a3faec697d7c743db4473c1eaf5fdfd25ba344f38a8b1bee9d483d3b92dcc3df

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
08/01/2024, 15:52

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General

Target

a3faec697d7c743db4473c1eaf5fdfd25ba344f38a8b1bee9d483d3b92dcc3df.exe
Size

830KB
MD5

9eb416c2520af621e08c7e10705a811d
SHA1

20ff7ee4177f8704790eb2692f395336a32c9ebf
SHA256

a3faec697d7c743db4473c1eaf5fdfd25ba344f38a8b1bee9d483d3b92dcc3df
SHA512

a3e12f8dfe203b82130b117f488ed8962f2a6f4b6c7741af117b56ba7e298c2249688372ad3b26775ddcafdd18f524f0bc23bd8e326b8aed97b4b47de75cad78
SSDEEP

12288:ZEmC92VnpahSR7BwkASR49lkQHMIWnDp2f47z4PUUhyVb4yDKUgM03qcmT1Pd2KA:ZEF96C6BwkP2lsl8fEQemdM03zmT1P2

Score

7^/10

upx

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Control Panel\International\Geo\Nation	a3faec697d7c743db4473c1eaf5fdfd25ba344f38a8b1bee9d483d3b92dcc3df.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1672-0-0x0000000000070000-0x00000000001AC000-memory.dmp	upx
behavioral2/memory/1672-25-0x0000000000070000-0x00000000001AC000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\WindowsShell45372.log	a3faec697d7c743db4473c1eaf5fdfd25ba344f38a8b1bee9d483d3b92dcc3df.exe
File opened for modification	C:\Windows\WindowSystemNewUpdate431.log	TRACERT.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	1672	a3faec697d7c743db4473c1eaf5fdfd25ba344f38a8b1bee9d483d3b92dcc3df.exe
Token: SeDebugPrivilege	2328	TRACERT.EXE
Token: SeIncBasePriorityPrivilege	1672	a3faec697d7c743db4473c1eaf5fdfd25ba344f38a8b1bee9d483d3b92dcc3df.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1672 wrote to memory of 2328	1672	a3faec697d7c743db4473c1eaf5fdfd25ba344f38a8b1bee9d483d3b92dcc3df.exe	18
PID 1672 wrote to memory of 2328	1672	a3faec697d7c743db4473c1eaf5fdfd25ba344f38a8b1bee9d483d3b92dcc3df.exe	18
PID 1672 wrote to memory of 2328	1672	a3faec697d7c743db4473c1eaf5fdfd25ba344f38a8b1bee9d483d3b92dcc3df.exe	18
PID 1672 wrote to memory of 2328	1672	a3faec697d7c743db4473c1eaf5fdfd25ba344f38a8b1bee9d483d3b92dcc3df.exe	18
PID 1672 wrote to memory of 2328	1672	a3faec697d7c743db4473c1eaf5fdfd25ba344f38a8b1bee9d483d3b92dcc3df.exe	18
PID 1672 wrote to memory of 2328	1672	a3faec697d7c743db4473c1eaf5fdfd25ba344f38a8b1bee9d483d3b92dcc3df.exe	18
PID 1672 wrote to memory of 936	1672	a3faec697d7c743db4473c1eaf5fdfd25ba344f38a8b1bee9d483d3b92dcc3df.exe	95
PID 1672 wrote to memory of 936	1672	a3faec697d7c743db4473c1eaf5fdfd25ba344f38a8b1bee9d483d3b92dcc3df.exe	95
PID 1672 wrote to memory of 936	1672	a3faec697d7c743db4473c1eaf5fdfd25ba344f38a8b1bee9d483d3b92dcc3df.exe	95

C:\Users\Admin\AppData\Local\Temp\a3faec697d7c743db4473c1eaf5fdfd25ba344f38a8b1bee9d483d3b92dcc3df.exe
"C:\Users\Admin\AppData\Local\Temp\a3faec697d7c743db4473c1eaf5fdfd25ba344f38a8b1bee9d483d3b92dcc3df.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1672
- C:\Windows\SysWOW64\TRACERT.EXE
  "C:\Windows\SysWOW64\TRACERT.EXE"
  2⤵
  - Drops file in Windows directory
  - Suspicious use of AdjustPrivilegeToken
  PID:2328
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\A3FAEC~1.EXE > nul
  2⤵
  PID:936

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1672-0-0x0000000000070000-0x00000000001AC000-memory.dmp

Filesize
1.2MB

Download
memory/1672-25-0x0000000000070000-0x00000000001AC000-memory.dmp

Filesize
1.2MB

Download
memory/2328-20-0x0000000010000000-0x00000000100FD000-memory.dmp

Filesize
1012KB

Download
memory/2328-8-0x0000000010000000-0x00000000100FD000-memory.dmp

Filesize
1012KB

Download
memory/2328-16-0x0000000010000000-0x00000000100FD000-memory.dmp

Filesize
1012KB

Download
memory/2328-21-0x0000000010000000-0x00000000100FD000-memory.dmp

Filesize
1012KB

Download
memory/2328-2-0x0000000000E00000-0x0000000000F0D000-memory.dmp

Filesize
1.1MB

Download
memory/2328-19-0x0000000000BE0000-0x0000000000BFB000-memory.dmp

Filesize
108KB

Download
memory/2328-18-0x0000000010000000-0x00000000100FD000-memory.dmp

Filesize
1012KB

Download
memory/2328-6-0x0000000000BE0000-0x0000000000BFB000-memory.dmp

Filesize
108KB

Download
memory/2328-4-0x0000000000BE0000-0x0000000000BFB000-memory.dmp

Filesize
108KB

Download
memory/2328-28-0x0000000010000000-0x00000000100FD000-memory.dmp

Filesize
1012KB

Download
memory/2328-32-0x0000000010000000-0x00000000100FD000-memory.dmp

Filesize
1012KB

Download