52c6f26d5b3c4221b662d94ccabf1074de5673f4d114ea195b7bd1b697b8c806

Analysis

max time kernel
141s
max time network
125s
platform
windows7_x64
resource
win7-20231025-en
resource tags

arch:x64arch:x86image:win7-20231025-enlocale:en-usos:windows7-x64system
submitted
31/10/2023, 22:08

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General

Target

NEAS.5a6f2bef8250643387465d7b88a73d00_JC.exe
Size

58KB
MD5

5a6f2bef8250643387465d7b88a73d00
SHA1

36c16e4a6e1234c65a675a2c20a1542e1e759658
SHA256

52c6f26d5b3c4221b662d94ccabf1074de5673f4d114ea195b7bd1b697b8c806
SHA512

74d9bb86f5f46ece7ae9197fefd4ab2858e3b685d00984df8e4c4dcdb30c2c7211476a23ffdb9f7f07dc4eb00fad67043529a5ea7e5fc142da666bd5baaef9a2
SSDEEP

384:+5rDuuOFpEauMLfQDb2pproT/z4m5m1GJE6Al6z8yXDTLhrwnT:MDcpEBMLfQcubV5wGE96YyXDTLdoT

Score

8^/10

evasion

Malware Config

Signatures

Sets file to hidden 1 TTPs 1 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1564.001

pid	Process
2968	attrib.exe

Deletes itself 1 IoCs

pid	Process
2660	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2352	zskhost.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\Debug\zskhost.exe	NEAS.5a6f2bef8250643387465d7b88a73d00_JC.exe
File opened for modification	C:\Windows\Debug\zskhost.exe	NEAS.5a6f2bef8250643387465d7b88a73d00_JC.exe
File opened for modification	C:\Windows\Debug\zskhost.exe	attrib.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2164	NEAS.5a6f2bef8250643387465d7b88a73d00_JC.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2164 wrote to memory of 2968	2164	NEAS.5a6f2bef8250643387465d7b88a73d00_JC.exe	28
PID 2164 wrote to memory of 2968	2164	NEAS.5a6f2bef8250643387465d7b88a73d00_JC.exe	28
PID 2164 wrote to memory of 2968	2164	NEAS.5a6f2bef8250643387465d7b88a73d00_JC.exe	28
PID 2164 wrote to memory of 2968	2164	NEAS.5a6f2bef8250643387465d7b88a73d00_JC.exe	28
PID 2164 wrote to memory of 2660	2164	NEAS.5a6f2bef8250643387465d7b88a73d00_JC.exe	31
PID 2164 wrote to memory of 2660	2164	NEAS.5a6f2bef8250643387465d7b88a73d00_JC.exe	31
PID 2164 wrote to memory of 2660	2164	NEAS.5a6f2bef8250643387465d7b88a73d00_JC.exe	31
PID 2164 wrote to memory of 2660	2164	NEAS.5a6f2bef8250643387465d7b88a73d00_JC.exe	31

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2968	attrib.exe

C:\Users\Admin\AppData\Local\Temp\NEAS.5a6f2bef8250643387465d7b88a73d00_JC.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.5a6f2bef8250643387465d7b88a73d00_JC.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2164
- C:\Windows\SysWOW64\attrib.exe
  attrib +a +s +h +r C:\Windows\Debug\zskhost.exe
  2⤵
  - Sets file to hidden
  - Drops file in Windows directory
  - Views/modifies file attributes
  PID:2968
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\NEAS5A~1.EXE > nul
  2⤵
  - Deletes itself
  PID:2660

C:\Windows\Debug\zskhost.exe
C:\Windows\Debug\zskhost.exe
1⤵
- Executes dropped EXE
PID:2352

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\Debug\zskhost.exe

Filesize
58KB

MD5
a732b3f8576e022e4dd9e12c239c6c80

SHA1
070c147e90ab6885940521c5596e99d4b14ace6f

SHA256
423e8c9ce3d92052bcb2dc3e795dc38cf8e36915c5ce0bb134c39f94ea6d4102

SHA512
aff24c8b4dabae7a91c0677bb0b89d05f334aaa87c9c267833eb20eb25d3a0cbb3c81511b47d880fec4dab40e5464831e1e12ae6d5ce5eafe944c5e9597b31d1

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C:\Windows\debug\zskhost.exe

Filesize
58KB

MD5
a732b3f8576e022e4dd9e12c239c6c80

SHA1
070c147e90ab6885940521c5596e99d4b14ace6f

SHA256
423e8c9ce3d92052bcb2dc3e795dc38cf8e36915c5ce0bb134c39f94ea6d4102

SHA512
aff24c8b4dabae7a91c0677bb0b89d05f334aaa87c9c267833eb20eb25d3a0cbb3c81511b47d880fec4dab40e5464831e1e12ae6d5ce5eafe944c5e9597b31d1

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads