c1be4671b4f67c1902f14a732f0ea283f90db889116ee1de310823ce12b04dda

Analysis

max time kernel
141s
max time network
155s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
27/08/2023, 15:42

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General

Target

c1be4671b4f67c1902f14a732f0ea283f90db889116ee1de310823ce12b04dda.dll
Size

1.7MB
MD5

a8150e096396092c58f7bb78a7e1484f
SHA1

e30e8b92824a9e3f351e1fa1fb66fb27cb0a679d
SHA256

c1be4671b4f67c1902f14a732f0ea283f90db889116ee1de310823ce12b04dda
SHA512

a5dc461a0b4d8fc79d341ddcd2f8f68bce187fe67ff0303fd8605e83b7d7e2496094cf1d2175ee7e8effef84d159f11ac1ba28cef0dafdfacc632a8ef7c323fd
SSDEEP

49152:QXYLbix0dEDr+F46sPGiRPHKZ7WOLh7livfKYhiBWOh:QXYLWWCXfxPGihKZli5QWs

Score

8^/10

Malware Config

Signatures

Blocklisted process makes network request 3 IoCs

flow	pid	Process
2	2248	rundll32.exe
3	2248	rundll32.exe
4	2248	rundll32.exe

Executes dropped EXE 1 IoCs

pid	Process
1908	22.exe

Loads dropped DLL 1 IoCs

pid	Process
2248	rundll32.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\S:	rundll32.exe
File opened (read-only)	\??\T:	rundll32.exe
File opened (read-only)	\??\Y:	rundll32.exe
File opened (read-only)	\??\I:	rundll32.exe
File opened (read-only)	\??\L:	rundll32.exe
File opened (read-only)	\??\O:	rundll32.exe
File opened (read-only)	\??\R:	rundll32.exe
File opened (read-only)	\??\B:	rundll32.exe
File opened (read-only)	\??\U:	rundll32.exe
File opened (read-only)	\??\V:	rundll32.exe
File opened (read-only)	\??\X:	rundll32.exe
File opened (read-only)	\??\P:	rundll32.exe
File opened (read-only)	\??\Q:	rundll32.exe
File opened (read-only)	\??\K:	rundll32.exe
File opened (read-only)	\??\M:	rundll32.exe
File opened (read-only)	\??\N:	rundll32.exe
File opened (read-only)	\??\W:	rundll32.exe
File opened (read-only)	\??\E:	rundll32.exe
File opened (read-only)	\??\G:	rundll32.exe
File opened (read-only)	\??\H:	rundll32.exe
File opened (read-only)	\??\J:	rundll32.exe
File opened (read-only)	\??\Z:	rundll32.exe
File opened (read-only)	\??\D:	rundll32.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\gpedit.msc	mmc.exe
File opened for modification	C:\Windows\System32\GroupPolicy	mmc.exe
File opened for modification	C:\Windows\System32\GroupPolicy\gpt.ini	mmc.exe

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4219371764-2579186923-3390623117-1000\Software\Microsoft\Internet Explorer\Main	mmc.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2248	rundll32.exe
2248	rundll32.exe
2248	rundll32.exe
2248	rundll32.exe
2248	rundll32.exe
2248	rundll32.exe
2248	rundll32.exe
2248	rundll32.exe
2248	rundll32.exe
2248	rundll32.exe
2248	rundll32.exe
2248	rundll32.exe
2248	rundll32.exe
2248	rundll32.exe
2248	rundll32.exe
2248	rundll32.exe
2248	rundll32.exe
2248	rundll32.exe
2248	rundll32.exe
2248	rundll32.exe
2248	rundll32.exe
2248	rundll32.exe
2248	rundll32.exe
2248	rundll32.exe
2248	rundll32.exe
2248	rundll32.exe
2248	rundll32.exe
2248	rundll32.exe
2248	rundll32.exe
2248	rundll32.exe
2248	rundll32.exe
2248	rundll32.exe
2248	rundll32.exe
1908	22.exe
1908	22.exe
1908	22.exe
1908	22.exe
1908	22.exe
1908	22.exe
1908	22.exe
1908	22.exe
1908	22.exe
1908	22.exe
1908	22.exe
1908	22.exe
1908	22.exe
1908	22.exe
1908	22.exe
1908	22.exe
1908	22.exe
1908	22.exe
1908	22.exe
1908	22.exe
1908	22.exe
1908	22.exe
1908	22.exe
1908	22.exe
1908	22.exe
1908	22.exe
1908	22.exe
1908	22.exe
1908	22.exe
1908	22.exe
1908	22.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2424	mmc.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: 33	2424	mmc.exe
Token: SeIncBasePriorityPrivilege	2424	mmc.exe
Token: 33	2424	mmc.exe
Token: SeIncBasePriorityPrivilege	2424	mmc.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1908	22.exe
1908	22.exe
2424	mmc.exe
2424	mmc.exe
2424	mmc.exe
2424	mmc.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2584 wrote to memory of 2248	2584	rundll32.exe	28
PID 2584 wrote to memory of 2248	2584	rundll32.exe	28
PID 2584 wrote to memory of 2248	2584	rundll32.exe	28
PID 2584 wrote to memory of 2248	2584	rundll32.exe	28
PID 2584 wrote to memory of 2248	2584	rundll32.exe	28
PID 2584 wrote to memory of 2248	2584	rundll32.exe	28
PID 2584 wrote to memory of 2248	2584	rundll32.exe	28
PID 2248 wrote to memory of 1908	2248	rundll32.exe	31
PID 2248 wrote to memory of 1908	2248	rundll32.exe	31
PID 2248 wrote to memory of 1908	2248	rundll32.exe	31
PID 2248 wrote to memory of 1908	2248	rundll32.exe	31
PID 1908 wrote to memory of 2716	1908	22.exe	32
PID 1908 wrote to memory of 2716	1908	22.exe	32
PID 1908 wrote to memory of 2716	1908	22.exe	32
PID 1908 wrote to memory of 2716	1908	22.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\c1be4671b4f67c1902f14a732f0ea283f90db889116ee1de310823ce12b04dda.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2584
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\c1be4671b4f67c1902f14a732f0ea283f90db889116ee1de310823ce12b04dda.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Loads dropped DLL
  - Enumerates connected drives
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2248
- - C:\Users\Public\Music\22.exe
    C:\Users\Public\Music\22.exe
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1908
  - - C:\Windows\SysWOW64\cmd.exe
      cmd /c start C:\ProgramData\MonkeyKing
      4⤵
      PID:2716

C:\Windows\system32\mmc.exe
"C:\Windows\system32\mmc.exe" "C:\Windows\System32\gpedit.msc"
1⤵
- Drops file in System32 directory
- Modifies Internet Explorer settings
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2424

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Public\Music\22.exe

Filesize
108KB

MD5
48c30975186d1e0e8e3f9b29b7d98321

SHA1
dd0ad4e37b44c70204b64cb75adb0f937130105b

SHA256
5aa75d506a8a0b066b402f9548e21c1f2b90c34facc0c38c651e382aa312ae54

SHA512
559a77befe73b420a7f490b615f1ad1477a998b5a79f8e786dbc6cc691d8e09d7f6bd852f2f58feec5786367869339c787b28e1397fceb1f9fe83b378cfe107c

Download Submit
\Users\Public\Music\22.exe

Filesize
108KB

MD5
48c30975186d1e0e8e3f9b29b7d98321

SHA1
dd0ad4e37b44c70204b64cb75adb0f937130105b

SHA256
5aa75d506a8a0b066b402f9548e21c1f2b90c34facc0c38c651e382aa312ae54

SHA512
559a77befe73b420a7f490b615f1ad1477a998b5a79f8e786dbc6cc691d8e09d7f6bd852f2f58feec5786367869339c787b28e1397fceb1f9fe83b378cfe107c

Download Submit
memory/2248-5-0x0000000000260000-0x0000000000270000-memory.dmp

Filesize
64KB

Download
memory/2248-1-0x0000000010000000-0x00000000104C3000-memory.dmp

Filesize
4.8MB

Download
memory/2248-4-0x00000000002B0000-0x00000000002FA000-memory.dmp

Filesize
296KB

Download
memory/2248-7-0x0000000001E70000-0x0000000001F80000-memory.dmp

Filesize
1.1MB

Download
memory/2248-6-0x0000000010000000-0x00000000104C3000-memory.dmp

Filesize
4.8MB

Download
memory/2248-0-0x0000000010000000-0x00000000104C3000-memory.dmp

Filesize
4.8MB

Download
memory/2248-9-0x0000000010000000-0x00000000104C3000-memory.dmp

Filesize
4.8MB

Download
memory/2248-8-0x0000000000270000-0x000000000027C000-memory.dmp

Filesize
48KB

Download
memory/2248-11-0x0000000010000000-0x00000000104C3000-memory.dmp

Filesize
4.8MB

Download
memory/2248-13-0x0000000010000000-0x00000000104C3000-memory.dmp

Filesize
4.8MB

Download
memory/2248-14-0x0000000010000000-0x00000000104C3000-memory.dmp

Filesize
4.8MB

Download
memory/2248-15-0x0000000002070000-0x0000000002170000-memory.dmp

Filesize
1024KB

Download
memory/2248-16-0x0000000001FB0000-0x0000000002040000-memory.dmp

Filesize
576KB

Download
memory/2248-17-0x0000000001D40000-0x0000000001D97000-memory.dmp

Filesize
348KB

Download
memory/2248-3-0x0000000000210000-0x0000000000211000-memory.dmp

Filesize
4KB

Download
memory/2248-27-0x00000000002B0000-0x00000000002FA000-memory.dmp

Filesize
296KB

Download
memory/2248-18-0x0000000003700000-0x000000000387D000-memory.dmp

Filesize
1.5MB

Download
memory/2248-32-0x0000000010000000-0x00000000104C3000-memory.dmp

Filesize
4.8MB

Download
memory/2248-2-0x00000000002B0000-0x00000000002FA000-memory.dmp

Filesize
296KB

Download
memory/2248-26-0x0000000010000000-0x00000000104C3000-memory.dmp

Filesize
4.8MB

Download
memory/2248-125-0x0000000010000000-0x00000000104C3000-memory.dmp

Filesize
4.8MB

Download
memory/2248-117-0x0000000010000000-0x00000000104C3000-memory.dmp

Filesize
4.8MB

Download
memory/2248-110-0x0000000010000000-0x00000000104C3000-memory.dmp

Filesize
4.8MB

Download
memory/2424-96-0x0000000004CF0000-0x0000000004D70000-memory.dmp

Filesize
512KB

Download
memory/2424-111-0x0000000002460000-0x0000000002461000-memory.dmp

Filesize
4KB

Download
memory/2424-112-0x000007FEF2E90000-0x000007FEF382D000-memory.dmp

Filesize
9.6MB

Download
memory/2424-113-0x0000000004CF0000-0x0000000004D70000-memory.dmp

Filesize
512KB

Download
memory/2424-95-0x000007FEF2E90000-0x000007FEF382D000-memory.dmp

Filesize
9.6MB

Download
memory/2424-87-0x0000000002460000-0x0000000002461000-memory.dmp

Filesize
4KB

Download