117da274f4076bdd7f3aa6e6b1d96c44100ccaef59194202fc166ee5f4be78b2

Analysis

max time kernel
152s
max time network
65s
platform
windows7_x64
resource
win7-20220414-en
submitted
04-06-2022 03:37

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General

Target

117da274f4076bdd7f3aa6e6b1d96c44100ccaef59194202fc166ee5f4be78b2.exe
Size

654KB
MD5

0b40a2fff66d3c7f728b2d0e9ae861a6
SHA1

91f89d87f92ba4f96d16a96c35e56e039adf6979
SHA256

117da274f4076bdd7f3aa6e6b1d96c44100ccaef59194202fc166ee5f4be78b2
SHA512

dec02943bb4dfae04c0fcce7cb644aa60277f33cd4747270b4a2d3feb5ca53cf6a5d037eb618bc4c27e3ea266089a2fa8b0ae1fb68f9180fb9b4a15522834c5a

Score

9^/10

ransomware

Malware Config

Signatures

Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Modifies extensions of user files 4 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

117da274f4076bdd7f3aa6e6b1d96c44100ccaef59194202fc166ee5f4be78b2.exe

description	ioc	process
File opened for modification	\??\c:\Users\Admin\Pictures\DenyOpen.tiff	117da274f4076bdd7f3aa6e6b1d96c44100ccaef59194202fc166ee5f4be78b2.exe
File opened for modification	\??\c:\Users\Admin\Pictures\ResetSend.tiff	117da274f4076bdd7f3aa6e6b1d96c44100ccaef59194202fc166ee5f4be78b2.exe
File opened for modification	\??\c:\Users\Admin\Pictures\TestEnter.tiff	117da274f4076bdd7f3aa6e6b1d96c44100ccaef59194202fc166ee5f4be78b2.exe
File opened for modification	\??\c:\Users\Admin\Pictures\WatchPublish.tiff	117da274f4076bdd7f3aa6e6b1d96c44100ccaef59194202fc166ee5f4be78b2.exe

Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Processes:

vssadmin.exe

pid process

900 vssadmin.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 1696 vssvc.exe
Token: SeRestorePrivilege 1696 vssvc.exe
Token: SeAuditPrivilege 1696 vssvc.exe

pid	process
900	vssadmin.exe

description	pid	process
Token: SeBackupPrivilege	1696	vssvc.exe
Token: SeRestorePrivilege	1696	vssvc.exe
Token: SeAuditPrivilege	1696	vssvc.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

taskeng.exe

description	pid	process	target process
PID 288 wrote to memory of 900	288	taskeng.exe	vssadmin.exe
PID 288 wrote to memory of 900	288	taskeng.exe	vssadmin.exe
PID 288 wrote to memory of 900	288	taskeng.exe	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\117da274f4076bdd7f3aa6e6b1d96c44100ccaef59194202fc166ee5f4be78b2.exe
"C:\Users\Admin\AppData\Local\Temp\117da274f4076bdd7f3aa6e6b1d96c44100ccaef59194202fc166ee5f4be78b2.exe"
1⤵
- Modifies extensions of user files
PID:1788

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1696

C:\Windows\system32\taskeng.exe
taskeng.exe {6811CA29-F10F-440D-9831-44E3260DD8D6} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:288

C:\Windows\system32\vssadmin.exe
C:\Windows\system32\vssadmin.exe Delete Shadows /Quiet /All
2⤵
- Interacts with shadow copies
PID:900

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File Deletion

T1107

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Inhibit System Recovery

T1490

Replay Monitor

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Downloads

memory/900-57-0x0000000000000000-mapping.dmp

Download
memory/1788-54-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1788-55-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1788-56-0x0000000075AE1000-0x0000000075AE3000-memory.dmp

Filesize
8KB

Download