17fc8e61558f799be99521a4f2c9c810588220f41d4816ad33f15afd31539567

Analysis

max time kernel
150s
max time network
44s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
07/11/2022, 05:43

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General

Target

17fc8e61558f799be99521a4f2c9c810588220f41d4816ad33f15afd31539567.exe
Size

1.1MB
MD5

0f4991149c2e367ca29cc97eda9480ec
SHA1

076fde76753de701efa9d1c560aa29d4ff774945
SHA256

17fc8e61558f799be99521a4f2c9c810588220f41d4816ad33f15afd31539567
SHA512

2693724f3ac71d44d580ef2adc0db7b8618d10d6f24968b10df2443724ac4587ed4447b146015157808baf566e1aa6173491226fce077b799097208d6bb458be
SSDEEP

12288:rbpHYUKy5U1bo9t8DMRSW9vbciUiLuAvOxMt11i27QitjGQi:r5sJo6YrFUiyAak11LtjGQi

Score

8^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1352	svchest000.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1504-55-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral1/memory/1504-57-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral1/files/0x000a0000000133ab-59.dat	upx
behavioral1/memory/1352-61-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral1/memory/1352-63-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral1/memory/1504-65-0x0000000000400000-0x0000000000597000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	17fc8e61558f799be99521a4f2c9c810588220f41d4816ad33f15afd31539567.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Kris = "C:\\Users\\Admin\\AppData\\Local\\Temp\\17fc8e61558f799be99521a4f2c9c810588220f41d4816ad33f15afd31539567.exe"	17fc8e61558f799be99521a4f2c9c810588220f41d4816ad33f15afd31539567.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
1504	17fc8e61558f799be99521a4f2c9c810588220f41d4816ad33f15afd31539567.exe
1352	svchest000.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\Windows\BJ.exe	17fc8e61558f799be99521a4f2c9c810588220f41d4816ad33f15afd31539567.exe
File created	\??\c:\Windows\BJ.exe	17fc8e61558f799be99521a4f2c9c810588220f41d4816ad33f15afd31539567.exe
File created	\??\c:\Windows\svchest000.exe	17fc8e61558f799be99521a4f2c9c810588220f41d4816ad33f15afd31539567.exe
File opened for modification	\??\c:\Windows\svchest000.exe	17fc8e61558f799be99521a4f2c9c810588220f41d4816ad33f15afd31539567.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1504 wrote to memory of 1352	1504	17fc8e61558f799be99521a4f2c9c810588220f41d4816ad33f15afd31539567.exe	26
PID 1504 wrote to memory of 1352	1504	17fc8e61558f799be99521a4f2c9c810588220f41d4816ad33f15afd31539567.exe	26
PID 1504 wrote to memory of 1352	1504	17fc8e61558f799be99521a4f2c9c810588220f41d4816ad33f15afd31539567.exe	26
PID 1504 wrote to memory of 1352	1504	17fc8e61558f799be99521a4f2c9c810588220f41d4816ad33f15afd31539567.exe	26

C:\Users\Admin\AppData\Local\Temp\17fc8e61558f799be99521a4f2c9c810588220f41d4816ad33f15afd31539567.exe
"C:\Users\Admin\AppData\Local\Temp\17fc8e61558f799be99521a4f2c9c810588220f41d4816ad33f15afd31539567.exe"
1⤵
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1504
- \??\c:\Windows\svchest000.exe
  c:\Windows\svchest000.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  PID:1352

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\svchest000.exe

Filesize
1.1MB

MD5
0f4991149c2e367ca29cc97eda9480ec

SHA1
076fde76753de701efa9d1c560aa29d4ff774945

SHA256
17fc8e61558f799be99521a4f2c9c810588220f41d4816ad33f15afd31539567

SHA512
2693724f3ac71d44d580ef2adc0db7b8618d10d6f24968b10df2443724ac4587ed4447b146015157808baf566e1aa6173491226fce077b799097208d6bb458be

Download Submit
memory/1352-61-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/1352-63-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/1504-54-0x00000000768A1000-0x00000000768A3000-memory.dmp

Filesize
8KB

Download
memory/1504-55-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/1504-57-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/1504-64-0x00000000025A0000-0x0000000002737000-memory.dmp

Filesize
1.6MB

Download
memory/1504-65-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download