068b11dfd54c70eef5005a080a163e6151e625b77936e06c49ad64684434b3ae

Analysis

max time kernel
111s
max time network
101s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
24-08-2024 00:14

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General

Target

03d9907796b6a0520cd7816d9e5d5500N.exe
Size

63KB
MD5

03d9907796b6a0520cd7816d9e5d5500
SHA1

090466b25bc0bb93bb907948ab123c4cfaac188a
SHA256

068b11dfd54c70eef5005a080a163e6151e625b77936e06c49ad64684434b3ae
SHA512

3ac5849ff9b88f63a6e65c26218db692dbefd35b5f221d66f47ad394b84c7c2a376f6c408e2a1ad5d4c04c27a695ef6a90dd116d6ec83642969719d4b645f310
SSDEEP

1536:fvQoLHjw2iWPKMvw71oLyXQUUqnouy8YXVvvvZeee5Lttttn:fv5Ls27BIJoLyXTUyoutYXveeeRttttn

Score

7^/10

defense_evasion discovery 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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	03d9907796b6a0520cd7816d9e5d5500N.exe

Executes dropped EXE 1 IoCs

pid	Process
388	tuehost.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3604-0-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral2/files/0x000e0000000233fa-3.dat	upx
behavioral2/memory/3604-5-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral2/memory/388-6-0x0000000000400000-0x000000000040F000-memory.dmp	upx

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

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Debug\tuehost.exe	03d9907796b6a0520cd7816d9e5d5500N.exe
File opened for modification	C:\Windows\Debug\tuehost.exe	03d9907796b6a0520cd7816d9e5d5500N.exe

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	03d9907796b6a0520cd7816d9e5d5500N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tuehost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	tuehost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	tuehost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	3604	03d9907796b6a0520cd7816d9e5d5500N.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3604 wrote to memory of 1724	3604	03d9907796b6a0520cd7816d9e5d5500N.exe	89
PID 3604 wrote to memory of 1724	3604	03d9907796b6a0520cd7816d9e5d5500N.exe	89
PID 3604 wrote to memory of 1724	3604	03d9907796b6a0520cd7816d9e5d5500N.exe	89

C:\Users\Admin\AppData\Local\Temp\03d9907796b6a0520cd7816d9e5d5500N.exe
"C:\Users\Admin\AppData\Local\Temp\03d9907796b6a0520cd7816d9e5d5500N.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3604
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\03D990~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1724

C:\Windows\Debug\tuehost.exe
C:\Windows\Debug\tuehost.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Checks processor information in registry
PID:388

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Indicator Removal

T1070

File Deletion

T1070.004

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\debug\tuehost.exe

Filesize
63KB

MD5
50ec58553b97ae21d317803479dd0790

SHA1
1ac218cf56af078631eabce7b7e0f46f024a9afd

SHA256
383be64ef8a008cf628107c5a754fda9c88c0864ff6769e4c9bfa11ab7823824

SHA512
15763ab8f6c43f7f3eb2cdf1fcc8e89d1b837c14e2a8907fe6e517ed0f86d0845364ae1d396ca2a99a5cd5a6b5a82725c5d31db421a7e609d7357bd0095d9f9e

Download Submit
memory/388-6-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3604-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3604-5-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads