9a119ec39dd275392df608195a7c702acacf38bcbb1d1d7b12aa84acb7a5d2a4

General

Target

9a119ec39dd275392df608195a7c702acacf38bcbb1d1d7b12aa84acb7a5d2a4.exe
Size

47KB
MD5

6c6e9c9f402296784565bedfb1416d44
SHA1

f6914cdbe16cc6563fa89793a979ba8aab3484bb
SHA256

9a119ec39dd275392df608195a7c702acacf38bcbb1d1d7b12aa84acb7a5d2a4
SHA512

3be3e5c8ae08fcc88876aa524f0f9ad838b9e7b377af70d0ede5da3c5ff9703254c839833afc7e9b8dd8a5b88d7b8ff6bdd5161285a7fe84b4be3464254a55c9
SSDEEP

768:hX0gWvCzuw6Uj9uGi45XOPxV5HNWnnnl000e999vddddIyyyOOtttb2222v:6vCzuw6UD9Az5HNWnnn622222v

Score

9^/10

evasion upx

Malware Config

Signatures

Detects Windows executables referencing non-Windows User-Agents 5 IoCs

resource	yara_rule
behavioral1/memory/2576-6-0x0000000000400000-0x0000000000416000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral1/memory/1668-7-0x0000000000400000-0x0000000000416000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral1/memory/1668-8-0x0000000000400000-0x0000000000416000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral1/memory/1668-12-0x0000000000400000-0x0000000000416000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral1/memory/1668-17-0x0000000000400000-0x0000000000416000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA

UPX dump on OEP (original entry point) 7 IoCs

resource	yara_rule
behavioral1/memory/2576-0-0x0000000000400000-0x0000000000416000-memory.dmp	UPX
behavioral1/files/0x000a000000012286-3.dat	UPX
behavioral1/memory/2576-6-0x0000000000400000-0x0000000000416000-memory.dmp	UPX
behavioral1/memory/1668-7-0x0000000000400000-0x0000000000416000-memory.dmp	UPX
behavioral1/memory/1668-8-0x0000000000400000-0x0000000000416000-memory.dmp	UPX
behavioral1/memory/1668-12-0x0000000000400000-0x0000000000416000-memory.dmp	UPX
behavioral1/memory/1668-17-0x0000000000400000-0x0000000000416000-memory.dmp	UPX

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
1952	attrib.exe

Deletes itself 1 IoCs

pid	Process
2676	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
1668	zskhost.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2576-0-0x0000000000400000-0x0000000000416000-memory.dmp	upx
behavioral1/files/0x000a000000012286-3.dat	upx
behavioral1/memory/2576-6-0x0000000000400000-0x0000000000416000-memory.dmp	upx
behavioral1/memory/1668-7-0x0000000000400000-0x0000000000416000-memory.dmp	upx
behavioral1/memory/1668-8-0x0000000000400000-0x0000000000416000-memory.dmp	upx
behavioral1/memory/1668-12-0x0000000000400000-0x0000000000416000-memory.dmp	upx
behavioral1/memory/1668-17-0x0000000000400000-0x0000000000416000-memory.dmp	upx

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\Debug\zskhost.exe	9a119ec39dd275392df608195a7c702acacf38bcbb1d1d7b12aa84acb7a5d2a4.exe
File opened for modification	C:\Windows\Debug\zskhost.exe	9a119ec39dd275392df608195a7c702acacf38bcbb1d1d7b12aa84acb7a5d2a4.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	2576	9a119ec39dd275392df608195a7c702acacf38bcbb1d1d7b12aa84acb7a5d2a4.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2576 wrote to memory of 1952	2576	9a119ec39dd275392df608195a7c702acacf38bcbb1d1d7b12aa84acb7a5d2a4.exe	28
PID 2576 wrote to memory of 1952	2576	9a119ec39dd275392df608195a7c702acacf38bcbb1d1d7b12aa84acb7a5d2a4.exe	28
PID 2576 wrote to memory of 1952	2576	9a119ec39dd275392df608195a7c702acacf38bcbb1d1d7b12aa84acb7a5d2a4.exe	28
PID 2576 wrote to memory of 1952	2576	9a119ec39dd275392df608195a7c702acacf38bcbb1d1d7b12aa84acb7a5d2a4.exe	28
PID 2576 wrote to memory of 2676	2576	9a119ec39dd275392df608195a7c702acacf38bcbb1d1d7b12aa84acb7a5d2a4.exe	31
PID 2576 wrote to memory of 2676	2576	9a119ec39dd275392df608195a7c702acacf38bcbb1d1d7b12aa84acb7a5d2a4.exe	31
PID 2576 wrote to memory of 2676	2576	9a119ec39dd275392df608195a7c702acacf38bcbb1d1d7b12aa84acb7a5d2a4.exe	31
PID 2576 wrote to memory of 2676	2576	9a119ec39dd275392df608195a7c702acacf38bcbb1d1d7b12aa84acb7a5d2a4.exe	31

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
1952	attrib.exe

C:\Users\Admin\AppData\Local\Temp\9a119ec39dd275392df608195a7c702acacf38bcbb1d1d7b12aa84acb7a5d2a4.exe
"C:\Users\Admin\AppData\Local\Temp\9a119ec39dd275392df608195a7c702acacf38bcbb1d1d7b12aa84acb7a5d2a4.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2576
- 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:1952
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\9A119E~1.EXE > nul
  2⤵
  - Deletes itself
  PID:2676

C:\Windows\Debug\zskhost.exe
C:\Windows\Debug\zskhost.exe
1⤵
- Executes dropped EXE
PID:1668

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

2

T1564

Hidden Files and Directories

2

T1564.001

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\Debug\zskhost.exe

Filesize
47KB

MD5
f4a27ab0eabbefde68d7444c7ebbd01b

SHA1
2cb037e330d06de6865f53996883ce41566b0ffe

SHA256
2689741805ac22230fa137a6c6179f3b868e92ebb4699d3d1f67e367c5d09a59

SHA512
d57983d4f89438d26d39ab47cc9472fa341b277f0f306efe12cd7a40c434b54222cb1df282f5241499d6d8614483289351f57adf652f46abcb6df2d4f4ebfb26

Download Submit
memory/1668-7-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/1668-8-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/1668-12-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/1668-17-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2576-0-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2576-6-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads