4cd8c9773f9161cb128febd48437da2e58356b12dbbf44c6d011939db79bba1a

General

Target

4cd8c9773f9161cb128febd48437da2e58356b12dbbf44c6d011939db79bba1a.exe
Size

830KB
MD5

2615d8aec8124bff1b10a3304ad80a9e
SHA1

4ebb5e56201f12b19e6b79070e5efa63a35f434e
SHA256

4cd8c9773f9161cb128febd48437da2e58356b12dbbf44c6d011939db79bba1a
SHA512

e0448b3ce524f6f67f5aef6caf7b701bae66ea476466741cbbd39d89246d65fc3490706028e866377311b4fbe5e244e55def431bd6bfb5a1fb25f8c41ae9394a
SSDEEP

12288:ZEmC92VnpahSR7BwkASR49lkQHMIWnDp2f47z4PUUhyVb4yDKUgM03qcmT1Pd2KS:ZEF96C6BwkP2lsl8fEQemdM03zmT1PA

Score

7^/10

upx

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2716	cmd.exe

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1368-0-0x0000000000990000-0x0000000000ACC000-memory.dmp	upx
behavioral1/memory/1368-29-0x0000000000990000-0x0000000000ACC000-memory.dmp	upx
behavioral1/memory/1368-30-0x0000000000990000-0x0000000000ACC000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\WindowsShell1120380.log	4cd8c9773f9161cb128febd48437da2e58356b12dbbf44c6d011939db79bba1a.exe
File opened for modification	C:\Windows\WindowSystemNewUpdate107.log	fsutil.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1368	4cd8c9773f9161cb128febd48437da2e58356b12dbbf44c6d011939db79bba1a.exe
Token: SeDebugPrivilege	2552	fsutil.exe
Token: SeIncBasePriorityPrivilege	1368	4cd8c9773f9161cb128febd48437da2e58356b12dbbf44c6d011939db79bba1a.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1368 wrote to memory of 2552	1368	4cd8c9773f9161cb128febd48437da2e58356b12dbbf44c6d011939db79bba1a.exe	28
PID 1368 wrote to memory of 2552	1368	4cd8c9773f9161cb128febd48437da2e58356b12dbbf44c6d011939db79bba1a.exe	28
PID 1368 wrote to memory of 2552	1368	4cd8c9773f9161cb128febd48437da2e58356b12dbbf44c6d011939db79bba1a.exe	28
PID 1368 wrote to memory of 2552	1368	4cd8c9773f9161cb128febd48437da2e58356b12dbbf44c6d011939db79bba1a.exe	28
PID 1368 wrote to memory of 2552	1368	4cd8c9773f9161cb128febd48437da2e58356b12dbbf44c6d011939db79bba1a.exe	28
PID 1368 wrote to memory of 2552	1368	4cd8c9773f9161cb128febd48437da2e58356b12dbbf44c6d011939db79bba1a.exe	28
PID 1368 wrote to memory of 2552	1368	4cd8c9773f9161cb128febd48437da2e58356b12dbbf44c6d011939db79bba1a.exe	28
PID 1368 wrote to memory of 2716	1368	4cd8c9773f9161cb128febd48437da2e58356b12dbbf44c6d011939db79bba1a.exe	30
PID 1368 wrote to memory of 2716	1368	4cd8c9773f9161cb128febd48437da2e58356b12dbbf44c6d011939db79bba1a.exe	30
PID 1368 wrote to memory of 2716	1368	4cd8c9773f9161cb128febd48437da2e58356b12dbbf44c6d011939db79bba1a.exe	30
PID 1368 wrote to memory of 2716	1368	4cd8c9773f9161cb128febd48437da2e58356b12dbbf44c6d011939db79bba1a.exe	30

C:\Users\Admin\AppData\Local\Temp\4cd8c9773f9161cb128febd48437da2e58356b12dbbf44c6d011939db79bba1a.exe
"C:\Users\Admin\AppData\Local\Temp\4cd8c9773f9161cb128febd48437da2e58356b12dbbf44c6d011939db79bba1a.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1368
- C:\Windows\SysWOW64\fsutil.exe
  "C:\Windows\SysWOW64\fsutil.exe"
  2⤵
  - Drops file in Windows directory
  - Suspicious use of AdjustPrivilegeToken
  PID:2552
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\4CD8C9~1.EXE > nul
  2⤵
  - Deletes itself
  PID:2716

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1368-0-0x0000000000990000-0x0000000000ACC000-memory.dmp

Filesize
1.2MB

Download
memory/1368-30-0x0000000000990000-0x0000000000ACC000-memory.dmp

Filesize
1.2MB

Download
memory/1368-29-0x0000000000990000-0x0000000000ACC000-memory.dmp

Filesize
1.2MB

Download
memory/2552-6-0x0000000000170000-0x000000000018B000-memory.dmp

Filesize
108KB

Download
memory/2552-23-0x0000000010000000-0x00000000100FD000-memory.dmp

Filesize
1012KB

Download
memory/2552-9-0x0000000000170000-0x000000000018B000-memory.dmp

Filesize
108KB

Download
memory/2552-10-0x0000000010000000-0x00000000100FD000-memory.dmp

Filesize
1012KB

Download
memory/2552-8-0x0000000000170000-0x000000000018B000-memory.dmp

Filesize
108KB

Download
memory/2552-4-0x00000000001D0000-0x00000000002DD000-memory.dmp

Filesize
1.1MB

Download
memory/2552-21-0x0000000010000000-0x00000000100FD000-memory.dmp

Filesize
1012KB

Download
memory/2552-5-0x00000000001D0000-0x00000000002DD000-memory.dmp

Filesize
1.1MB

Download
memory/2552-18-0x0000000010000000-0x00000000100FD000-memory.dmp

Filesize
1012KB

Download
memory/2552-24-0x0000000010000000-0x00000000100FD000-memory.dmp

Filesize
1012KB

Download
memory/2552-3-0x00000000001D0000-0x00000000002DD000-memory.dmp

Filesize
1.1MB

Download
memory/2552-2-0x00000000001D0000-0x00000000002DD000-memory.dmp

Filesize
1.1MB

Download
memory/2552-32-0x0000000010000000-0x00000000100FD000-memory.dmp

Filesize
1012KB

Download
memory/2552-40-0x0000000010000000-0x00000000100FD000-memory.dmp

Filesize
1012KB

Download

Analysis

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