fef2c8ca07c500e416fd7700a381c39899ee26ce1119f62e7c65cf922ce8b408

General

Target

wonder.exe
Size

299KB
MD5

41b883a061c95e9b9cb17d4ca50de770
SHA1

1daf96ec21d53d9a4699cea9b4db08cda6fbb5ad
SHA256

fef2c8ca07c500e416fd7700a381c39899ee26ce1119f62e7c65cf922ce8b408
SHA512

cdd1bb3a36182575cd715a52815765161eeaa3849e72c1c2a9a4e84cc43af9f8ec4997e642702bb3de41f162d2e8fd8717f6f8302bba5306821ee4d155626319
SSDEEP

6144:2neDcgRQv5VaNT9DW7a6dtM9VstSttuvqIT:2O0v5VuT9DW7hdt9tKt2qI

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 4 IoCs

Processes:

mstsca.exemstsca.exemstsca.exemstsca.exe

pid process

2056 mstsca.exe
2096 mstsca.exe
2844 mstsca.exe
2144 mstsca.exe

pid	process
2056	mstsca.exe
2096	mstsca.exe
2844	mstsca.exe
2144	mstsca.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

wonder.exemstsca.exemstsca.exe

description	pid	process	target process
PID 2248 set thread context of 2700	2248	wonder.exe	wonder.exe
PID 2056 set thread context of 2096	2056	mstsca.exe	mstsca.exe
PID 2844 set thread context of 2144	2844	mstsca.exe	mstsca.exe

System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

mstsca.exemstsca.exeschtasks.exemstsca.exewonder.exewonder.exeschtasks.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mstsca.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mstsca.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mstsca.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wonder.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wonder.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence execution

Scheduled Task
T1053.005

Processes:

schtasks.exeschtasks.exe

pid process

3020 schtasks.exe
1320 schtasks.exe

pid	process
3020	schtasks.exe
1320	schtasks.exe

Suspicious use of WriteProcessMemory 46 IoCs

Processes:

wonder.exewonder.exetaskeng.exemstsca.exemstsca.exemstsca.exe

description	pid	process	target process
PID 2248 wrote to memory of 2700	2248	wonder.exe	wonder.exe
PID 2248 wrote to memory of 2700	2248	wonder.exe	wonder.exe
PID 2248 wrote to memory of 2700	2248	wonder.exe	wonder.exe
PID 2248 wrote to memory of 2700	2248	wonder.exe	wonder.exe
PID 2248 wrote to memory of 2700	2248	wonder.exe	wonder.exe
PID 2248 wrote to memory of 2700	2248	wonder.exe	wonder.exe
PID 2248 wrote to memory of 2700	2248	wonder.exe	wonder.exe
PID 2248 wrote to memory of 2700	2248	wonder.exe	wonder.exe
PID 2248 wrote to memory of 2700	2248	wonder.exe	wonder.exe
PID 2248 wrote to memory of 2700	2248	wonder.exe	wonder.exe
PID 2700 wrote to memory of 3020	2700	wonder.exe	schtasks.exe
PID 2700 wrote to memory of 3020	2700	wonder.exe	schtasks.exe
PID 2700 wrote to memory of 3020	2700	wonder.exe	schtasks.exe
PID 2700 wrote to memory of 3020	2700	wonder.exe	schtasks.exe
PID 2636 wrote to memory of 2056	2636	taskeng.exe	mstsca.exe
PID 2636 wrote to memory of 2056	2636	taskeng.exe	mstsca.exe
PID 2636 wrote to memory of 2056	2636	taskeng.exe	mstsca.exe
PID 2636 wrote to memory of 2056	2636	taskeng.exe	mstsca.exe
PID 2056 wrote to memory of 2096	2056	mstsca.exe	mstsca.exe
PID 2056 wrote to memory of 2096	2056	mstsca.exe	mstsca.exe
PID 2056 wrote to memory of 2096	2056	mstsca.exe	mstsca.exe
PID 2056 wrote to memory of 2096	2056	mstsca.exe	mstsca.exe
PID 2056 wrote to memory of 2096	2056	mstsca.exe	mstsca.exe
PID 2056 wrote to memory of 2096	2056	mstsca.exe	mstsca.exe
PID 2056 wrote to memory of 2096	2056	mstsca.exe	mstsca.exe
PID 2056 wrote to memory of 2096	2056	mstsca.exe	mstsca.exe
PID 2056 wrote to memory of 2096	2056	mstsca.exe	mstsca.exe
PID 2056 wrote to memory of 2096	2056	mstsca.exe	mstsca.exe
PID 2096 wrote to memory of 1320	2096	mstsca.exe	schtasks.exe
PID 2096 wrote to memory of 1320	2096	mstsca.exe	schtasks.exe
PID 2096 wrote to memory of 1320	2096	mstsca.exe	schtasks.exe
PID 2096 wrote to memory of 1320	2096	mstsca.exe	schtasks.exe
PID 2636 wrote to memory of 2844	2636	taskeng.exe	mstsca.exe
PID 2636 wrote to memory of 2844	2636	taskeng.exe	mstsca.exe
PID 2636 wrote to memory of 2844	2636	taskeng.exe	mstsca.exe
PID 2636 wrote to memory of 2844	2636	taskeng.exe	mstsca.exe
PID 2844 wrote to memory of 2144	2844	mstsca.exe	mstsca.exe
PID 2844 wrote to memory of 2144	2844	mstsca.exe	mstsca.exe
PID 2844 wrote to memory of 2144	2844	mstsca.exe	mstsca.exe
PID 2844 wrote to memory of 2144	2844	mstsca.exe	mstsca.exe
PID 2844 wrote to memory of 2144	2844	mstsca.exe	mstsca.exe
PID 2844 wrote to memory of 2144	2844	mstsca.exe	mstsca.exe
PID 2844 wrote to memory of 2144	2844	mstsca.exe	mstsca.exe
PID 2844 wrote to memory of 2144	2844	mstsca.exe	mstsca.exe
PID 2844 wrote to memory of 2144	2844	mstsca.exe	mstsca.exe
PID 2844 wrote to memory of 2144	2844	mstsca.exe	mstsca.exe

C:\Users\Admin\AppData\Local\Temp\wonder.exe
"C:\Users\Admin\AppData\Local\Temp\wonder.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2248
- C:\Users\Admin\AppData\Local\Temp\wonder.exe
  "C:\Users\Admin\AppData\Local\Temp\wonder.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2700
- - C:\Windows\SysWOW64\schtasks.exe
    /C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3020

C:\Windows\system32\taskeng.exe
taskeng.exe {9D374182-2DB3-43B1-ACB0-04A8D9AF2179} S-1-5-21-457978338-2990298471-2379561640-1000:WOUOSVRD\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2636
- C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
  C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2056
- - C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2096
  - - C:\Windows\SysWOW64\schtasks.exe
      /C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:1320
- C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
  C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2844
- - C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    3⤵
    - Executes dropped EXE
    PID:2144

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe

Filesize
299KB

MD5
41b883a061c95e9b9cb17d4ca50de770

SHA1
1daf96ec21d53d9a4699cea9b4db08cda6fbb5ad

SHA256
fef2c8ca07c500e416fd7700a381c39899ee26ce1119f62e7c65cf922ce8b408

SHA512
cdd1bb3a36182575cd715a52815765161eeaa3849e72c1c2a9a4e84cc43af9f8ec4997e642702bb3de41f162d2e8fd8717f6f8302bba5306821ee4d155626319

Download Submit
memory/2056-20-0x0000000000400000-0x00000000007EC000-memory.dmp

Filesize
3.9MB

Download
memory/2248-1-0x00000000002B0000-0x00000000003B0000-memory.dmp

Filesize
1024KB

Download
memory/2248-2-0x00000000001B0000-0x00000000001B4000-memory.dmp

Filesize
16KB

Download
memory/2700-5-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2700-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2700-7-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2700-8-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads