MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4cfb6842146846fca052d82cc0f80e23c3a7b23bd5958aecfa6a21e28825a1f0. 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


LegionLocker


Vendor detections: 10


Intelligence 10 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4cfb6842146846fca052d82cc0f80e23c3a7b23bd5958aecfa6a21e28825a1f0
SHA3-384 hash: d863f549d34e4218b0976bf1396c5dfb5186384f96ffe88d7677652e4bc0d04caa24f1781f9efe851ad91bfc2609c757
SHA1 hash: c099a07b701c1f06709e181481a5938f9b6e001a
MD5 hash: d48b80eadbbe9bfb68f3fbe11a6cf0e5
humanhash: hawaii-beer-snake-pip
File name:LegionLocker.exe
Download: download sample
Signature LegionLocker
Create hunting rule
File size:3'261'236 bytes
First seen:2021-03-26 18:26:59 UTC
Last seen:2021-03-26 20:31:44 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 4328f7206db519cd4e82283211d98e83 (533 x RedLineStealer, 18 x Arechclient2, 15 x DCRat)
ssdeep 98304:RUqA6Sp+ZIogCxfwijqisUzS5Q1J6KtqxxwwpJKILMWv:NAOC/MINxxVpEpW
Threatray 2'093 similar samples on MalwareBazaar
TLSH F4E533634C246671DBBE623F4A6DE101A3506E0415E9B9D3F15EF0A06DB3DF28F62C98
Reporter Finch39487976
Tags:LegionLocker Ransomware

Intelligence

File Origin
# of uploads :
2
# of downloads :
344
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
LegionLocker.exe
Verdict:
Malicious activity
Analysis date:
2021-03-26 17:50:03 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/ed26626c-0480-419f-901d-fddf5f099ce3

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/127191/
Detection(s):
SecuriteInfo.com.W32.AIDetect.malware1.10057.15951.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for analyzing tools
Searching for the window
Sending a UDP request
Creating a window
Launching cmd.exe command interpreter
Creating a process with a hidden window
Using the Windows Management Instrumentation requests
Modifying an executable file
Changing a file
Reading critical registry keys
Launching a tool to kill processes
Forced shutdown of a system process
Stealing user critical data
Encrypting user's files
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:
Clay Ransomware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0358f1fc-4a4f-4a9d-83a8-a0008ce89bbc
Result
Threat name:
Cobra Locker
Create hunting rule
Detection:
malicious
Classification:
rans.evad
Score:
84 / 100
Link:
https://www.joesandbox.com/analysis/655371
Signature
Detected unpacking (changes PE section rights)
Hides threads from debuggers
Machine Learning detection for sample
Modifies existing user documents (likely ransomware behavior)
PE file contains section with special chars
Query firmware table information (likely to detect VMs)
Tries to detect sandboxes / dynamic malware analysis system (registry check)
Tries to detect sandboxes and other dynamic analysis tools (window names)
Yara detected Cobra Locker ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 376616 Sample: LegionLocker.exe Startdate: 26/03/2021 Architecture: WINDOWS Score: 84 41 Yara detected Cobra Locker ransomware 2->41 43 Machine Learning detection for sample 2->43 45 PE file contains section with special chars 2->45 7 LegionLocker.exe 4 2->7         started        process3 file4 35 C:\Users\user\Desktop\DQOFHVHTMG.xlsx, data 7->35 dropped 37 C:\Users\user\Desktop\BUFZSQPCOH.jpg, data 7->37 dropped 39 C:\Users\user\Desktop\BQJUWOYRTO.png, data 7->39 dropped 47 Detected unpacking (changes PE section rights) 7->47 49 Query firmware table information (likely to detect VMs) 7->49 51 Tries to detect sandboxes and other dynamic analysis tools (window names) 7->51 53 3 other signatures 7->53 11 cmd.exe 1 7->11         started        13 cmd.exe 1 7->13         started        15 cmd.exe 1 7->15         started        17 16 other processes 7->17 signatures5 process6 process7 19 taskkill.exe 1 11->19         started        21 conhost.exe 11->21         started        23 conhost.exe 13->23         started        25 conhost.exe 15->25         started        27 conhost.exe 17->27         started        29 conhost.exe 17->29         started        31 conhost.exe 17->31         started        33 13 other processes 17->33
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4cfb6842146846fca052d82cc0f80e23c3a7b23bd5958aecfa6a21e28825a1f0/
Threat name:
Win32.Ransomware.Encoder
Create hunting rule
Status:
Malicious
First seen:
2021-03-26 18:27:05 UTC
AV detection:
14 of 29 (48.28%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jt5wqqqunbdpzics3awmb6aoepb2pmr32wkyv3h2niq6fcbfuhya._file
Verdict:
malicious
Similar samples:
13409a886c8f0bd8a991f67ce2d8864dec2574fc456f3179d0332026606546aa
LegionLocker
146dd15ab549f6a0691c3a728602ce283825b361aa825521252c94e4a8bd94b4
LegionLocker
752abe1050403b95676de500b60db8b36e26f02e4b24eb84ae9f4daf6d03b957
LegionLocker
9237e5cae5f698d5ad9f6c61af8bd866e599abb05f5bc49474d98e269a29a588
LegionLocker
a53dac7e98824879e0571fbac851d515d9727c41ee7b13148cf99433e6a6b9ae
LegionLocker
a78df3ea7c9bcf96c6c9db033be7a66d9c418c1acfa3c8efc3c4ba313c5b4fad
LegionLocker
ad3c67acd7773a47ac0d46c544f1bcaa03ddbeb577b195e66fc4a15cd4413dab
LegionLocker
c0e6f7a4aa809d2b93ba137245380ada0a44ac5576935e13e165d02b1b937583
LegionLocker
d367eca88434cb310aad91f251c9baa7d11fcd2ffd2c0f0cbb35595445a27698
LegionLocker
fdf5f9635c047cde3c096139490f3462d03434986b1450ca5f01be74e1f5b559
LegionLocker
+ 2'083 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  9/10
Tags:
evasion ransomware themida trojan
Link:
https://tria.ge/reports/210326-81cwbeya4x/
Behaviour
Kills process with taskkill
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of NtSetInformationThreadHideFromDebugger
Checks whether UAC is enabled
Drops desktop.ini file(s)
Checks BIOS information in registry
themida
Modifies extensions of user files
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Unpacked files
SH256 hash:
adf851e445f68f308fd69bd69d03aaaa2120226e18de5bf08069e23935e6ef47
MD5 hash:
3a3c5f541caefef510eebf82a4d9dc03
SHA1 hash:
84dfd351983c45a42b2fa7760fbd86d749d44854
Link:
https://www.unpac.me/results/b11d3d7b-91c7-460f-8945-8c9a163ed8f8/
SH256 hash:
c51747d7ab6241e39347ea2df8b69c6485e7cbd50ce1b703ba32d0367217a707
MD5 hash:
a36f2331916ea72b1ff0d3dd1c13de84
SHA1 hash:
801cfc7a29246a81ed93ba65baa1d4dfbe80d1a6
Link:
https://www.unpac.me/results/b11d3d7b-91c7-460f-8945-8c9a163ed8f8/
SH256 hash:
00dcdb2835fc611a56ad3cd541a2a9f55e35ed38a31a194ea383994cf13d397f
MD5 hash:
48f37951b1d33c2f7a7a095249863ef8
SHA1 hash:
7b0cbb4e1e79f9175e5da3596175673605c3c9e8
Link:
https://www.unpac.me/results/b11d3d7b-91c7-460f-8945-8c9a163ed8f8/
SH256 hash:
d44c45ee375a39e9dc52c3341e30deca5e2cc1e51b0effe2da608ca1238dd553
MD5 hash:
6313a9be947b77e0c6d445bdedff8370
SHA1 hash:
387016eedca31423d2f680d77ca87149f7cc8630
Link:
https://www.unpac.me/results/b11d3d7b-91c7-460f-8945-8c9a163ed8f8/
SH256 hash:
00b9c0120df0595184523a3620ef9b3c3e11fc0e61d366d7eeabb646647cfceb
MD5 hash:
bd1f243ee2140f2f6118a7754ea02a63
SHA1 hash:
cdf7dd7dd1771edcc473037af80afd7e449e30d9
Link:
https://www.unpac.me/results/b11d3d7b-91c7-460f-8945-8c9a163ed8f8/
SH256 hash:
e37aa72bca3cecb9bdbe51cbd81ec1143bb17163088a1379a4ccb93f5d881e76
MD5 hash:
5cac4fe734fc8454ccb847e030beee38
SHA1 hash:
34298fe220e35f614b2c837cf1dc2604ab0882d6
Link:
https://www.unpac.me/results/b11d3d7b-91c7-460f-8945-8c9a163ed8f8/
SH256 hash:
4cfb6842146846fca052d82cc0f80e23c3a7b23bd5958aecfa6a21e28825a1f0
MD5 hash:
d48b80eadbbe9bfb68f3fbe11a6cf0e5
SHA1 hash:
c099a07b701c1f06709e181481a5938f9b6e001a
Link:
https://www.unpac.me/results/b11d3d7b-91c7-460f-8945-8c9a163ed8f8/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.80
Link:
https://yomi.yoroi.company/submissions/4cfb6842146846fca052d82cc0f80e23c3a7b23bd5958aecfa6a21e28825a1f0

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_EXE_Packed_Themida
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with Themida
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time

File information

The table below shows additional information about this malware sample such as delivery method and external references.

anyrun
any.run
https://app.any.run/tasks/ed26626c-0480-419f-901d-fddf5f099ce3/
Cape
Cape
https://www.capesandbox.com/analysis/127191/

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