a8a28c89788ed359c204acb234332621d78304def08c7d21fe3c7941c566d771

General

Target

a8a28c89788ed359c204acb234332621d78304def08c7d21fe3c7941c566d771N.exe
Size

610KB
MD5

e4eb49fad2147ff082a066faf4d8f080
SHA1

671b89a7db7f3a7edb9b685729895ead2e7ec2a3
SHA256

a8a28c89788ed359c204acb234332621d78304def08c7d21fe3c7941c566d771
SHA512

ffb925c5382b001bfb903f2af5ee274b2f6809a734865a9f3f4bb1797d3c9e67dd30eebfce18eca8fd4c5ca16ccfac31bd58c2dcfa2b1078ff0d79310e741116
SSDEEP

12288:tATuTAnKGwUAW3ycQqgYo3CyWoKEY3ZQi7gfqOuuh+c:XT+KjUdQqboyyWoK1NGqzuhb

Score

3^/10

discovery

Malware Config

Signatures

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

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1976	3688	WerFault.exe	104
540	2420	WerFault.exe	84

System Location Discovery: System Language Discovery 1 TTPs 2 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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a8a28c89788ed359c204acb234332621d78304def08c7d21fe3c7941c566d771N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Modifies data under HKEY_USERS 1 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@%SystemRoot%\system32\hnetcfgclient.dll,-201 = "HNetCfg Client"	svchost.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2420	a8a28c89788ed359c204acb234332621d78304def08c7d21fe3c7941c566d771N.exe
2420	a8a28c89788ed359c204acb234332621d78304def08c7d21fe3c7941c566d771N.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3388	Explorer.EXE
Token: SeCreatePagefilePrivilege	3388	Explorer.EXE
Token: SeShutdownPrivilege	3388	Explorer.EXE
Token: SeCreatePagefilePrivilege	3388	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3688	winver.exe
2420	a8a28c89788ed359c204acb234332621d78304def08c7d21fe3c7941c566d771N.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3388	Explorer.EXE

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2420 wrote to memory of 3688	2420	a8a28c89788ed359c204acb234332621d78304def08c7d21fe3c7941c566d771N.exe	104
PID 2420 wrote to memory of 3688	2420	a8a28c89788ed359c204acb234332621d78304def08c7d21fe3c7941c566d771N.exe	104
PID 2420 wrote to memory of 3688	2420	a8a28c89788ed359c204acb234332621d78304def08c7d21fe3c7941c566d771N.exe	104
PID 2420 wrote to memory of 3688	2420	a8a28c89788ed359c204acb234332621d78304def08c7d21fe3c7941c566d771N.exe	104
PID 3688 wrote to memory of 3388	3688	winver.exe	55
PID 2420 wrote to memory of 3388	2420	a8a28c89788ed359c204acb234332621d78304def08c7d21fe3c7941c566d771N.exe	55
PID 2420 wrote to memory of 680	2420	a8a28c89788ed359c204acb234332621d78304def08c7d21fe3c7941c566d771N.exe	51

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:680

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3388
- C:\Users\Admin\AppData\Local\Temp\a8a28c89788ed359c204acb234332621d78304def08c7d21fe3c7941c566d771N.exe
  "C:\Users\Admin\AppData\Local\Temp\a8a28c89788ed359c204acb234332621d78304def08c7d21fe3c7941c566d771N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:2420
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:3688
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3688 -s 300
      4⤵
      Program crash
      PID:1976
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2420 -s 928
    3⤵
    - Program crash
    PID:540

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:4368

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3688 -ip 3688
1⤵
PID:640

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 2420 -ip 2420
1⤵
PID:4824

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/680-13-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/680-19-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2420-1-0x0000000004630000-0x0000000004C88000-memory.dmp

Filesize
6.3MB

Download
memory/2420-2-0x0000000003D70000-0x0000000003D71000-memory.dmp

Filesize
4KB

Download
memory/2420-3-0x0000000003D70000-0x0000000003D71000-memory.dmp

Filesize
4KB

Download
memory/2420-7-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2420-11-0x0000000005740000-0x0000000006140000-memory.dmp

Filesize
10.0MB

Download
memory/2420-16-0x0000000005740000-0x0000000006140000-memory.dmp

Filesize
10.0MB

Download
memory/2420-18-0x0000000004630000-0x0000000004C88000-memory.dmp

Filesize
6.3MB

Download
memory/3388-5-0x0000000000800000-0x0000000000806000-memory.dmp

Filesize
24KB

Download
memory/3388-6-0x0000000000800000-0x0000000000806000-memory.dmp

Filesize
24KB

Download
memory/3388-10-0x0000000000810000-0x0000000000816000-memory.dmp

Filesize
24KB

Download

Analysis

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