b0352074c6f0556acf2215aa41e485085b1c7561f645f1d314a570acd31ccc1b

Analysis

max time kernel
151s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
26-11-2022 11:47

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General

Target

2014-12-22 #32/64fbde6dd4ddff6293c9e71c9fb23cee.exe
Size

218KB
MD5

64fbde6dd4ddff6293c9e71c9fb23cee
SHA1

3bd80fa12fd339eb536d861ec76790aad04b2e71
SHA256

85f0679a2d00bb7faff75e65e874502afe421337ce2269af51b36a7620e01af6
SHA512

875645a31a1b821945f51396ae407019d5eb1a6f0dfe023dc958f1b299167e385c8964d64e8b52cfb6c130381cdaf3bbaaea9e1d53acbf83636d212224c5c69d
SSDEEP

3072:/+cBr/UnL7HgAp6PbjdZ3Pf+ZO4bGD1oVupD0ADvg:WWYLbPp6ndZXJ4bfupDLDv

Score

8^/10

evasion persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

system.exe

pid process

1464 system.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

4200 netsh.exe

pid	process
4200	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

Processes:

64fbde6dd4ddff6293c9e71c9fb23cee.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	64fbde6dd4ddff6293c9e71c9fb23cee.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

system.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\12ce4e06a81e8d54fd01d9b762f1b1bb = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\system.exe\" .."	system.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\12ce4e06a81e8d54fd01d9b762f1b1bb = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\system.exe\" .."	system.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 33 IoCs

Processes:

system.exe

pid	process
1464	system.exe
1464	system.exe
1464	system.exe
1464	system.exe
1464	system.exe
1464	system.exe
1464	system.exe
1464	system.exe
1464	system.exe
1464	system.exe
1464	system.exe
1464	system.exe
1464	system.exe
1464	system.exe
1464	system.exe
1464	system.exe
1464	system.exe
1464	system.exe
1464	system.exe
1464	system.exe
1464	system.exe
1464	system.exe
1464	system.exe
1464	system.exe
1464	system.exe
1464	system.exe
1464	system.exe
1464	system.exe
1464	system.exe
1464	system.exe
1464	system.exe
1464	system.exe
1464	system.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

system.exe

description pid process

Token: SeDebugPrivilege 1464 system.exe

description	pid	process
Token: SeDebugPrivilege	1464	system.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

64fbde6dd4ddff6293c9e71c9fb23cee.exesystem.exe

description	pid	process	target process
PID 4940 wrote to memory of 1464	4940	64fbde6dd4ddff6293c9e71c9fb23cee.exe	system.exe
PID 4940 wrote to memory of 1464	4940	64fbde6dd4ddff6293c9e71c9fb23cee.exe	system.exe
PID 4940 wrote to memory of 1464	4940	64fbde6dd4ddff6293c9e71c9fb23cee.exe	system.exe
PID 1464 wrote to memory of 4200	1464	system.exe	netsh.exe
PID 1464 wrote to memory of 4200	1464	system.exe	netsh.exe
PID 1464 wrote to memory of 4200	1464	system.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\2014-12-22 #32\64fbde6dd4ddff6293c9e71c9fb23cee.exe
"C:\Users\Admin\AppData\Local\Temp\2014-12-22 #32\64fbde6dd4ddff6293c9e71c9fb23cee.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4940
- C:\Users\Admin\AppData\Local\Temp\system.exe
  "C:\Users\Admin\AppData\Local\Temp\system.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1464
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\system.exe" "system.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:4200

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

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Downloads

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

Filesize
218KB

MD5
64fbde6dd4ddff6293c9e71c9fb23cee

SHA1
3bd80fa12fd339eb536d861ec76790aad04b2e71

SHA256
85f0679a2d00bb7faff75e65e874502afe421337ce2269af51b36a7620e01af6

SHA512
875645a31a1b821945f51396ae407019d5eb1a6f0dfe023dc958f1b299167e385c8964d64e8b52cfb6c130381cdaf3bbaaea9e1d53acbf83636d212224c5c69d

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

Filesize
218KB

MD5
64fbde6dd4ddff6293c9e71c9fb23cee

SHA1
3bd80fa12fd339eb536d861ec76790aad04b2e71

SHA256
85f0679a2d00bb7faff75e65e874502afe421337ce2269af51b36a7620e01af6

SHA512
875645a31a1b821945f51396ae407019d5eb1a6f0dfe023dc958f1b299167e385c8964d64e8b52cfb6c130381cdaf3bbaaea9e1d53acbf83636d212224c5c69d

Download Submit
memory/1464-134-0x0000000000000000-mapping.dmp

Download
memory/1464-138-0x0000000075480000-0x0000000075A31000-memory.dmp

Filesize
5.7MB

Download
memory/1464-139-0x0000000075480000-0x0000000075A31000-memory.dmp

Filesize
5.7MB

Download
memory/4200-140-0x0000000000000000-mapping.dmp

Download
memory/4940-132-0x0000000075480000-0x0000000075A31000-memory.dmp

Filesize
5.7MB

Download
memory/4940-133-0x0000000075480000-0x0000000075A31000-memory.dmp

Filesize
5.7MB

Download
memory/4940-137-0x0000000075480000-0x0000000075A31000-memory.dmp

Filesize
5.7MB

Download