988c9d3092715390275958db6a2531f30b1fab02440f86163ec8ab040b67abb1

Analysis

max time kernel
142s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20231020-en
resource tags

arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
submitted
21/11/2023, 00:01

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General

Target

988c9d3092715390275958db6a2531f30b1fab02440f86163ec8ab040b67abb1.exe
Size

972KB
MD5

35bbe59d2dce520b296d78e2f8669509
SHA1

fa796726d4b2e35b24cd0e9e2dfb2ab04cc10e91
SHA256

988c9d3092715390275958db6a2531f30b1fab02440f86163ec8ab040b67abb1
SHA512

0fd3f6550a25c112ce8e7b79836b94883ce41e72cbe731ef4323f40dd9f8ab171150f3dcdaf680e9c385d9f59a2c5a10808c94d2728f9fb28e4553e19c3d6f31
SSDEEP

24576:ZEF96C6BwkP2lsl8fEQemdM03zmT1P+cw0us+U+VCswUcswv4wl0rc3Ucswv4wEO:is5SkP2lS1mdM03aT1P+cw0us+U+VCsY

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-1-5-21-3350690463-3549324357-1323838019-1000\Control Panel\International\Geo\Nation	988c9d3092715390275958db6a2531f30b1fab02440f86163ec8ab040b67abb1.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3828-0-0x0000000000C50000-0x0000000000D8C000-memory.dmp	upx
behavioral2/memory/3828-34-0x0000000000C50000-0x0000000000D8C000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\WindowsShell232338.log	988c9d3092715390275958db6a2531f30b1fab02440f86163ec8ab040b67abb1.exe
File opened for modification	C:\Windows\WindowSystemNewUpdate33.log	calc.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	3828	988c9d3092715390275958db6a2531f30b1fab02440f86163ec8ab040b67abb1.exe
Token: SeDebugPrivilege	5084	calc.exe
Token: SeIncBasePriorityPrivilege	3828	988c9d3092715390275958db6a2531f30b1fab02440f86163ec8ab040b67abb1.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3828 wrote to memory of 5084	3828	988c9d3092715390275958db6a2531f30b1fab02440f86163ec8ab040b67abb1.exe	85
PID 3828 wrote to memory of 5084	3828	988c9d3092715390275958db6a2531f30b1fab02440f86163ec8ab040b67abb1.exe	85
PID 3828 wrote to memory of 5084	3828	988c9d3092715390275958db6a2531f30b1fab02440f86163ec8ab040b67abb1.exe	85
PID 3828 wrote to memory of 5084	3828	988c9d3092715390275958db6a2531f30b1fab02440f86163ec8ab040b67abb1.exe	85
PID 3828 wrote to memory of 5084	3828	988c9d3092715390275958db6a2531f30b1fab02440f86163ec8ab040b67abb1.exe	85
PID 3828 wrote to memory of 5084	3828	988c9d3092715390275958db6a2531f30b1fab02440f86163ec8ab040b67abb1.exe	85
PID 3828 wrote to memory of 4280	3828	988c9d3092715390275958db6a2531f30b1fab02440f86163ec8ab040b67abb1.exe	91
PID 3828 wrote to memory of 4280	3828	988c9d3092715390275958db6a2531f30b1fab02440f86163ec8ab040b67abb1.exe	91
PID 3828 wrote to memory of 4280	3828	988c9d3092715390275958db6a2531f30b1fab02440f86163ec8ab040b67abb1.exe	91

C:\Users\Admin\AppData\Local\Temp\988c9d3092715390275958db6a2531f30b1fab02440f86163ec8ab040b67abb1.exe
"C:\Users\Admin\AppData\Local\Temp\988c9d3092715390275958db6a2531f30b1fab02440f86163ec8ab040b67abb1.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3828
- C:\Windows\SysWOW64\calc.exe
  "C:\Windows\SysWOW64\calc.exe"
  2⤵
  - Drops file in Windows directory
  - Suspicious use of AdjustPrivilegeToken
  PID:5084
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\988C9D~1.EXE > nul
  2⤵
  PID:4280

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/3828-0-0x0000000000C50000-0x0000000000D8C000-memory.dmp

Filesize
1.2MB

Download
memory/3828-34-0x0000000000C50000-0x0000000000D8C000-memory.dmp

Filesize
1.2MB

Download
memory/5084-21-0x0000000010000000-0x00000000100FD000-memory.dmp

Filesize
1012KB

Download
memory/5084-23-0x0000000010000000-0x00000000100FD000-memory.dmp

Filesize
1012KB

Download
memory/5084-7-0x0000000002420000-0x000000000243B000-memory.dmp

Filesize
108KB

Download
memory/5084-8-0x0000000010000000-0x00000000100FD000-memory.dmp

Filesize
1012KB

Download
memory/5084-16-0x0000000010000000-0x00000000100FD000-memory.dmp

Filesize
1012KB

Download
memory/5084-19-0x0000000010000000-0x00000000100FD000-memory.dmp

Filesize
1012KB

Download
memory/5084-4-0x0000000002420000-0x000000000243B000-memory.dmp

Filesize
108KB

Download
memory/5084-6-0x0000000002420000-0x000000000243B000-memory.dmp

Filesize
108KB

Download
memory/5084-25-0x0000000010000000-0x00000000100FD000-memory.dmp

Filesize
1012KB

Download
memory/5084-28-0x0000000010000000-0x00000000100FD000-memory.dmp

Filesize
1012KB

Download
memory/5084-29-0x0000000010000000-0x00000000100FD000-memory.dmp

Filesize
1012KB

Download
memory/5084-30-0x0000000010000000-0x00000000100FD000-memory.dmp

Filesize
1012KB

Download
memory/5084-31-0x0000000010000000-0x00000000100FD000-memory.dmp

Filesize
1012KB

Download
memory/5084-2-0x0000000000800000-0x000000000090D000-memory.dmp

Filesize
1.1MB

Download
memory/5084-35-0x0000000010000000-0x00000000100FD000-memory.dmp

Filesize
1012KB

Download
memory/5084-37-0x0000000010000000-0x00000000100FD000-memory.dmp

Filesize
1012KB

Download