mountlocker | 00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99

General

Target

00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe
Size

66KB
MD5

2c26b319e378755596f0ac6d293798c8
SHA1

280a4cfcf5dd87898c3731b680efe061bdb7a9fe
SHA256

00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99
SHA512

0c2b53a3fed1dbbae64e7f1e7c17a89b5dc607ba40caecd5496e18ffd84cdad844e926742d9fc82a715d6e8b01a1c483d97d54f5be1f2d6997107946f2a3fe4b
SSDEEP

768:BS5zkUtPX/y4Jp5LmcmItHnlIH9q9Q/048RgauHADO2A:DaXq4xTlIdYrhRcH2A

Score

10^/10

mountlocker ransomware spyware stealer

Malware Config

Signatures

MountLocker Ransomware
Ransomware family first seen in late 2020, which threatens to leak files if ransom is not paid.
ransomware mountlocker
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Drops desktop.ini file(s) 25 IoCs

description	ioc	Process
File opened for modification	\??\c:\Users\Admin\3D Objects\desktop.ini	00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe
File opened for modification	\??\c:\Users\Admin\Favorites\desktop.ini	00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe
File opened for modification	\??\c:\Users\Admin\Links\desktop.ini	00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe
File opened for modification	\??\c:\Users\Admin\Music\desktop.ini	00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe
File opened for modification	\??\c:\Users\Admin\Contacts\desktop.ini	00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe
File opened for modification	\??\c:\Users\Admin\Desktop\desktop.ini	00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe
File opened for modification	\??\c:\Users\Admin\Pictures\Camera Roll\desktop.ini	00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe
File opened for modification	\??\c:\Users\Public\Libraries\desktop.ini	00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe
File opened for modification	\??\c:\Users\Public\AccountPictures\desktop.ini	00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe
File opened for modification	\??\c:\Users\Public\Downloads\desktop.ini	00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe
File opened for modification	\??\c:\Users\Admin\Downloads\desktop.ini	00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe
File opened for modification	\??\c:\Users\Public\Videos\desktop.ini	00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe
File opened for modification	\??\c:\Users\Admin\Pictures\desktop.ini	00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe
File opened for modification	\??\c:\Users\Public\Documents\desktop.ini	00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe
File opened for modification	\??\c:\Users\Admin\OneDrive\desktop.ini	00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe
File opened for modification	\??\c:\Users\Admin\Pictures\Saved Pictures\desktop.ini	00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe
File opened for modification	\??\c:\Users\Admin\Videos\desktop.ini	00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe
File opened for modification	\??\c:\Users\Admin\Documents\desktop.ini	00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe
File opened for modification	\??\c:\Users\Admin\Saved Games\desktop.ini	00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe
File opened for modification	\??\c:\Users\Public\Desktop\desktop.ini	00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe
File opened for modification	\??\c:\Users\Public\desktop.ini	00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe
File opened for modification	\??\c:\Users\Admin\Favorites\Links\desktop.ini	00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe
File opened for modification	\??\c:\Users\Admin\Searches\desktop.ini	00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe
File opened for modification	\??\c:\Users\Public\Music\desktop.ini	00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe
File opened for modification	\??\c:\Users\Public\Pictures\desktop.ini	00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe

Enumerates connected drives 3 TTPs 1 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\f:	00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	\??\c:\Program Files\RecoveryManual.html	00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe
File created	\??\c:\Program Files (x86)\RecoveryManual.html	00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000_Classes\.F30D4911\shell\Open	00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000_Classes\.F30D4911\shell\Open\command\ = "explorer.exe RecoveryManual.html"	00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe
Key created	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000_Classes\.F30D4911\shell\Open\command	00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe
Key created	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000_Classes\.F30D4911	00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe
Key created	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000_Classes\.F30D4911\shell	00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3532	00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe
3532	00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeRestorePrivilege	3532	00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe
Token: SeDebugPrivilege	3532	00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3532 wrote to memory of 4216	3532	00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe	92
PID 3532 wrote to memory of 4216	3532	00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe	92
PID 4216 wrote to memory of 1548	4216	cmd.exe	94
PID 4216 wrote to memory of 1548	4216	cmd.exe	94

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
1548	attrib.exe

C:\Users\Admin\AppData\Local\Temp\00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe
"C:\Users\Admin\AppData\Local\Temp\00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe"
1⤵
- Drops desktop.ini file(s)
- Enumerates connected drives
- Drops file in Program Files directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3532
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\\0E58174C.bat" "C:\Users\Admin\AppData\Local\Temp\00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4216
- - C:\Windows\system32\attrib.exe
    attrib -s -r -h "C:\Users\Admin\AppData\Local\Temp\00ed4c347cd62526226363a0aceb851b2ef7e3a4da78433a28f2cd6cbd5f1b99.exe"
    3⤵
    - Views/modifies file attributes
    PID:1548

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1036 --field-trial-handle=1928,i,13242902252791919845,10377620236057253993,262144 --variations-seed-version /prefetch:8
1⤵
PID:3668

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

1

T1564

Hidden Files and Directories

1

T1564.001

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Recovery\WindowsRE\RecoveryManual.html

Filesize
2KB

MD5
33815801cb3491bc695ffd2cd4e9369f

SHA1
005e2fcb39a3a38730173abc22f13ae409f5bacc

SHA256
84fe4627c831adca2ed91a71b8b29370aae99d6a514bcb002853454a8f013480

SHA512
08fea1de6f23d77f277cf84bcb20ad68e03f5e96a68d771b39d04902cb77941135b3fb1c604c827ef8d368a0045967ce29fd043b95894a8ccfdcd1e61d4cd11e

Download Submit
C:\Users\Admin\AppData\Local\Temp\0E58174C.bat

Filesize
65B

MD5
348cae913e496198548854f5ff2f6d1e

SHA1
a07655b9020205bd47084afd62a8bb22b48c0cdc

SHA256
c80128f51871eec3ae2057989a025ce244277c1c180498a5aaef45d5214b8506

SHA512
799796736d41d3fcb5a7c859571bb025ca2d062c4b86e078302be68c1a932ed4f78e003640df5405274364b5a9a9c0ba5e37177997683ee7ab54e5267590b611

Download Submit

Resubmissions

Analysis

Sharing