77478ece1b40a4cf1c6000d878cd3573df0205c198b866bf1ea8b1842299a09e

Analysis

max time kernel
185s
max time network
49s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
07/11/2022, 05:42

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General

Target

77478ece1b40a4cf1c6000d878cd3573df0205c198b866bf1ea8b1842299a09e.exe
Size

856KB
MD5

0d0a017c71a5b8755839192b82992b71
SHA1

547499649f9ac4517a2e5ec22b5eec3017626f85
SHA256

77478ece1b40a4cf1c6000d878cd3573df0205c198b866bf1ea8b1842299a09e
SHA512

9704d6114e91dcc84e4e5cca364534d9d3e9bcfc61a32d8368a1aae67c64d0b0643cb6f58d012822392664dde731e50074384792751a18a503ea9f2af1201b74
SSDEEP

12288:rbpHYUKy5U1bo9t8DMRSW9vbciUiLuAvOxMt11i27Qitj0:r5sJo6YrFUiyAak11Ltj0

Score

8^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
520	svchest000.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1428-55-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral1/memory/1428-56-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral1/files/0x0009000000013359-59.dat	upx
behavioral1/memory/520-63-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral1/memory/1428-64-0x0000000000400000-0x0000000000597000-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	77478ece1b40a4cf1c6000d878cd3573df0205c198b866bf1ea8b1842299a09e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Kris = "C:\\Users\\Admin\\AppData\\Local\\Temp\\77478ece1b40a4cf1c6000d878cd3573df0205c198b866bf1ea8b1842299a09e.exe"	77478ece1b40a4cf1c6000d878cd3573df0205c198b866bf1ea8b1842299a09e.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
1428	77478ece1b40a4cf1c6000d878cd3573df0205c198b866bf1ea8b1842299a09e.exe
520	svchest000.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\Windows\svchest000.exe	77478ece1b40a4cf1c6000d878cd3573df0205c198b866bf1ea8b1842299a09e.exe
File created	\??\c:\Windows\BJ.exe	77478ece1b40a4cf1c6000d878cd3573df0205c198b866bf1ea8b1842299a09e.exe
File opened for modification	\??\c:\Windows\BJ.exe	77478ece1b40a4cf1c6000d878cd3573df0205c198b866bf1ea8b1842299a09e.exe
File created	\??\c:\Windows\svchest000.exe	77478ece1b40a4cf1c6000d878cd3573df0205c198b866bf1ea8b1842299a09e.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1428 wrote to memory of 520	1428	77478ece1b40a4cf1c6000d878cd3573df0205c198b866bf1ea8b1842299a09e.exe	28
PID 1428 wrote to memory of 520	1428	77478ece1b40a4cf1c6000d878cd3573df0205c198b866bf1ea8b1842299a09e.exe	28
PID 1428 wrote to memory of 520	1428	77478ece1b40a4cf1c6000d878cd3573df0205c198b866bf1ea8b1842299a09e.exe	28
PID 1428 wrote to memory of 520	1428	77478ece1b40a4cf1c6000d878cd3573df0205c198b866bf1ea8b1842299a09e.exe	28

C:\Users\Admin\AppData\Local\Temp\77478ece1b40a4cf1c6000d878cd3573df0205c198b866bf1ea8b1842299a09e.exe
"C:\Users\Admin\AppData\Local\Temp\77478ece1b40a4cf1c6000d878cd3573df0205c198b866bf1ea8b1842299a09e.exe"
1⤵
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1428
- \??\c:\Windows\svchest000.exe
  c:\Windows\svchest000.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  PID:520

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
856KB

MD5
0d0a017c71a5b8755839192b82992b71

SHA1
547499649f9ac4517a2e5ec22b5eec3017626f85

SHA256
77478ece1b40a4cf1c6000d878cd3573df0205c198b866bf1ea8b1842299a09e

SHA512
9704d6114e91dcc84e4e5cca364534d9d3e9bcfc61a32d8368a1aae67c64d0b0643cb6f58d012822392664dde731e50074384792751a18a503ea9f2af1201b74

Download Submit
memory/520-63-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/1428-54-0x0000000076261000-0x0000000076263000-memory.dmp

Filesize
8KB

Download
memory/1428-55-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/1428-56-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/1428-64-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download