41617a03876bd21bbc6c6ef9cecfd1e720fe2ecbf39f53cf3ff608d5ad451111

General

Target

41617a03876bd21bbc6c6ef9cecfd1e720fe2ecbf39f53cf3ff608d5ad451111.exe
Size

610KB
MD5

d85dc27f4b683ca4923b48a8b1d52d3b
SHA1

5b7b118c1b2b00f9ec50f2711b0fe4a20b49cd2f
SHA256

41617a03876bd21bbc6c6ef9cecfd1e720fe2ecbf39f53cf3ff608d5ad451111
SHA512

cfdabfc37e6b6a35e5e512a8d6c519c99b48bab1d34e8a5b39fc9f3898e32bc64798481bc733d9f481252f6b27925185218e18ab63be8f6cf0b456e69c3c639c
SSDEEP

12288:BATuTAnKGwUAW3ycQqgYo3CyWoKEY3ZQi7gfqOuuh+c:jT+KjUdQqboyyWoK1NGqzuhr

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
4300	3608	WerFault.exe	101
3128	3088	WerFault.exe	82

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	41617a03876bd21bbc6c6ef9cecfd1e720fe2ecbf39f53cf3ff608d5ad451111.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
3088	41617a03876bd21bbc6c6ef9cecfd1e720fe2ecbf39f53cf3ff608d5ad451111.exe
3088	41617a03876bd21bbc6c6ef9cecfd1e720fe2ecbf39f53cf3ff608d5ad451111.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3424	Explorer.EXE
Token: SeCreatePagefilePrivilege	3424	Explorer.EXE
Token: SeShutdownPrivilege	3424	Explorer.EXE
Token: SeCreatePagefilePrivilege	3424	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3608	winver.exe
3088	41617a03876bd21bbc6c6ef9cecfd1e720fe2ecbf39f53cf3ff608d5ad451111.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3088 wrote to memory of 3608	3088	41617a03876bd21bbc6c6ef9cecfd1e720fe2ecbf39f53cf3ff608d5ad451111.exe	101
PID 3088 wrote to memory of 3608	3088	41617a03876bd21bbc6c6ef9cecfd1e720fe2ecbf39f53cf3ff608d5ad451111.exe	101
PID 3088 wrote to memory of 3608	3088	41617a03876bd21bbc6c6ef9cecfd1e720fe2ecbf39f53cf3ff608d5ad451111.exe	101
PID 3088 wrote to memory of 3608	3088	41617a03876bd21bbc6c6ef9cecfd1e720fe2ecbf39f53cf3ff608d5ad451111.exe	101
PID 3608 wrote to memory of 3424	3608	winver.exe	56
PID 3088 wrote to memory of 3424	3088	41617a03876bd21bbc6c6ef9cecfd1e720fe2ecbf39f53cf3ff608d5ad451111.exe	56
PID 3088 wrote to memory of 2992	3088	41617a03876bd21bbc6c6ef9cecfd1e720fe2ecbf39f53cf3ff608d5ad451111.exe	49

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2992

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3424
- C:\Users\Admin\AppData\Local\Temp\41617a03876bd21bbc6c6ef9cecfd1e720fe2ecbf39f53cf3ff608d5ad451111.exe
  "C:\Users\Admin\AppData\Local\Temp\41617a03876bd21bbc6c6ef9cecfd1e720fe2ecbf39f53cf3ff608d5ad451111.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:3088
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:3608
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3608 -s 300
      4⤵
      Program crash
      PID:4300
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3088 -s 932
    3⤵
    - Program crash
    PID:3128

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:672

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3608 -ip 3608
1⤵
PID:3376

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3088 -ip 3088
1⤵
PID:2084

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/2992-14-0x0000000000540000-0x0000000000546000-memory.dmp

Filesize
24KB

Download
memory/2992-20-0x0000000000540000-0x0000000000546000-memory.dmp

Filesize
24KB

Download
memory/3088-1-0x00000000047C0000-0x0000000004E18000-memory.dmp

Filesize
6.3MB

Download
memory/3088-2-0x00000000045F0000-0x00000000045F1000-memory.dmp

Filesize
4KB

Download
memory/3088-3-0x00000000047C0000-0x0000000004E18000-memory.dmp

Filesize
6.3MB

Download
memory/3088-7-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3088-11-0x0000000005BD0000-0x00000000065D0000-memory.dmp

Filesize
10.0MB

Download
memory/3088-15-0x0000000005BD0000-0x00000000065D0000-memory.dmp

Filesize
10.0MB

Download
memory/3088-19-0x00000000047C0000-0x0000000004E18000-memory.dmp

Filesize
6.3MB

Download
memory/3424-5-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/3424-6-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/3424-12-0x0000000001F10000-0x0000000001F16000-memory.dmp

Filesize
24KB

Download

Analysis

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