99c58ce51ba20697bca03a5330262afc21071866b1ea5b1a048f7a9e0f243732

Analysis

max time kernel
36s
max time network
69s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
25/11/2022, 10:12

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General

Target

99c58ce51ba20697bca03a5330262afc21071866b1ea5b1a048f7a9e0f243732.exe
Size

935KB
MD5

58ed34b69ecd3e179b2c04dec5ac9ad3
SHA1

55fddc3573ab7ac031aa6c8a3b67f710edb2f417
SHA256

99c58ce51ba20697bca03a5330262afc21071866b1ea5b1a048f7a9e0f243732
SHA512

40f8c864fff30acbb17b184fa069a823619fed42f97f85217d61b0ba907ff3a504a058a1eaefdc67859515ed0b368e7131812b7a40dc8f7a5dbc50b63a9b4d22
SSDEEP

12288:Z5Yr15f753d5QWIDz/Wz9NCyzHinLipNDJ5eoFb0OZ/WiGaks+HL63S27x43:ZyHv5Z+Wzv7AiBll0OBWi6si9G2

Score

8^/10

upx

Malware Config

Signatures

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/932-55-0x0000000000400000-0x00000000004F2000-memory.dmp	upx
behavioral1/memory/932-57-0x0000000000400000-0x00000000004F2000-memory.dmp	upx
behavioral1/memory/932-58-0x0000000000400000-0x00000000004F2000-memory.dmp	upx
behavioral1/memory/932-62-0x0000000000400000-0x00000000004F2000-memory.dmp	upx
behavioral1/memory/932-63-0x0000000000400000-0x00000000004F2000-memory.dmp	upx
behavioral1/memory/932-64-0x0000000000400000-0x00000000004F2000-memory.dmp	upx

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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	99c58ce51ba20697bca03a5330262afc21071866b1ea5b1a048f7a9e0f243732.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	99c58ce51ba20697bca03a5330262afc21071866b1ea5b1a048f7a9e0f243732.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	99c58ce51ba20697bca03a5330262afc21071866b1ea5b1a048f7a9e0f243732.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	99c58ce51ba20697bca03a5330262afc21071866b1ea5b1a048f7a9e0f243732.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1088 set thread context of 932	1088	99c58ce51ba20697bca03a5330262afc21071866b1ea5b1a048f7a9e0f243732.exe	28

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
932	99c58ce51ba20697bca03a5330262afc21071866b1ea5b1a048f7a9e0f243732.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1088 wrote to memory of 932	1088	99c58ce51ba20697bca03a5330262afc21071866b1ea5b1a048f7a9e0f243732.exe	28
PID 1088 wrote to memory of 932	1088	99c58ce51ba20697bca03a5330262afc21071866b1ea5b1a048f7a9e0f243732.exe	28
PID 1088 wrote to memory of 932	1088	99c58ce51ba20697bca03a5330262afc21071866b1ea5b1a048f7a9e0f243732.exe	28
PID 1088 wrote to memory of 932	1088	99c58ce51ba20697bca03a5330262afc21071866b1ea5b1a048f7a9e0f243732.exe	28
PID 1088 wrote to memory of 932	1088	99c58ce51ba20697bca03a5330262afc21071866b1ea5b1a048f7a9e0f243732.exe	28
PID 1088 wrote to memory of 932	1088	99c58ce51ba20697bca03a5330262afc21071866b1ea5b1a048f7a9e0f243732.exe	28
PID 1088 wrote to memory of 932	1088	99c58ce51ba20697bca03a5330262afc21071866b1ea5b1a048f7a9e0f243732.exe	28
PID 1088 wrote to memory of 932	1088	99c58ce51ba20697bca03a5330262afc21071866b1ea5b1a048f7a9e0f243732.exe	28

C:\Users\Admin\AppData\Local\Temp\99c58ce51ba20697bca03a5330262afc21071866b1ea5b1a048f7a9e0f243732.exe
"C:\Users\Admin\AppData\Local\Temp\99c58ce51ba20697bca03a5330262afc21071866b1ea5b1a048f7a9e0f243732.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1088
- C:\Users\Admin\AppData\Local\Temp\99c58ce51ba20697bca03a5330262afc21071866b1ea5b1a048f7a9e0f243732.exe
  "C:\Users\Admin\AppData\Local\Temp\99c58ce51ba20697bca03a5330262afc21071866b1ea5b1a048f7a9e0f243732.exe" Track="0001001000"
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:932

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/932-54-0x0000000000400000-0x00000000004F2000-memory.dmp

Filesize
968KB

Download
memory/932-55-0x0000000000400000-0x00000000004F2000-memory.dmp

Filesize
968KB

Download
memory/932-57-0x0000000000400000-0x00000000004F2000-memory.dmp

Filesize
968KB

Download
memory/932-58-0x0000000000400000-0x00000000004F2000-memory.dmp

Filesize
968KB

Download
memory/932-61-0x0000000074C91000-0x0000000074C93000-memory.dmp

Filesize
8KB

Download
memory/932-62-0x0000000000400000-0x00000000004F2000-memory.dmp

Filesize
968KB

Download
memory/932-63-0x0000000000400000-0x00000000004F2000-memory.dmp

Filesize
968KB

Download
memory/932-64-0x0000000000400000-0x00000000004F2000-memory.dmp

Filesize
968KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads