MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 076ef4ca884b774579713f120329d8c3b7b973f41ff17a50f221cd3d3bbf1377. 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: 13


Intelligence 13 IOCs YARA 4 File information Comments
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SHA256 hash: 076ef4ca884b774579713f120329d8c3b7b973f41ff17a50f221cd3d3bbf1377
SHA3-384 hash: 6e0ff2e418a23456c106511394bc3303b6db35e79b156f514d897f67df67a9164f9f82d278f2e82d92db5569d092e8d7
SHA1 hash: c17bb08354a29d87b5b682f67214167388daca00
MD5 hash: 81d1e7ed332cf75800f18848df764fe6
humanhash: oranges-berlin-fourteen-seventeen
File name:076ef4ca884b774579713f120329d8c3b7b973f41ff17a50f221cd3d3bbf1377
Download: download sample
Signature Chaos
Create hunting rule
File size:1'540'096 bytes
First seen:2022-01-17 06:48:42 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 12288:K/0F4QoLcwX5lzxTZWMhZA5fCcUDIuJ7S8Lmftj58PUu545/QGAulW5fAPlEX6V7:C0SOfpQ3KfrtlWvanJUWuivEqEn6NEO
Threatray 384 similar samples on MalwareBazaar
TLSH T11C655C2439FA901EF2B3EE669FD8B9DBDA6FB7332606546D1041034B4623D41DE8163E
File icon (PE):PE icon
dhash icon 674b03971c2e2e0f (1 x Chaos)
Reporter JAMESWT_WT
Tags:Chaos exe POLIZIA DI STATO POLIZIA_DI_STATO

Intelligence

File Origin
# of uploads :
1
# of downloads :
254
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
076ef4ca884b774579713f120329d8c3b7b973f41ff17a50f221cd3d3bbf1377
Verdict:
Malicious activity
Analysis date:
2022-01-17 07:07:24 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/02873a37-fe59-4f3e-9d39-152834c52201

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/219725/
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
Moving a recently created file
Changing a file
Modifying an executable file
Reading critical registry keys
Creating a file in the %AppData% subdirectories
Moving a file to the %AppData% subdirectory
Searching for the window
DNS request
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:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
cmd.exe control.exe obfuscated packed replace.exe wmic.exe
Link:
https://www.filescan.io/uploads/61e511610f8c757253c33fff/reports/3160db71-2296-4d1e-882e-91d564b72353/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/10d16407-4e26-4402-a05b-b08fc2ea84fa
Result
Threat name:
Polizia Ransomware
Create hunting rule
Detection:
malicious
Classification:
rans.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/921569
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
Machine Learning detection for dropped file
Machine Learning detection for sample
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 Polizia Ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 554048 Sample: XYlUjARJpr Startdate: 17/01/2022 Architecture: WINDOWS Score: 100 66 Sigma detected: WannaCry Ransomware 2->66 68 Antivirus / Scanner detection for submitted sample 2->68 70 Multi AV Scanner detection for submitted file 2->70 72 8 other signatures 2->72 8 XYlUjARJpr.exe 4 2->8         started        11 wbengine.exe 2->11         started        15 Premi_Si.exe 1 2->15         started        17 4 other processes 2->17 process3 dnsIp4 56 C:\Users\user\AppData\Roaming\Premi_Si.exe, PE32 8->56 dropped 58 C:\Users\...\Premi_Si.exe:Zone.Identifier, ASCII 8->58 dropped 60 C:\Users\user\AppData\...\XYlUjARJpr.exe.log, ASCII 8->60 dropped 19 Premi_Si.exe 3 46 8->19         started        64 192.168.2.1 unknown unknown 11->64 90 Creates files inside the volume driver (system volume information) 11->90 62 C:\Users\user\AppData\...\Premi_Si.exe.log, ASCII 15->62 dropped file5 signatures6 process7 file8 48 C:\Users\...\XYlUjARJpr.exe.polizia (copy), ASCII 19->48 dropped 50 C:\Users\user\Desktop\XYlUjARJpr.exe, ASCII 19->50 dropped 52 C:\Users\user\Desktop\...FOYFBOLXA.jpg, ASCII 19->52 dropped 54 3 other malicious files 19->54 dropped 74 Antivirus detection for dropped file 19->74 76 Multi AV Scanner detection for dropped file 19->76 78 Machine Learning detection for dropped file 19->78 80 3 other signatures 19->80 23 cmd.exe 1 19->23         started        26 cmd.exe 1 19->26         started        28 cmd.exe 19->28         started        30 notepad.exe 19->30         started        signatures9 process10 signatures11 82 May disable shadow drive data (uses vssadmin) 23->82 84 Deletes shadow drive data (may be related to ransomware) 23->84 86 Uses bcdedit to modify the Windows boot settings 23->86 32 WMIC.exe 1 23->32         started        34 conhost.exe 23->34         started        36 vssadmin.exe 1 23->36         started        38 bcdedit.exe 1 26->38         started        40 conhost.exe 26->40         started        42 bcdedit.exe 26->42         started        88 Deletes the backup plan of Windows 28->88 44 conhost.exe 28->44         started        46 wbadmin.exe 28->46         started        process12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/076ef4ca884b774579713f120329d8c3b7b973f41ff17a50f221cd3d3bbf1377/
Threat name:
ByteCode-MSIL.Ransomware.FileCoder
Create hunting rule
Status:
Malicious
First seen:
2022-01-15 14:37:44 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
37 of 43 (86.05%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=a5xpjsuijn3uk6lrh4jagkoyyo33s47ud7yxuuhsehgt2o57cn3q._file
Verdict:
malicious
Label(s):
ryuk
Create hunting rule
Similar samples:
076ef4ca884b774579713f120329d8c3b7b973f41ff17a50f221cd3d3bbf1377
Chaos
0d683d2e4fa69e5a5780ffcec285131df7d3467d0f5483ad7d1e918160817886
Chaos
1ba5ab55b7212ba92a9402677e30e45f12d98a98f78cdcf5864a67d6c264d053
Chaos
2169f4931cb7ddeffcb816a487491c0df2035162f3b6652352b42dbceaace7fd
Chaos
543e39242762d61e740f9c22c173f914cf01dd88c22ad61e65d2c18d9f5162ca
Chaos
b103fc649787eb1f6121df8174d0f16aaac736fb53f5f078d312871189285956
Chaos
db7681db479489fe2319d8eb00090749b4a56cb97cbe3c0f867a0f7a66a37f9f
Chaos
+ 374 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/220117-hlb71sghf4/
Behaviour
Checks processor information in registry
Interacts with shadow copies
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)
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
Unpacked files
SH256 hash:
076ef4ca884b774579713f120329d8c3b7b973f41ff17a50f221cd3d3bbf1377
MD5 hash:
81d1e7ed332cf75800f18848df764fe6
SHA1 hash:
c17bb08354a29d87b5b682f67214167388daca00
Link:
https://www.unpac.me/results/500b1365-bd6e-4230-9af5-318de7526453/
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/076ef4ca884b774579713f120329d8c3b7b973f41ff17a50f221cd3d3bbf1377

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/219725/

Comments