cbeb755f68b8eb15b548670e3a0d6e9b07dfb2f9d3beedecfbc48ba8c27ace6b

General

Target

cbeb755f68b8eb15b548670e3a0d6e9b07dfb2f9d3beedecfbc48ba8c27ace6b.exe
Size

128KB
MD5

6b0c41b128bc7fd2e37b49b35a35ac82
SHA1

831158561163394c5cfa10b07b494fc050f6419c
SHA256

cbeb755f68b8eb15b548670e3a0d6e9b07dfb2f9d3beedecfbc48ba8c27ace6b
SHA512

11231f6b6c792f25230b9b02aaa75dcd22c7c543b023ae4592ac23bc421d9c72290018eca4c2c8924692789b1d7abba93dfb28af0f8a89773f3306214e0f368a
SSDEEP

3072:WYbt6GNvYvwcz9gNvcMoY4sXDkOD6yM/w6:TNvYw9chY1YfyM/w6

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
4920	taskhost.exe
3436	taskhost.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	cbeb755f68b8eb15b548670e3a0d6e9b07dfb2f9d3beedecfbc48ba8c27ace6b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Taskhost = "C:\\Users\\Admin\\AppData\\Roaming\\taskhost.exe"	cbeb755f68b8eb15b548670e3a0d6e9b07dfb2f9d3beedecfbc48ba8c27ace6b.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4676 set thread context of 5060	4676	cbeb755f68b8eb15b548670e3a0d6e9b07dfb2f9d3beedecfbc48ba8c27ace6b.exe	81
PID 4920 set thread context of 3436	4920	taskhost.exe	85

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3600	4920	WerFault.exe	84
3100	4676	WerFault.exe	65

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 4676 wrote to memory of 5060	4676	cbeb755f68b8eb15b548670e3a0d6e9b07dfb2f9d3beedecfbc48ba8c27ace6b.exe	81
PID 4676 wrote to memory of 5060	4676	cbeb755f68b8eb15b548670e3a0d6e9b07dfb2f9d3beedecfbc48ba8c27ace6b.exe	81
PID 4676 wrote to memory of 5060	4676	cbeb755f68b8eb15b548670e3a0d6e9b07dfb2f9d3beedecfbc48ba8c27ace6b.exe	81
PID 4676 wrote to memory of 5060	4676	cbeb755f68b8eb15b548670e3a0d6e9b07dfb2f9d3beedecfbc48ba8c27ace6b.exe	81
PID 4676 wrote to memory of 5060	4676	cbeb755f68b8eb15b548670e3a0d6e9b07dfb2f9d3beedecfbc48ba8c27ace6b.exe	81
PID 5060 wrote to memory of 4920	5060	cbeb755f68b8eb15b548670e3a0d6e9b07dfb2f9d3beedecfbc48ba8c27ace6b.exe	84
PID 5060 wrote to memory of 4920	5060	cbeb755f68b8eb15b548670e3a0d6e9b07dfb2f9d3beedecfbc48ba8c27ace6b.exe	84
PID 5060 wrote to memory of 4920	5060	cbeb755f68b8eb15b548670e3a0d6e9b07dfb2f9d3beedecfbc48ba8c27ace6b.exe	84
PID 4920 wrote to memory of 3436	4920	taskhost.exe	85
PID 4920 wrote to memory of 3436	4920	taskhost.exe	85
PID 4920 wrote to memory of 3436	4920	taskhost.exe	85
PID 4920 wrote to memory of 3436	4920	taskhost.exe	85
PID 4920 wrote to memory of 3436	4920	taskhost.exe	85

C:\Users\Admin\AppData\Local\Temp\cbeb755f68b8eb15b548670e3a0d6e9b07dfb2f9d3beedecfbc48ba8c27ace6b.exe
"C:\Users\Admin\AppData\Local\Temp\cbeb755f68b8eb15b548670e3a0d6e9b07dfb2f9d3beedecfbc48ba8c27ace6b.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4676
- C:\Users\Admin\AppData\Local\Temp\cbeb755f68b8eb15b548670e3a0d6e9b07dfb2f9d3beedecfbc48ba8c27ace6b.exe
  C:\Users\Admin\AppData\Local\Temp\cbeb755f68b8eb15b548670e3a0d6e9b07dfb2f9d3beedecfbc48ba8c27ace6b.exe
  2⤵
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:5060
- - C:\Users\Admin\AppData\Roaming\taskhost.exe
    C:\Users\Admin\AppData\Roaming\taskhost.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:4920
  - - C:\Users\Admin\AppData\Roaming\taskhost.exe
      C:\Users\Admin\AppData\Roaming\taskhost.exe
      4⤵
      Executes dropped EXE
      PID:3436
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4920 -s 296
      4⤵
      Program crash
      PID:3600
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4676 -s 296
  2⤵
  - Program crash
  PID:3100

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4676 -ip 4676
1⤵
PID:5024

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4920 -ip 4920
1⤵
PID:5088

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\taskhost.exe

Filesize
128KB

MD5
715a410bcda998586ec5b466cd68dac4

SHA1
5c90a170341a96d74348060a35bc1cd45e7aac0b

SHA256
a761137a0665d0695fca02196ecf76c342740f7fa259cda45833bab6a3302ea0

SHA512
192c1639016a08338d3e63e914bc531414923ba6e31d2f18885b074f133f3155f13c48aee9b16c98e0e74be9a41d4530ad643ffe425d2595b8d2ec2f158e64ba

Download Submit
C:\Users\Admin\AppData\Roaming\taskhost.exe

Filesize
128KB

MD5
715a410bcda998586ec5b466cd68dac4

SHA1
5c90a170341a96d74348060a35bc1cd45e7aac0b

SHA256
a761137a0665d0695fca02196ecf76c342740f7fa259cda45833bab6a3302ea0

SHA512
192c1639016a08338d3e63e914bc531414923ba6e31d2f18885b074f133f3155f13c48aee9b16c98e0e74be9a41d4530ad643ffe425d2595b8d2ec2f158e64ba

Download Submit
C:\Users\Admin\AppData\Roaming\taskhost.exe

Filesize
128KB

MD5
715a410bcda998586ec5b466cd68dac4

SHA1
5c90a170341a96d74348060a35bc1cd45e7aac0b

SHA256
a761137a0665d0695fca02196ecf76c342740f7fa259cda45833bab6a3302ea0

SHA512
192c1639016a08338d3e63e914bc531414923ba6e31d2f18885b074f133f3155f13c48aee9b16c98e0e74be9a41d4530ad643ffe425d2595b8d2ec2f158e64ba

Download Submit
memory/3436-143-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/3436-142-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/3436-145-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/5060-135-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/5060-134-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/5060-133-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/5060-144-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download

Analysis

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