53aa7b95790d4dbcb4ef2b1c7c1653768ff45ce7c7bafc2b4ac0583acfcb35be

Analysis

max time kernel
147s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-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
2468	svchest425075242507520.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/396-0-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral2/memory/396-1-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral2/files/0x000700000002322f-9.dat	upx
behavioral2/memory/2468-10-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral2/files/0x000700000002322f-7.dat	upx
behavioral2/files/0x000700000002322f-8.dat	upx
behavioral2/memory/2468-12-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral2/memory/396-13-0x0000000000400000-0x0000000000597000-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
396	0f4120251f54ac6c561ef3061dfd3793.exe
2468	svchest425075242507520.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	\??\c:\Windows\BJ.exe	0f4120251f54ac6c561ef3061dfd3793.exe
File opened for modification	\??\c:\Windows\BJ.exe	0f4120251f54ac6c561ef3061dfd3793.exe
File created	\??\c:\Windows\svchest425075242507520.exe	0f4120251f54ac6c561ef3061dfd3793.exe
File opened for modification	\??\c:\Windows\svchest425075242507520.exe	0f4120251f54ac6c561ef3061dfd3793.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 396 wrote to memory of 2468	396	0f4120251f54ac6c561ef3061dfd3793.exe	20
PID 396 wrote to memory of 2468	396	0f4120251f54ac6c561ef3061dfd3793.exe	20
PID 396 wrote to memory of 2468	396	0f4120251f54ac6c561ef3061dfd3793.exe	20

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:396
- \??\c:\Windows\svchest425075242507520.exe
  c:\Windows\svchest425075242507520.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  PID:2468

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\svchest425075242507520.exe

Filesize
36KB

MD5
a689bcee787b9b2397644f3faedb36d3

SHA1
6813f1d8ce9712a421e830912646f7c23ddc3807

SHA256
7ee8e6f7027b82f9562f68ac7f4addbc87e60a068c611202435332fbd3d8b7b9

SHA512
9157646bf9d5fe3a79134e73c1c53fa7969e5c77ddfbc6740b1fbff8b46b3217493983d6b4fd708db6038998f6f034d677ab9f075a1f51de1f684c5783189153

Download Submit
C:\Windows\svchest425075242507520.exe

Filesize
80KB

MD5
73b48fd7a17a15eab91cdcd1de1b56dc

SHA1
d2aa8e672512ef2e23d6665473bd2d05b46758d3

SHA256
dbe91fd4d10f569594d67043eb6179dfc62b41b79c1588eb2f5d58fc3a7b77f1

SHA512
7b76e80c1ea4619c7f7503202f4af615748b101b6eb89538205f6ef03547f9c3a42030b3a5ba47a690af83a0cd1dfe9d7260364daef8dc28475f258006d4998d

Download Submit
\??\c:\Windows\svchest425075242507520.exe

Filesize
96KB

MD5
4c90a4f924fd0ebc7fd56ae03c28b8c6

SHA1
83850dd91e3038f2fc3e2414ee7fc91a9cf816c2

SHA256
aeeb0b362900e68791f089a9fac740d14e71009db85bca3ab2c1ed4733e2ec7e

SHA512
b9657de917e052fcf7db7e9b58a5814aac0fc8fa3d935cd29be5bd7c7a07f5c0d2fa2156aa39e5a12f95ec24afe85180ff7e3b1495471d6d1c8feb91ab01b3ea

Download Submit
memory/396-0-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/396-1-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/396-13-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/2468-10-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/2468-12-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads