses bcdedit to modify the Windows boot settings
Writes a notice file (html or txt) to demand a ransom
Yara detected Chaos Ransomware
Yara detected TrojanRansom
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 847425 Sample: 2O9Ib6QsSh.exe Startdate: 16/04/2023 Architecture: WINDOWS Score: 100 79 Malicious sample detected (through community Yara rule) 2->79 81 Antivirus / Scanner detection for submitted sample 2->81 83 Multi AV Scanner detection for submitted file 2->83 85 8 other signatures 2->85 8 2O9Ib6QsSh.exe 4 2->8         started        12 svchost.exe 7 2->12         started        14 wbengine.exe 2->14         started        16 4 other processes 2->16 process3 file4 73 C:\Users\user\AppData\Roaming\svchost.exe, PE32 8->73 dropped 75 C:\Users\user\...\svchost.exe:Zone.Identifier, ASCII 8->75 dropped 77 C:\Users\user\AppData\...\2O9Ib6QsSh.exe.log, CSV 8->77 dropped 101 Drops PE files with benign system names 8->101 18 svchost.exe 3 50 8->18         started        103 Deletes shadow drive data (may be related to ransomware) 12->103 105 Uses bcdedit to modify the Windows boot settings 12->105 22 cmd.exe 12->22         started        24 cmd.exe 12->24         started        26 cmd.exe 12->26         started        28 notepad.exe 12->28         started        107 Creates files inside the volume driver (system volume information) 14->107 signatures5 process6 file7 65 C:\Users\user\Desktop\...\WKXEWIOTXI.jpg, ASCII 18->65 dropped 67 C:\Users\user\Desktop\...\Fucking_it.txt, ASCII 18->67 dropped 69 C:\Users\user\Desktop\...\RAYHIWGKDI.png, ASCII 18->69 dropped 71 11 other malicious files 18->71 dropped 87 Multi AV Scanner detection for dropped file 18->87 89 Deletes shadow drive data (may be related to ransomware) 18->89 91 Writes a notice file (html or txt) to demand a ransom 18->91 93 Modifies existing user documents (likely ransomware behavior) 18->93 30 cmd.exe 1 18->30         started        33 cmd.exe 1 18->33         started        35 cmd.exe 18->35         started        37 notepad.exe 18->37         started        95 May disable shadow drive data (uses vssadmin) 22->95 39 conhost.exe 22->39         started        41 vssadmin.exe 22->41         started        43 WMIC.exe 22->43         started        97 Uses bcdedit to modify the Windows boot settings 24->97 45 3 other processes 24->45 99 Deletes the backup plan of Windows 26->99 47 2 other processes 26->47 signatures8 process9 signatures10 109 May disable shadow drive data (uses vssadmin) 30->109 111 Deletes shadow drive data (may be related to ransomware) 30->111 113 Uses bcdedit to modify the Windows boot settings 30->113 49 WMIC.exe 1 30->49         started        51 conhost.exe 30->51         started        53 vssadmin.exe 1 30->53         started        55 bcdedit.exe 8 1 33->55         started        57 bcdedit.exe 7 1 33->57         started        59 conhost.exe 33->59         started        115 Deletes the backup plan of Windows 35->115 61 conhost.exe 35->61         started        63 wbadmin.exe 35->63         started        process11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1b4d73a9a7c6d2163e7378c97f01fed223be9daa6acb71c81b11491907473f89/
Threat name:
ByteCode-MSIL.Ransomware.FileCoder
Create hunting rule
Status:
Malicious
First seen:
2023-04-13 15:49:56 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
32 of 37 (86.49%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=dngxhknhy3jbmpttpdex6ap62ir35hnknlfxdsa3cfersb2hh6eq._file
Verdict:
malicious
Similar samples:
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Chaos
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eb8302fbd0a3eda7620c0af1728a5d151afe1648d07525862c3701fc34c36d63
Chaos
+ 1'035 additional samples on MalwareBazaar
Result
Malware family:
chaos
Create hunting rule
Score:
  10/10
Tags:
family:chaos evasion ransomware spyware stealer
Link:
https://tria.ge/reports/230416-dgq36agf76/
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
Uses Task Scheduler COM API
Uses Volume Shadow Copy service COM API
Enumerates physical storage devices
Sets desktop wallpaper using registry
Drops desktop.ini file(s)
Checks computer location settings
Drops startup file
Executes dropped EXE
Reads user/profile data of web browsers
Deletes backup catalog
Modifies extensions of user files
Deletes shadow copies
Modifies boot configuration data using bcdedit
Chaos
Chaos Ransomware
Unpacked files
SH256 hash:
1b4d73a9a7c6d2163e7378c97f01fed223be9daa6acb71c81b11491907473f89
MD5 hash:
2d23c83d6941cf484da19d4367c02df0
SHA1 hash:
b63dd1f2e35d8944dee745321643f06037dfe95e
Detections:
ChaosRansomware
Create hunting rule
Link:
https://www.unpac.me/results/875ff037-7d40-4b88-b158-2db99091c5b8/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/1b4d73a9a7c6/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.95
Link:
https://yomi.yoroi.company/submissions/1b4d73a9a7c6d2163e7378c97f01fed223be9daa6acb71c81b11491907473f89

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:MALWARE_Win_Chaos
Create hunting rule
Author:ditekSHen
Description:Detects Chaos ransomware
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/382532/

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