1eec256e20fddb9e65cc001c0f741c6d172ba569533c8a1055dc16be81b36efe

Analysis

max time kernel
155s
max time network
173s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
07/11/2022, 19:54

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General

Target

1eec256e20fddb9e65cc001c0f741c6d172ba569533c8a1055dc16be81b36efe.exe
Size

12KB
MD5

02a05670deae40f5238a0b00f772462a
SHA1

923d05b5e669b5f757a725f7851ab4575680bae8
SHA256

1eec256e20fddb9e65cc001c0f741c6d172ba569533c8a1055dc16be81b36efe
SHA512

4ee816b028540defa46457760302492a1600b2b6494c548e0db77ca4bb41ae4980c0b674e0a8da41601e8ca0e5cc6e5ed21a3f3a5fb963df07b97c9603e21267
SSDEEP

384:xHrgfffZNVi6jAVN6E8nJjeM7qrOf/NrV:1g3xC6jguJjveyV

Score

8^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3540	MsEss.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0008000000022dff-136.dat	upx
behavioral2/files/0x0008000000022dff-135.dat	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\	MsEss.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft Security Essentials = "C:\\Users\\Admin\\AppData\\Roaming\\MsEss.exe"	MsEss.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4412 wrote to memory of 3540	4412	1eec256e20fddb9e65cc001c0f741c6d172ba569533c8a1055dc16be81b36efe.exe	80
PID 4412 wrote to memory of 3540	4412	1eec256e20fddb9e65cc001c0f741c6d172ba569533c8a1055dc16be81b36efe.exe	80
PID 4412 wrote to memory of 3540	4412	1eec256e20fddb9e65cc001c0f741c6d172ba569533c8a1055dc16be81b36efe.exe	80

C:\Users\Admin\AppData\Local\Temp\1eec256e20fddb9e65cc001c0f741c6d172ba569533c8a1055dc16be81b36efe.exe
"C:\Users\Admin\AppData\Local\Temp\1eec256e20fddb9e65cc001c0f741c6d172ba569533c8a1055dc16be81b36efe.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4412
- C:\Users\Admin\AppData\Roaming\MsEss.exe
  "C:\Users\Admin\AppData\Roaming\MsEss.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  PID:3540

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:\Users\Admin\AppData\Roaming\MsEss.exe

Filesize
12KB

MD5
02a05670deae40f5238a0b00f772462a

SHA1
923d05b5e669b5f757a725f7851ab4575680bae8

SHA256
1eec256e20fddb9e65cc001c0f741c6d172ba569533c8a1055dc16be81b36efe

SHA512
4ee816b028540defa46457760302492a1600b2b6494c548e0db77ca4bb41ae4980c0b674e0a8da41601e8ca0e5cc6e5ed21a3f3a5fb963df07b97c9603e21267

Download Submit
C:\Users\Admin\AppData\Roaming\MsEss.exe

Filesize
12KB

MD5
02a05670deae40f5238a0b00f772462a

SHA1
923d05b5e669b5f757a725f7851ab4575680bae8

SHA256
1eec256e20fddb9e65cc001c0f741c6d172ba569533c8a1055dc16be81b36efe

SHA512
4ee816b028540defa46457760302492a1600b2b6494c548e0db77ca4bb41ae4980c0b674e0a8da41601e8ca0e5cc6e5ed21a3f3a5fb963df07b97c9603e21267

Download Submit
memory/3540-137-0x0000000000400000-0x000000000040D8CA-memory.dmp

Filesize
54KB

Download
memory/3540-138-0x0000000000400000-0x000000000040D8CA-memory.dmp

Filesize
54KB

Download
memory/4412-132-0x0000000000400000-0x000000000040D8CA-memory.dmp

Filesize
54KB

Download
memory/4412-133-0x0000000002090000-0x00000000020AA000-memory.dmp

Filesize
104KB

Download