33eca90f535271e58a9fb2f17d32fcd7c2051cf2eaa78fe1f0c5c8273cbe0071

Analysis

max time kernel
151s
max time network
49s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
19/09/2022, 03:41

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General

Target

33eca90f535271e58a9fb2f17d32fcd7c2051cf2eaa78fe1f0c5c8273cbe0071.exe
Size

851KB
MD5

0ed5b8d044eb2fbeb2282ae163723181
SHA1

46d56600000581593101213eec45cd0cdf8e7c8a
SHA256

33eca90f535271e58a9fb2f17d32fcd7c2051cf2eaa78fe1f0c5c8273cbe0071
SHA512

e3b0183fbcd5ed416a3ac4abe43ac1aad63276d9c31501b939b5b49703fb7467c48eb0a8d3416565b380677b443b4d0716d41e11b0871b163287f4168b47a2a4
SSDEEP

12288:rbpHYUKy5U1bo9t8DMRSW9vbciUiLuAvOxMt11i27Qitjd5:r5sJo6YrFUiyAak11Ltjd5

Score

8^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
828	svchest000.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2032-55-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral1/files/0x0008000000014219-58.dat	upx
behavioral1/memory/2032-60-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral1/memory/828-64-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral1/memory/2032-65-0x0000000000400000-0x0000000000597000-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	33eca90f535271e58a9fb2f17d32fcd7c2051cf2eaa78fe1f0c5c8273cbe0071.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Kris = "C:\\Users\\Admin\\AppData\\Local\\Temp\\33eca90f535271e58a9fb2f17d32fcd7c2051cf2eaa78fe1f0c5c8273cbe0071.exe"	33eca90f535271e58a9fb2f17d32fcd7c2051cf2eaa78fe1f0c5c8273cbe0071.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2032	33eca90f535271e58a9fb2f17d32fcd7c2051cf2eaa78fe1f0c5c8273cbe0071.exe
828	svchest000.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\Windows\svchest000.exe	33eca90f535271e58a9fb2f17d32fcd7c2051cf2eaa78fe1f0c5c8273cbe0071.exe
File created	\??\c:\Windows\BJ.exe	33eca90f535271e58a9fb2f17d32fcd7c2051cf2eaa78fe1f0c5c8273cbe0071.exe
File opened for modification	\??\c:\Windows\BJ.exe	33eca90f535271e58a9fb2f17d32fcd7c2051cf2eaa78fe1f0c5c8273cbe0071.exe
File created	\??\c:\Windows\svchest000.exe	33eca90f535271e58a9fb2f17d32fcd7c2051cf2eaa78fe1f0c5c8273cbe0071.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2032 wrote to memory of 828	2032	33eca90f535271e58a9fb2f17d32fcd7c2051cf2eaa78fe1f0c5c8273cbe0071.exe	26
PID 2032 wrote to memory of 828	2032	33eca90f535271e58a9fb2f17d32fcd7c2051cf2eaa78fe1f0c5c8273cbe0071.exe	26
PID 2032 wrote to memory of 828	2032	33eca90f535271e58a9fb2f17d32fcd7c2051cf2eaa78fe1f0c5c8273cbe0071.exe	26
PID 2032 wrote to memory of 828	2032	33eca90f535271e58a9fb2f17d32fcd7c2051cf2eaa78fe1f0c5c8273cbe0071.exe	26

C:\Users\Admin\AppData\Local\Temp\33eca90f535271e58a9fb2f17d32fcd7c2051cf2eaa78fe1f0c5c8273cbe0071.exe
"C:\Users\Admin\AppData\Local\Temp\33eca90f535271e58a9fb2f17d32fcd7c2051cf2eaa78fe1f0c5c8273cbe0071.exe"
1⤵
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2032
- \??\c:\Windows\svchest000.exe
  c:\Windows\svchest000.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  PID:828

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
851KB

MD5
0ed5b8d044eb2fbeb2282ae163723181

SHA1
46d56600000581593101213eec45cd0cdf8e7c8a

SHA256
33eca90f535271e58a9fb2f17d32fcd7c2051cf2eaa78fe1f0c5c8273cbe0071

SHA512
e3b0183fbcd5ed416a3ac4abe43ac1aad63276d9c31501b939b5b49703fb7467c48eb0a8d3416565b380677b443b4d0716d41e11b0871b163287f4168b47a2a4

Download Submit
memory/828-64-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/2032-54-0x0000000075A71000-0x0000000075A73000-memory.dmp

Filesize
8KB

Download
memory/2032-55-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/2032-60-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/2032-61-0x00000000026E0000-0x0000000002877000-memory.dmp

Filesize
1.6MB

Download
memory/2032-65-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download