53c847547c4994568c24fd7381fc7225978bf1aeee758cc247366e4786411818

General

Target

injector.exe
Size

3.4MB
MD5

cfc3984a2b7c140e79cd2ae42afffe42
SHA1

1a8061504f534700802a6a17ab609b2fc988ab71
SHA256

53c847547c4994568c24fd7381fc7225978bf1aeee758cc247366e4786411818
SHA512

3a5b88caa7e922b559d22eae67a836480bb17af06ebcbae0eb55be4df6e6bb7d721b572d5e25210ee9d2f98155820ba6e62de8fe788d2a8e01e2a67256601589

Score

9^/10

evasion persistence themida trojan

Malware Config

Signatures

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Executes dropped EXE 1 IoCs

Processes:

1GJmK.exe

pid process

1868 1GJmK.exe
Sets service image path in registry 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112

pid	process
1868	1GJmK.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

injector.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	injector.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	injector.exe

Loads dropped DLL 1 IoCs

Processes:

injector.exe

pid process

1436 injector.exe

pid	process
1436	injector.exe

Themida packer 3 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/1436-54-0x000000013FAB0000-0x0000000140406000-memory.dmp	themida
behavioral1/memory/1436-55-0x000000013FAB0000-0x0000000140406000-memory.dmp	themida
behavioral1/memory/1436-56-0x000000013FAB0000-0x0000000140406000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

injector.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA injector.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

injector.exe

pid process

1436 injector.exe
Drops file in Windows directory 1 IoCs

Processes:

injector.exe

description ioc process

File created C:\Windows\SoftwareDistribution\Download\1GJmK.exe injector.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: LoadsDriver 1 IoCs

Processes:

1GJmK.exe

pid process

1868 1GJmK.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

1GJmK.exe

description pid process

Token: SeLoadDriverPrivilege 1868 1GJmK.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	injector.exe

pid	process
1436	injector.exe

description	ioc	process
File created	C:\Windows\SoftwareDistribution\Download\1GJmK.exe	injector.exe

pid	process
1868	1GJmK.exe

description	pid	process
Token: SeLoadDriverPrivilege	1868	1GJmK.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

injector.exe

description	pid	process	target process
PID 1436 wrote to memory of 1868	1436	injector.exe	1GJmK.exe
PID 1436 wrote to memory of 1868	1436	injector.exe	1GJmK.exe
PID 1436 wrote to memory of 1868	1436	injector.exe	1GJmK.exe
PID 1436 wrote to memory of 780	1436	injector.exe	cmd.exe
PID 1436 wrote to memory of 780	1436	injector.exe	cmd.exe
PID 1436 wrote to memory of 780	1436	injector.exe	cmd.exe
PID 1436 wrote to memory of 1256	1436	injector.exe	cmd.exe
PID 1436 wrote to memory of 1256	1436	injector.exe	cmd.exe
PID 1436 wrote to memory of 1256	1436	injector.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\injector.exe
"C:\Users\Admin\AppData\Local\Temp\injector.exe"
1⤵
- Checks BIOS information in registry
- Loads dropped DLL
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1436
- C:\Windows\SoftwareDistribution\Download\1GJmK.exe
  "C:\Windows\SoftwareDistribution\Download\1GJmK.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: LoadsDriver
  - Suspicious use of AdjustPrivilegeToken
  PID:1868
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c cd C:\Windows\System
  2⤵
  PID:780
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c start C:\Windows\System\thread.exe
  2⤵
  PID:1256

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SoftwareDistribution\Download\1GJmK.exe

MD5
34f829bcb896d021e08d8d20b83edcb7

SHA1
640a304ed81eb3b6a78e96ead6541255c0c68257

SHA256
9cbba5e6d7f0a29d387aec2656c4cb4f095f629c5ca3e05dd38658e87519f081

SHA512
2396b2332c25efeb7e088a41a9da1e4eebbad2797e029dca90a41596596847b6606a00973ef2f833c381cae224e332f9de8b35cefd018486f00fde3445545d0a

Download Submit
\Windows\SoftwareDistribution\Download\1GJmK.exe

MD5
34f829bcb896d021e08d8d20b83edcb7

SHA1
640a304ed81eb3b6a78e96ead6541255c0c68257

SHA256
9cbba5e6d7f0a29d387aec2656c4cb4f095f629c5ca3e05dd38658e87519f081

SHA512
2396b2332c25efeb7e088a41a9da1e4eebbad2797e029dca90a41596596847b6606a00973ef2f833c381cae224e332f9de8b35cefd018486f00fde3445545d0a

Download Submit
memory/780-61-0x0000000000000000-mapping.dmp

Download
memory/1256-62-0x0000000000000000-mapping.dmp

Download
memory/1436-54-0x000000013FAB0000-0x0000000140406000-memory.dmp

Filesize
9.3MB

Download
memory/1436-55-0x000000013FAB0000-0x0000000140406000-memory.dmp

Filesize
9.3MB

Download
memory/1436-56-0x000000013FAB0000-0x0000000140406000-memory.dmp

Filesize
9.3MB

Download
memory/1436-57-0x000007FEFC2D1000-0x000007FEFC2D3000-memory.dmp

Filesize
8KB

Download
memory/1868-59-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads