474379bf82cdf09ed9e85eff1272c21c99143be48ebd698fca6f7dce3c7276f9

General

Target

474379bf82cdf09ed9e85eff1272c21c99143be48ebd698fca6f7dce3c7276f9.exe
Size

169KB
MD5

dcf9499899f83e60d57ac9aa5064db63
SHA1

7a9aba94c8c035438fb708abe8b06920871041f3
SHA256

474379bf82cdf09ed9e85eff1272c21c99143be48ebd698fca6f7dce3c7276f9
SHA512

f646b1710dea8dbbce6f355d6752b9c8ba36357589a2e5b3ee6332a151261f13f124e1aa4320461515d5748293c99857f5ec9cf2d8a33e31c285207b5e2fb8bd
SSDEEP

3072:R58LGtClDqkVBz4ZpSABKo+YfoXhRhd1TYo8aAz+jc1/J:HqDqkV5cYABt+Y6DJ/az+jU/

Score

8^/10

evasion persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

winrar.exe

pid process

676 winrar.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

1092 netsh.exe

pid	process
676	winrar.exe

pid	process
1092	netsh.exe

Drops startup file 2 IoCs

Processes:

winrar.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a00810e7676004207936d369e0551bd1.exe	winrar.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a00810e7676004207936d369e0551bd1.exe	winrar.exe

Loads dropped DLL 1 IoCs

Processes:

474379bf82cdf09ed9e85eff1272c21c99143be48ebd698fca6f7dce3c7276f9.exe

pid process

1792 474379bf82cdf09ed9e85eff1272c21c99143be48ebd698fca6f7dce3c7276f9.exe

pid	process
1792	474379bf82cdf09ed9e85eff1272c21c99143be48ebd698fca6f7dce3c7276f9.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

winrar.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\a00810e7676004207936d369e0551bd1 = "\"C:\\ProgramData\\winrar.exe\" .."	winrar.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\a00810e7676004207936d369e0551bd1 = "\"C:\\ProgramData\\winrar.exe\" .."	winrar.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 15 IoCs

Processes:

winrar.exe

description	pid	process
Token: SeDebugPrivilege	676	winrar.exe
Token: 33	676	winrar.exe
Token: SeIncBasePriorityPrivilege	676	winrar.exe
Token: 33	676	winrar.exe
Token: SeIncBasePriorityPrivilege	676	winrar.exe
Token: 33	676	winrar.exe
Token: SeIncBasePriorityPrivilege	676	winrar.exe
Token: 33	676	winrar.exe
Token: SeIncBasePriorityPrivilege	676	winrar.exe
Token: 33	676	winrar.exe
Token: SeIncBasePriorityPrivilege	676	winrar.exe
Token: 33	676	winrar.exe
Token: SeIncBasePriorityPrivilege	676	winrar.exe
Token: 33	676	winrar.exe
Token: SeIncBasePriorityPrivilege	676	winrar.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

474379bf82cdf09ed9e85eff1272c21c99143be48ebd698fca6f7dce3c7276f9.exewinrar.exe

description	pid	process	target process
PID 1792 wrote to memory of 676	1792	474379bf82cdf09ed9e85eff1272c21c99143be48ebd698fca6f7dce3c7276f9.exe	winrar.exe
PID 1792 wrote to memory of 676	1792	474379bf82cdf09ed9e85eff1272c21c99143be48ebd698fca6f7dce3c7276f9.exe	winrar.exe
PID 1792 wrote to memory of 676	1792	474379bf82cdf09ed9e85eff1272c21c99143be48ebd698fca6f7dce3c7276f9.exe	winrar.exe
PID 1792 wrote to memory of 676	1792	474379bf82cdf09ed9e85eff1272c21c99143be48ebd698fca6f7dce3c7276f9.exe	winrar.exe
PID 676 wrote to memory of 1092	676	winrar.exe	netsh.exe
PID 676 wrote to memory of 1092	676	winrar.exe	netsh.exe
PID 676 wrote to memory of 1092	676	winrar.exe	netsh.exe
PID 676 wrote to memory of 1092	676	winrar.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\474379bf82cdf09ed9e85eff1272c21c99143be48ebd698fca6f7dce3c7276f9.exe
"C:\Users\Admin\AppData\Local\Temp\474379bf82cdf09ed9e85eff1272c21c99143be48ebd698fca6f7dce3c7276f9.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1792
- C:\ProgramData\winrar.exe
  "C:\ProgramData\winrar.exe"
  2⤵
  - Executes dropped EXE
  - Drops startup file
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:676
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\ProgramData\winrar.exe" "winrar.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:1092

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\ProgramData\winrar.exe

Filesize
169KB

MD5
dcf9499899f83e60d57ac9aa5064db63

SHA1
7a9aba94c8c035438fb708abe8b06920871041f3

SHA256
474379bf82cdf09ed9e85eff1272c21c99143be48ebd698fca6f7dce3c7276f9

SHA512
f646b1710dea8dbbce6f355d6752b9c8ba36357589a2e5b3ee6332a151261f13f124e1aa4320461515d5748293c99857f5ec9cf2d8a33e31c285207b5e2fb8bd

Download Submit
C:\ProgramData\winrar.exe

Filesize
169KB

MD5
dcf9499899f83e60d57ac9aa5064db63

SHA1
7a9aba94c8c035438fb708abe8b06920871041f3

SHA256
474379bf82cdf09ed9e85eff1272c21c99143be48ebd698fca6f7dce3c7276f9

SHA512
f646b1710dea8dbbce6f355d6752b9c8ba36357589a2e5b3ee6332a151261f13f124e1aa4320461515d5748293c99857f5ec9cf2d8a33e31c285207b5e2fb8bd

Download Submit
\ProgramData\winrar.exe

Filesize
169KB

MD5
dcf9499899f83e60d57ac9aa5064db63

SHA1
7a9aba94c8c035438fb708abe8b06920871041f3

SHA256
474379bf82cdf09ed9e85eff1272c21c99143be48ebd698fca6f7dce3c7276f9

SHA512
f646b1710dea8dbbce6f355d6752b9c8ba36357589a2e5b3ee6332a151261f13f124e1aa4320461515d5748293c99857f5ec9cf2d8a33e31c285207b5e2fb8bd

Download Submit
memory/676-58-0x0000000000000000-mapping.dmp

Download
memory/676-63-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/676-64-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/1092-65-0x0000000000000000-mapping.dmp

Download
memory/1792-54-0x0000000076381000-0x0000000076383000-memory.dmp

Filesize
8KB

Download
memory/1792-55-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/1792-56-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/1792-62-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads