3d1fd0006670b2d55b364b9e2d227e502c7474362b1a88eff1ce6118dc96d03f

General

Target

f9ec02b99f59f878178a7466f63110e0N.exe
Size

135KB
MD5

f9ec02b99f59f878178a7466f63110e0
SHA1

899ff5c063db7ea618b8474a5ffdc0554008ba50
SHA256

3d1fd0006670b2d55b364b9e2d227e502c7474362b1a88eff1ce6118dc96d03f
SHA512

15ee26091f86466361cf3aee2030b92c760f93289d03eb79147d1d5b91d7a5ac2f29d94b96d44dcec6b52882e2ceb5e5f49258323e44fd7655ea82adf61e9a2a
SSDEEP

1536:YGYU/W2/HG6QMauSV3ixJHABLrmhH7i9eNOOg00GqMIK7aGZh3SOI:YfU/WF6QMauSuiWNi9eNOl0007NZIOI

Score

7^/10

defense_evasion discovery persistence upx

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2252	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2760	wuauclt.exe

Loads dropped DLL 1 IoCs

pid	Process
2756	f9ec02b99f59f878178a7466f63110e0N.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x0008000000016d0e-1.dat	upx
behavioral1/memory/2760-7-0x0000000000D20000-0x0000000000D48000-memory.dmp	upx
behavioral1/memory/2756-4-0x00000000003C0000-0x00000000003E8000-memory.dmp	upx
behavioral1/memory/2760-9-0x0000000000D20000-0x0000000000D48000-memory.dmp	upx
behavioral1/memory/2756-10-0x00000000003C0000-0x00000000003E8000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Window Update = "\"C:\\ProgramData\\Update\\wuauclt.exe\" /run"	f9ec02b99f59f878178a7466f63110e0N.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 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	f9ec02b99f59f878178a7466f63110e0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wuauclt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2756 wrote to memory of 2760	2756	f9ec02b99f59f878178a7466f63110e0N.exe	30
PID 2756 wrote to memory of 2760	2756	f9ec02b99f59f878178a7466f63110e0N.exe	30
PID 2756 wrote to memory of 2760	2756	f9ec02b99f59f878178a7466f63110e0N.exe	30
PID 2756 wrote to memory of 2760	2756	f9ec02b99f59f878178a7466f63110e0N.exe	30
PID 2756 wrote to memory of 2252	2756	f9ec02b99f59f878178a7466f63110e0N.exe	32
PID 2756 wrote to memory of 2252	2756	f9ec02b99f59f878178a7466f63110e0N.exe	32
PID 2756 wrote to memory of 2252	2756	f9ec02b99f59f878178a7466f63110e0N.exe	32
PID 2756 wrote to memory of 2252	2756	f9ec02b99f59f878178a7466f63110e0N.exe	32

C:\Users\Admin\AppData\Local\Temp\f9ec02b99f59f878178a7466f63110e0N.exe
"C:\Users\Admin\AppData\Local\Temp\f9ec02b99f59f878178a7466f63110e0N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2756
- C:\ProgramData\Update\wuauclt.exe
  "C:\ProgramData\Update\wuauclt.exe" /run
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2760
- C:\windows\SysWOW64\cmd.exe
  "C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\f9ec02b99f59f878178a7466f63110e0N.exe" >> NUL
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2252

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Indicator Removal

1

T1070

File Deletion

Modify Registry

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

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Downloads

\ProgramData\Update\wuauclt.exe

Filesize
135KB

MD5
924ad91c041f1820d0950d261df4ff39

SHA1
2763e4a0112efdf569ec07311b2086cc40259d41

SHA256
2b1a9dcafffd2c61bdd1fdf7ac06195746cce7a8467d139f0b6cb69a3aa58dc6

SHA512
1d686e82d7fb4f1f7aa3c705019c640b180675db20a205ccec0a9a6adfb4d57fd1415cb9eafb70600d1e652da7ba42d53793f9f619a5b1a70b82eda83fdd98a1

Download Submit
memory/2756-5-0x00000000001D0000-0x00000000001F8000-memory.dmp

Filesize
160KB

Download
memory/2756-4-0x00000000003C0000-0x00000000003E8000-memory.dmp

Filesize
160KB

Download
memory/2756-8-0x00000000001D0000-0x00000000001F8000-memory.dmp

Filesize
160KB

Download
memory/2756-10-0x00000000003C0000-0x00000000003E8000-memory.dmp

Filesize
160KB

Download
memory/2760-7-0x0000000000D20000-0x0000000000D48000-memory.dmp

Filesize
160KB

Download
memory/2760-9-0x0000000000D20000-0x0000000000D48000-memory.dmp

Filesize
160KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads