MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ca3e078052da372b3238b78d311eca0dee9e82bb75d62773be05bc033ab0ea82. 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: 12


Intelligence 12 IOCs YARA 12 File information Comments
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SHA256 hash: ca3e078052da372b3238b78d311eca0dee9e82bb75d62773be05bc033ab0ea82
SHA3-384 hash: c79907439c0e591e0c6e34939ef1cc1689e77e186d1ea456f019a1cb79edcc490356f7b966975938ab1068c346ee1154
SHA1 hash: 53cd28e9e2487f32e660f421c1bcd2f6591622bd
MD5 hash: 4fcd7a7a8e5ac3afd21d849e8f6cde86
humanhash: uniform-table-sad-undress
File name:HEUR-Trojan-Ransom.MSIL.Agent.gen-ca3e078052da372b3238b78d311eca0dee9e82bb75d62773be05bc033ab0ea82
Download: download sample
Signature Chaos
Create hunting rule
File size:24'064 bytes
First seen:2022-09-20 05:02:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 384:W3Mg/bqo2N3xk+pVpkUM3LTAzkMJfr91Cb/9eg:kqo29xkupkvbTzEfr9UFeg
Threatray 2'586 similar samples on MalwareBazaar
TLSH T1A9B2D41867FA4A39F6FF2F786DB250415B75B853EE3DD74C188A004D0922B9C8DA0B67
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter petikvx
Tags:Chaos exe petikvx Ransomware

Intelligence

File Origin
# of uploads :
1
# of downloads :
382
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
DONT OPEN.exe
Verdict:
Malicious activity
Analysis date:
2021-09-13 21:39:12 UTC
Tags:
ransomware
Link:
https://app.any.run/tasks/1197dcd2-d208-41f9-a4f1-5b2bbca94a44

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/311524/
Detection(s):
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
Sending a custom TCP request
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:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
cmd.exe packed ransomware
Link:
https://www.filescan.io/uploads/632949d2b333b2ec6b3888d3/reports/a36f5c45-f857-4600-8448-89214d11a0e5/overview
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/f3324c16-16e3-47e6-9a4e-0562c86c3e89
Result
Threat name:
Chaos, TrojanRansom
Create hunting rule
Detection:
malicious
Classification:
rans.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1073388
Signature
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
Machine Learning detection for dropped file
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: 705930 Sample: 3ab0ea82.exe Startdate: 20/09/2022 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 6 other signatures 2->85 8 3ab0ea82.exe 4 2->8         started        12 svchost.exe 3 19 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\...\3ab0ea82.exe.log, ASCII 8->77 dropped 103 Drops PE files with benign system names 8->103 18 svchost.exe 36 8->18         started        105 Deletes shadow drive data (may be related to ransomware) 12->105 107 Uses bcdedit to modify the Windows boot settings 12->107 22 cmd.exe 1 12->22         started        24 cmd.exe 12->24         started        26 cmd.exe 12->26         started        28 notepad.exe 12->28         started        109 Creates files inside the volume driver (system volume information) 14->109 signatures5 process6 file7 65 C:\Users\user\Saved Games\read_it.txt, ASCII 18->65 dropped 67 C:\Users\user\Favorites\read_it.txt, ASCII 18->67 dropped 69 C:\Users\user\Favorites\Links\read_it.txt, ASCII 18->69 dropped 71 11 other malicious files 18->71 dropped 87 Antivirus detection for dropped file 18->87 89 Multi AV Scanner detection for dropped file 18->89 91 Machine Learning detection for dropped file 18->91 101 2 other signatures 18->101 30 cmd.exe 18->30         started        33 cmd.exe 18->33         started        35 cmd.exe 18->35         started        37 notepad.exe 18->37         started        93 May disable shadow drive data (uses vssadmin) 22->93 95 Deletes shadow drive data (may be related to ransomware) 22->95 97 Uses bcdedit to modify the Windows boot settings 22->97 39 WMIC.exe 1 22->39         started        41 conhost.exe 22->41         started        43 vssadmin.exe 1 22->43         started        45 3 other processes 24->45 99 Deletes the backup plan of Windows 26->99 47 2 other processes 26->47 signatures8 process9 signatures10 111 May disable shadow drive data (uses vssadmin) 30->111 113 Deletes shadow drive data (may be related to ransomware) 30->113 49 conhost.exe 30->49         started        51 vssadmin.exe 1 30->51         started        53 WMIC.exe 30->53         started        115 Uses bcdedit to modify the Windows boot settings 33->115 55 conhost.exe 33->55         started        57 bcdedit.exe 33->57         started        59 bcdedit.exe 33->59         started        117 Deletes the backup plan of Windows 35->117 61 conhost.exe 35->61         started        63 wbadmin.exe 35->63         started        process11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ca3e078052da372b3238b78d311eca0dee9e82bb75d62773be05bc033ab0ea82/
Threat name:
ByteCode-MSIL.Ransomware.HydraCrypt
Create hunting rule
Status:
Malicious
First seen:
2021-09-14 02:54:53 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
25 of 26 (96.15%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zi7apacs3i3swmryw6gtchwkbxxj5av3oxlco456aw6agovq5kba._file
Verdict:
malicious
Similar samples:
076ef4ca884b774579713f120329d8c3b7b973f41ff17a50f221cd3d3bbf1377
Chaos
543e39242762d61e740f9c22c173f914cf01dd88c22ad61e65d2c18d9f5162ca
Chaos
739b133a8f133943739c64ad32d4fafa701c2d89270c938db14f995f0abcdd70
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93a4d36a6e6ae87c790522b78f581e871cfec793e301c54e7a596c9561f9313c
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d9771a04128e50870a96bc7ac8605982205011b723810a04a3411a1ac7eba05d
Chaos
+ 2'576 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/220920-fppleafegr/
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
Drops desktop.ini file(s)
Checks computer location settings
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
Chaos
Chaos Ransomware
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/d4578cb7-4781-4d43-bd1e-fd84d4dcafeb
Unpacked files
SH256 hash:
ca3e078052da372b3238b78d311eca0dee9e82bb75d62773be05bc033ab0ea82
MD5 hash:
4fcd7a7a8e5ac3afd21d849e8f6cde86
SHA1 hash:
53cd28e9e2487f32e660f421c1bcd2f6591622bd
Link:
https://www.unpac.me/results/c8ca0b03-192e-4e73-9b10-b735b2ab1ab9/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ca3e078052da/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/ca3e078052da372b3238b78d311eca0dee9e82bb75d62773be05bc033ab0ea82

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:Destructive_Ransomware_Gen1
Create hunting rule
Author:Florian Roth
Description:Detects destructive malware
Reference:http://blog.talosintelligence.com/2018/02/olympic-destroyer.html
Rule name:Destructive_Ransomware_Gen1_RID31CB
Create hunting rule
Author:Florian Roth
Description:Detects destructive malware
Reference:http://blog.talosintelligence.com/2018/02/olympic-destroyer.html
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:RansomwareTest1
Create hunting rule
Author:Daoyuan Wu
Description:Test Ransomware YARA rules
Rule name:RansomwareTest2
Create hunting rule
Author:Daoyuan Wu
Description:Test Ransomware YARA rules
Rule name:RansomwareTest3
Create hunting rule
Author:Daoyuan Wu
Description:Test Ransomware YARA rules
Rule name:RansomwareTest4
Create hunting rule
Author:Daoyuan Wu
Description:Test Ransomware YARA rules
Rule name:RansomwareTest5
Create hunting rule
Author:Daoyuan Wu
Description:Test Ransomware YARA rules
Rule name:RansomwareTest6
Create hunting rule
Author:Daoyuan Wu
Description:Test Ransomware YARA rules
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/311524/

Comments