6d87c385194f0def116818468b69ad2b3ee4ac94700e006cdf90aff7f3daf012

Analysis

max time kernel
148s
max time network
138s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
25-12-2023 07:57

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General

Target

1072a83c193e77a54f1935b2c1f4934a.exe
Size

1.0MB
MD5

1072a83c193e77a54f1935b2c1f4934a
SHA1

d942081ab814ff8f7fbc0980113466c7acf4f688
SHA256

6d87c385194f0def116818468b69ad2b3ee4ac94700e006cdf90aff7f3daf012
SHA512

75cc4ec31c213e191cfad58798e4086fc357a8f46d3eb7419ea570ff2885433a85c6730722aaae0ae070638c1f97f1acc54cbaa755868024cc40a115b8566e52
SSDEEP

12288:rbpHYUKy5U1bo9t8DMRSW9vbciUiLuAvOxMt11i27QitjNUUw:r5sJo6YrFUiyAak11LtjNw

Score

7^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4596	svchest425075242507520.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/992-0-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral2/memory/992-1-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral2/memory/4596-12-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral2/memory/4596-10-0x0000000000400000-0x0000000000597000-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\\1072a83c193e77a54f1935b2c1f4934a.exe"	1072a83c193e77a54f1935b2c1f4934a.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
992	1072a83c193e77a54f1935b2c1f4934a.exe
4596	svchest425075242507520.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\Windows\BJ.exe	1072a83c193e77a54f1935b2c1f4934a.exe
File created	\??\c:\Windows\BJ.exe	1072a83c193e77a54f1935b2c1f4934a.exe
File created	\??\c:\Windows\svchest425075242507520.exe	1072a83c193e77a54f1935b2c1f4934a.exe
File opened for modification	\??\c:\Windows\svchest425075242507520.exe	1072a83c193e77a54f1935b2c1f4934a.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 992 wrote to memory of 4596	992	1072a83c193e77a54f1935b2c1f4934a.exe	16
PID 992 wrote to memory of 4596	992	1072a83c193e77a54f1935b2c1f4934a.exe	16
PID 992 wrote to memory of 4596	992	1072a83c193e77a54f1935b2c1f4934a.exe	16

C:\Users\Admin\AppData\Local\Temp\1072a83c193e77a54f1935b2c1f4934a.exe
"C:\Users\Admin\AppData\Local\Temp\1072a83c193e77a54f1935b2c1f4934a.exe"
1⤵
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:992
- \??\c:\Windows\svchest425075242507520.exe
  c:\Windows\svchest425075242507520.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  PID:4596

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

Replay Monitor

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Downloads

memory/992-0-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/992-1-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/992-13-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/4596-12-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/4596-10-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads