b61f8fe03964e464e6cd474cc8848b2f92a3a7fd8e3b9ca6f3890d39d5087184

Analysis

max time kernel
40s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
25-11-2022 08:59

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General

Target

b61f8fe03964e464e6cd474cc8848b2f92a3a7fd8e3b9ca6f3890d39d5087184.exe
Size

935KB
MD5

4371094f3f80b1e60eddfe829f06b871
SHA1

92d177dd8e1750649c43e45f6167241e4eef640b
SHA256

b61f8fe03964e464e6cd474cc8848b2f92a3a7fd8e3b9ca6f3890d39d5087184
SHA512

3706db256ad42476001413714aac37e6e54b1d645e7709cad85b70597428d6a829aa12fbac49248cc98da6d0b3d4761ba5f8e9e9e158719939e5c428ceea4f85
SSDEEP

12288:J5Yr15f753d5QWIDz/Wz9NCyzHinLipNDJ5eoFb0OZ/WiGaks+HL63S27x4v:JyHv5Z+Wzv7AiBll0OBWi6si9GG

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/1116-55-0x0000000000400000-0x00000000004F2000-memory.dmp	upx
behavioral1/memory/1116-57-0x0000000000400000-0x00000000004F2000-memory.dmp	upx
behavioral1/memory/1116-58-0x0000000000400000-0x00000000004F2000-memory.dmp	upx
behavioral1/memory/1116-62-0x0000000000400000-0x00000000004F2000-memory.dmp	upx
behavioral1/memory/1116-63-0x0000000000400000-0x00000000004F2000-memory.dmp	upx
behavioral1/memory/1116-64-0x0000000000400000-0x00000000004F2000-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	b61f8fe03964e464e6cd474cc8848b2f92a3a7fd8e3b9ca6f3890d39d5087184.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	b61f8fe03964e464e6cd474cc8848b2f92a3a7fd8e3b9ca6f3890d39d5087184.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	b61f8fe03964e464e6cd474cc8848b2f92a3a7fd8e3b9ca6f3890d39d5087184.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	b61f8fe03964e464e6cd474cc8848b2f92a3a7fd8e3b9ca6f3890d39d5087184.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1672 set thread context of 1116	1672	b61f8fe03964e464e6cd474cc8848b2f92a3a7fd8e3b9ca6f3890d39d5087184.exe	29

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1116	b61f8fe03964e464e6cd474cc8848b2f92a3a7fd8e3b9ca6f3890d39d5087184.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1672 wrote to memory of 1116	1672	b61f8fe03964e464e6cd474cc8848b2f92a3a7fd8e3b9ca6f3890d39d5087184.exe	29
PID 1672 wrote to memory of 1116	1672	b61f8fe03964e464e6cd474cc8848b2f92a3a7fd8e3b9ca6f3890d39d5087184.exe	29
PID 1672 wrote to memory of 1116	1672	b61f8fe03964e464e6cd474cc8848b2f92a3a7fd8e3b9ca6f3890d39d5087184.exe	29
PID 1672 wrote to memory of 1116	1672	b61f8fe03964e464e6cd474cc8848b2f92a3a7fd8e3b9ca6f3890d39d5087184.exe	29
PID 1672 wrote to memory of 1116	1672	b61f8fe03964e464e6cd474cc8848b2f92a3a7fd8e3b9ca6f3890d39d5087184.exe	29
PID 1672 wrote to memory of 1116	1672	b61f8fe03964e464e6cd474cc8848b2f92a3a7fd8e3b9ca6f3890d39d5087184.exe	29
PID 1672 wrote to memory of 1116	1672	b61f8fe03964e464e6cd474cc8848b2f92a3a7fd8e3b9ca6f3890d39d5087184.exe	29
PID 1672 wrote to memory of 1116	1672	b61f8fe03964e464e6cd474cc8848b2f92a3a7fd8e3b9ca6f3890d39d5087184.exe	29

C:\Users\Admin\AppData\Local\Temp\b61f8fe03964e464e6cd474cc8848b2f92a3a7fd8e3b9ca6f3890d39d5087184.exe
"C:\Users\Admin\AppData\Local\Temp\b61f8fe03964e464e6cd474cc8848b2f92a3a7fd8e3b9ca6f3890d39d5087184.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1672
- C:\Users\Admin\AppData\Local\Temp\b61f8fe03964e464e6cd474cc8848b2f92a3a7fd8e3b9ca6f3890d39d5087184.exe
  "C:\Users\Admin\AppData\Local\Temp\b61f8fe03964e464e6cd474cc8848b2f92a3a7fd8e3b9ca6f3890d39d5087184.exe" Track="0001001000"
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:1116

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/1116-55-0x0000000000400000-0x00000000004F2000-memory.dmp

Filesize
968KB

Download
memory/1116-54-0x0000000000400000-0x00000000004F2000-memory.dmp

Filesize
968KB

Download
memory/1116-57-0x0000000000400000-0x00000000004F2000-memory.dmp

Filesize
968KB

Download
memory/1116-58-0x0000000000400000-0x00000000004F2000-memory.dmp

Filesize
968KB

Download
memory/1116-61-0x0000000075DA1000-0x0000000075DA3000-memory.dmp

Filesize
8KB

Download
memory/1116-62-0x0000000000400000-0x00000000004F2000-memory.dmp

Filesize
968KB

Download
memory/1116-63-0x0000000000400000-0x00000000004F2000-memory.dmp

Filesize
968KB

Download
memory/1116-64-0x0000000000400000-0x00000000004F2000-memory.dmp

Filesize
968KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads