4ffcef811b06685f47df5b5118ab7aded2d438064e76199373b22584921071c2

Analysis

max time kernel
169s
max time network
131s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
25/12/2023, 03:24

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General

Target

02d39bdf042aa00c8bbc6a6dc2549b71.exe
Size

963KB
MD5

02d39bdf042aa00c8bbc6a6dc2549b71
SHA1

190576579181f53d5920b470a795f454acbdb823
SHA256

4ffcef811b06685f47df5b5118ab7aded2d438064e76199373b22584921071c2
SHA512

fae9b2ba344220a36106b6102cf21d90a9880aad6efed519ab01ab596220888baaaf493a8a2ea1263d82c95fddcb75aa6443b6cd46d05b9f177198a9e84b059b
SSDEEP

12288:rbpHYUKy5U1bo9t8DMRSW9vbciUiLuAvOxMt11i27QitjrHANUTNZ0i:r5sJo6YrFUiyAak11Ltjx0i

Score

7^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2844	svchest000.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2752-0-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral1/memory/2752-1-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral1/files/0x000e0000000139ec-8.dat	upx
behavioral1/files/0x000e0000000139ec-7.dat	upx
behavioral1/memory/2844-9-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral1/memory/2844-13-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral1/memory/2752-14-0x0000000000400000-0x0000000000597000-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\\02d39bdf042aa00c8bbc6a6dc2549b71.exe"	02d39bdf042aa00c8bbc6a6dc2549b71.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2752	02d39bdf042aa00c8bbc6a6dc2549b71.exe
2844	svchest000.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	\??\c:\Windows\svchest000.exe	02d39bdf042aa00c8bbc6a6dc2549b71.exe
File opened for modification	\??\c:\Windows\svchest000.exe	02d39bdf042aa00c8bbc6a6dc2549b71.exe
File opened for modification	\??\c:\Windows\BJ.exe	02d39bdf042aa00c8bbc6a6dc2549b71.exe
File created	\??\c:\Windows\BJ.exe	02d39bdf042aa00c8bbc6a6dc2549b71.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2752 wrote to memory of 2844	2752	02d39bdf042aa00c8bbc6a6dc2549b71.exe	27
PID 2752 wrote to memory of 2844	2752	02d39bdf042aa00c8bbc6a6dc2549b71.exe	27
PID 2752 wrote to memory of 2844	2752	02d39bdf042aa00c8bbc6a6dc2549b71.exe	27
PID 2752 wrote to memory of 2844	2752	02d39bdf042aa00c8bbc6a6dc2549b71.exe	27

C:\Users\Admin\AppData\Local\Temp\02d39bdf042aa00c8bbc6a6dc2549b71.exe
"C:\Users\Admin\AppData\Local\Temp\02d39bdf042aa00c8bbc6a6dc2549b71.exe"
1⤵
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2752
- \??\c:\Windows\svchest000.exe
  c:\Windows\svchest000.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  PID:2844

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

C:\Windows\svchest000.exe

Filesize
228KB

MD5
3afdc90b43316aa706bf197fcef285f4

SHA1
3db4d0180a543d792ad7a3de5a845b600e77479d

SHA256
53087136ac598ee07e901890f651e1d3be8f1d76b52d821d4259fc47fef1bde9

SHA512
5e5540b606dd732391cbc94d7369ee70cf35eea3585d3b388d9e17e62e49b6bf78430f5178bc4aa99aa6493959f73a2d4bf7c1744c80d99699b18e02a46a4a2f

Download Submit
C:\Windows\svchest000.exe

Filesize
234KB

MD5
06c0ee7e77d8e88f5c8cd45f36ca18ac

SHA1
a028c4e9ed8f8bef039d6f2996e809c433f3434d

SHA256
971d6eb39df01257d59dd0ca07778455cbec3cf09580d8f9c5bfec1fa85259e5

SHA512
d607da4df4e8689108d0f3d39187e5e6294f73cc3dbb8d768c66b498cfff1d69262425d2c540bfe044b79ab1761e35990c7572b32d4a98d8660f3b2394e2971c

Download Submit
memory/2752-0-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/2752-1-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/2752-14-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/2752-15-0x0000000002730000-0x00000000028C7000-memory.dmp

Filesize
1.6MB

Download
memory/2844-9-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/2844-13-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads