MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 db7681db479489fe2319d8eb00090749b4a56cb97cbe3c0f867a0f7a66a37f9f. 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: 11


Intelligence 11 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: db7681db479489fe2319d8eb00090749b4a56cb97cbe3c0f867a0f7a66a37f9f
SHA3-384 hash: 6cc34f4090d83286dcf8fe2ef60c768ae7a9ce429a69f25389e4d46838d77f0881e86e2980bceeea67e3c6bd57f76115
SHA1 hash: b7bc26891ca7d215af1e0336420ef1d2c15ddd5e
MD5 hash: 4a15cf91524eef1b6061a9733735e2b9
humanhash: georgia-foxtrot-double-paris
File name:War.exe
Download: download sample
Signature Chaos
Create hunting rule
File size:83'456 bytes
First seen:2021-10-16 14:03:57 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'750 x AgentTesla, 19'653 x Formbook, 12'248 x SnakeKeylogger)
ssdeep 1536:to2i/5jKp8r9SPkrJRXuFwzQcegX5HKKSEiz/z9ZPkUiY0vf9EdRbLNWV:toZ5jKp8r9S89RXAm35HKKvI7PtiYW6t
Threatray 10 similar samples on MalwareBazaar
TLSH T1628351243EFB8029F173BF7A5BE47597DE6EBA233B0B94591091034A4613E81DD9063E
File icon (PE):PE icon
dhash icon e8e8e8e8aa62a489 (8 x RaccoonStealer, 6 x RedLineStealer, 2 x Tofsee)
Reporter Anonymous
Tags:Chaos exe Ransomware

Intelligence

File Origin
# of uploads :
1
# of downloads :
661
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
War.exe
Verdict:
Malicious activity
Analysis date:
2021-10-16 14:02:16 UTC
Tags:
ransomware
Link:
https://app.any.run/tasks/0a8ddb53-9a50-4329-9e3b-2b76ebb016b9

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/197872/
Detection(s):
Win.Ransomware.Hydracrypt-9878672-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %AppData% directory
Creating a window
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
80%
Tags:
filecoder hiddentear hydracrypt obfuscated packed ransomware
Link:
https://www.filescan.io/uploads/616adbd5db358dd15ebd26f2/reports/17fcf5ef-c743-4a2b-b785-1a9f58101cdb/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/e67f2134-0376-42f9-950c-1868b3047738
Result
Threat name:
Unknown
Detection:
malicious
Classification:
rans.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/871633
Signature
.NET source code contains very large strings
Creates files inside the volume driver (system volume information)
Deletes shadow drive data (may be related to ransomware)
Deletes the backup plan of Windows
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: 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: WannaCry Ransomware
Uses bcdedit to modify the Windows boot settings
Yara detected RansomwareGeneric
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 504057 Sample: War.exe Startdate: 16/10/2021 Architecture: WINDOWS Score: 100 63 Sigma detected: WannaCry Ransomware 2->63 65 Malicious sample detected (through community Yara rule) 2->65 67 Multi AV Scanner detection for submitted file 2->67 69 8 other signatures 2->69 8 War.exe 4 2->8         started        11 wbengine.exe 3 2->11         started        14 Microsoft.exe 1 2->14         started        16 4 other processes 2->16 process3 file4 55 C:\Users\user\AppData\Roaming\Microsoft.exe, PE32 8->55 dropped 57 C:\Users\...\Microsoft.exe:Zone.Identifier, ASCII 8->57 dropped 59 C:\Users\user\AppData\Local\...\War.exe.log, ASCII 8->59 dropped 18 Microsoft.exe 3 48 8->18         started        87 Creates files inside the volume driver (system volume information) 11->87 61 C:\Users\user\AppData\...\Microsoft.exe.log, ASCII 14->61 dropped signatures5 process6 file7 47 C:\Users\user\Desktop\...\IZMFBFKMEB.docx, ASCII 18->47 dropped 49 C:\Users\user\DesktopbehaviorgraphNLQNHOLWB.pdf, ASCII 18->49 dropped 51 C:\Users\user\Desktop\BQJUWOYRTO.docx, ASCII 18->51 dropped 53 C:\Users\user\AppData\...\Microsoft.url, MS 18->53 dropped 71 Multi AV Scanner detection for dropped file 18->71 73 Machine Learning detection for dropped file 18->73 75 Deletes shadow drive data (may be related to ransomware) 18->75 77 2 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/db7681db479489fe2319d8eb00090749b4a56cb97cbe3c0f867a0f7a66a37f9f/
Threat name:
ByteCode-MSIL.Ransomware.HiddenTear
Create hunting rule
Status:
Malicious
First seen:
2021-10-16 14:04:07 UTC
AV detection:
22 of 28 (78.57%)
Threat level:
  5/5
Verdict:
malicious
Similar samples:
0d683d2e4fa69e5a5780ffcec285131df7d3467d0f5483ad7d1e918160817886
Chaos
1ba5ab55b7212ba92a9402677e30e45f12d98a98f78cdcf5864a67d6c264d053
Chaos
2169f4931cb7ddeffcb816a487491c0df2035162f3b6652352b42dbceaace7fd
Chaos
b103fc649787eb1f6121df8174d0f16aaac736fb53f5f078d312871189285956
Chaos
b821dfddfa068a22242f12ed836ca39dfcca18764ccc29698014c1d0454386a5
Chaos
d09b875ead838ec256b863b5e8e252d5bca9172b5479b00699ff31b4d745c92b
Chaos
Result
Malware family:
n/a
Score:
  10/10
Tags:
evasion ransomware spyware stealer
Link:
https://tria.ge/reports/211016-rc975acgfk/
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:
db7681db479489fe2319d8eb00090749b4a56cb97cbe3c0f867a0f7a66a37f9f
MD5 hash:
4a15cf91524eef1b6061a9733735e2b9
SHA1 hash:
b7bc26891ca7d215af1e0336420ef1d2c15ddd5e
Link:
https://www.unpac.me/results/edd84b07-bd9e-4f3d-a7ed-0ae69a7b9ddd/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/db7681db4794/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/db7681db479489fe2319d8eb00090749b4a56cb97cbe3c0f867a0f7a66a37f9f

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: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.

Web download

Chaos

Executable exe db7681db479489fe2319d8eb00090749b4a56cb97cbe3c0f867a0f7a66a37f9f

(this sample)

anyrun
any.run
https://app.any.run/tasks/0a8ddb53-9a50-4329-9e3b-2b76ebb016b9
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/197872/

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