53aa7b95790d4dbcb4ef2b1c7c1653768ff45ce7c7bafc2b4ac0583acfcb35be

Analysis

max time kernel
150s
max time network
122s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
25/12/2023, 07:36

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General

Target

0f4120251f54ac6c561ef3061dfd3793.exe
Size

768KB
MD5

0f4120251f54ac6c561ef3061dfd3793
SHA1

6dc0bd3a5a9166fcc2afd714bdf6047b11e47aad
SHA256

53aa7b95790d4dbcb4ef2b1c7c1653768ff45ce7c7bafc2b4ac0583acfcb35be
SHA512

a43a432e156d2a833abe14c26067976992c13275364d1115c03b7ffe7617aa7e24e1c26bb7babf66ea1a97bf8c68ec04101fea6e102cdbced08c2121ca2c2a24
SSDEEP

12288:rbpHYUKy5U1bo9t8DMRSW9vbciUiLuAvOxMt11i27QitjGLV:r5sJo6YrFUiyAak11LtjGLV

Score

7^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2312	svchest000.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2212-0-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral1/memory/2212-1-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral1/files/0x000900000001225c-8.dat	upx
behavioral1/memory/2212-9-0x00000000027C0000-0x0000000002957000-memory.dmp	upx
behavioral1/memory/2312-11-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral1/memory/2312-14-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral1/memory/2212-15-0x0000000000400000-0x0000000000597000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Kris = "C:\\Users\\Admin\\AppData\\Local\\Temp\\0f4120251f54ac6c561ef3061dfd3793.exe"	0f4120251f54ac6c561ef3061dfd3793.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2212	0f4120251f54ac6c561ef3061dfd3793.exe
2312	svchest000.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\Windows\BJ.exe	0f4120251f54ac6c561ef3061dfd3793.exe
File created	\??\c:\Windows\svchest000.exe	0f4120251f54ac6c561ef3061dfd3793.exe
File opened for modification	\??\c:\Windows\svchest000.exe	0f4120251f54ac6c561ef3061dfd3793.exe
File created	\??\c:\Windows\BJ.exe	0f4120251f54ac6c561ef3061dfd3793.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2212 wrote to memory of 2312	2212	0f4120251f54ac6c561ef3061dfd3793.exe	28
PID 2212 wrote to memory of 2312	2212	0f4120251f54ac6c561ef3061dfd3793.exe	28
PID 2212 wrote to memory of 2312	2212	0f4120251f54ac6c561ef3061dfd3793.exe	28
PID 2212 wrote to memory of 2312	2212	0f4120251f54ac6c561ef3061dfd3793.exe	28

C:\Users\Admin\AppData\Local\Temp\0f4120251f54ac6c561ef3061dfd3793.exe
"C:\Users\Admin\AppData\Local\Temp\0f4120251f54ac6c561ef3061dfd3793.exe"
1⤵
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2212
- \??\c:\Windows\svchest000.exe
  c:\Windows\svchest000.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  PID:2312

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\svchest000.exe

Filesize
768KB

MD5
0f4120251f54ac6c561ef3061dfd3793

SHA1
6dc0bd3a5a9166fcc2afd714bdf6047b11e47aad

SHA256
53aa7b95790d4dbcb4ef2b1c7c1653768ff45ce7c7bafc2b4ac0583acfcb35be

SHA512
a43a432e156d2a833abe14c26067976992c13275364d1115c03b7ffe7617aa7e24e1c26bb7babf66ea1a97bf8c68ec04101fea6e102cdbced08c2121ca2c2a24

Download Submit
memory/2212-0-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/2212-1-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/2212-9-0x00000000027C0000-0x0000000002957000-memory.dmp

Filesize
1.6MB

Download
memory/2212-15-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/2312-11-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/2312-14-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads