c806aa78dbfa7d1838c26fdebf4f00f5a658d33d241640a957a10e53fafe88ec

Analysis

max time kernel
154s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
03/10/2022, 00:42

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General

Target

c806aa78dbfa7d1838c26fdebf4f00f5a658d33d241640a957a10e53fafe88ec.exe
Size

77KB
MD5

700525b1592e042561559a9ea820f665
SHA1

3ff9ddbc4354d133a4a464f370d45cb7cd7cd9bf
SHA256

c806aa78dbfa7d1838c26fdebf4f00f5a658d33d241640a957a10e53fafe88ec
SHA512

fba602168014be8e51a8af643fa11b24ddc30c425235752c082be4bdea5dd67f5cb10f33c461f30847f5b289ffde187e97bb5538c9b5e5b48d416223db3e67fd
SSDEEP

1536:xw/6XoadQEUW/BvOagOKCoJz2H74YP9TzfallcM6Ru:xw/mdsWJvOuKCoJz2H3Hallr6

Score

8^/10

evasion persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1664	host.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
4752	netsh.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	c806aa78dbfa7d1838c26fdebf4f00f5a658d33d241640a957a10e53fafe88ec.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\45afe155eb6857a90a9ad23b5089cbfc.exe	host.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\45afe155eb6857a90a9ad23b5089cbfc.exe	host.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\45afe155eb6857a90a9ad23b5089cbfc = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\host.exe\" .."	host.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\45afe155eb6857a90a9ad23b5089cbfc = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\host.exe\" .."	host.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 25 IoCs

pid	Process
1664	host.exe
1664	host.exe
1664	host.exe
1664	host.exe
1664	host.exe
1664	host.exe
1664	host.exe
1664	host.exe
1664	host.exe
1664	host.exe
1664	host.exe
1664	host.exe
1664	host.exe
1664	host.exe
1664	host.exe
1664	host.exe
1664	host.exe
1664	host.exe
1664	host.exe
1664	host.exe
1664	host.exe
1664	host.exe
1664	host.exe
1664	host.exe
1664	host.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1664	host.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1224 wrote to memory of 1664	1224	c806aa78dbfa7d1838c26fdebf4f00f5a658d33d241640a957a10e53fafe88ec.exe	83
PID 1224 wrote to memory of 1664	1224	c806aa78dbfa7d1838c26fdebf4f00f5a658d33d241640a957a10e53fafe88ec.exe	83
PID 1224 wrote to memory of 1664	1224	c806aa78dbfa7d1838c26fdebf4f00f5a658d33d241640a957a10e53fafe88ec.exe	83
PID 1664 wrote to memory of 4752	1664	host.exe	84
PID 1664 wrote to memory of 4752	1664	host.exe	84
PID 1664 wrote to memory of 4752	1664	host.exe	84

C:\Users\Admin\AppData\Local\Temp\c806aa78dbfa7d1838c26fdebf4f00f5a658d33d241640a957a10e53fafe88ec.exe
"C:\Users\Admin\AppData\Local\Temp\c806aa78dbfa7d1838c26fdebf4f00f5a658d33d241640a957a10e53fafe88ec.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1224
- C:\Users\Admin\AppData\Local\Temp\host.exe
  "C:\Users\Admin\AppData\Local\Temp\host.exe"
  2⤵
  - Executes dropped EXE
  - Drops startup file
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1664
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\host.exe" "host.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:4752

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\host.exe

Filesize
77KB

MD5
700525b1592e042561559a9ea820f665

SHA1
3ff9ddbc4354d133a4a464f370d45cb7cd7cd9bf

SHA256
c806aa78dbfa7d1838c26fdebf4f00f5a658d33d241640a957a10e53fafe88ec

SHA512
fba602168014be8e51a8af643fa11b24ddc30c425235752c082be4bdea5dd67f5cb10f33c461f30847f5b289ffde187e97bb5538c9b5e5b48d416223db3e67fd

Download Submit
C:\Users\Admin\AppData\Local\Temp\host.exe

Filesize
77KB

MD5
700525b1592e042561559a9ea820f665

SHA1
3ff9ddbc4354d133a4a464f370d45cb7cd7cd9bf

SHA256
c806aa78dbfa7d1838c26fdebf4f00f5a658d33d241640a957a10e53fafe88ec

SHA512
fba602168014be8e51a8af643fa11b24ddc30c425235752c082be4bdea5dd67f5cb10f33c461f30847f5b289ffde187e97bb5538c9b5e5b48d416223db3e67fd

Download Submit
memory/1224-132-0x00000000746C0000-0x0000000074C71000-memory.dmp

Filesize
5.7MB

Download
memory/1224-137-0x00000000746C0000-0x0000000074C71000-memory.dmp

Filesize
5.7MB

Download
memory/1664-138-0x00000000746C0000-0x0000000074C71000-memory.dmp

Filesize
5.7MB

Download
memory/1664-139-0x00000000746C0000-0x0000000074C71000-memory.dmp

Filesize
5.7MB

Download