6206ac68cac9a9604d95e1b51751e9d369f6777d78fdf54005edd0a4eac8feaf

Analysis

max time kernel
121s
max time network
128s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
01/02/2024, 02:51

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General

Target

85bc2e8133ed78631bab10a4af9468bb.exe
Size

11KB
MD5

85bc2e8133ed78631bab10a4af9468bb
SHA1

1c409c5ec7fef0b3846a55e78b3a10fffdc4c0db
SHA256

6206ac68cac9a9604d95e1b51751e9d369f6777d78fdf54005edd0a4eac8feaf
SHA512

e93d176734bb091c31bfbb0943fdfc8401cdcaa1281ef4ba2f6e47a176c38fe7d1c4215339b2c4642236548dc75fbbf28491e0a78097b9f87c9b272837a493d7
SSDEEP

192:3ZH+V+cXezwP+OKrG1B141KLQpVgd6VHvk:Z+IcXeUPSrCB1sKLQpVgMHM

Score

7^/10

persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1316	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
816	winlogon.exe

Loads dropped DLL 2 IoCs

pid	Process
2112	85bc2e8133ed78631bab10a4af9468bb.exe
2112	85bc2e8133ed78631bab10a4af9468bb.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU Msn = "C:\\Users\\Admin\\AppData\\Roaming\\winlogon.exe"	winlogon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM Msn = "C:\\Users\\Admin\\AppData\\Roaming\\winlogon.exe"	winlogon.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2112 wrote to memory of 816	2112	85bc2e8133ed78631bab10a4af9468bb.exe	28
PID 2112 wrote to memory of 816	2112	85bc2e8133ed78631bab10a4af9468bb.exe	28
PID 2112 wrote to memory of 816	2112	85bc2e8133ed78631bab10a4af9468bb.exe	28
PID 2112 wrote to memory of 816	2112	85bc2e8133ed78631bab10a4af9468bb.exe	28
PID 2112 wrote to memory of 1316	2112	85bc2e8133ed78631bab10a4af9468bb.exe	29
PID 2112 wrote to memory of 1316	2112	85bc2e8133ed78631bab10a4af9468bb.exe	29
PID 2112 wrote to memory of 1316	2112	85bc2e8133ed78631bab10a4af9468bb.exe	29
PID 2112 wrote to memory of 1316	2112	85bc2e8133ed78631bab10a4af9468bb.exe	29

C:\Users\Admin\AppData\Local\Temp\85bc2e8133ed78631bab10a4af9468bb.exe
"C:\Users\Admin\AppData\Local\Temp\85bc2e8133ed78631bab10a4af9468bb.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2112
- C:\Users\Admin\AppData\Roaming\winlogon.exe
  "C:\Users\Admin\AppData\Roaming\winlogon.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  PID:816
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Users\Admin\AppData\Local\Temp\MDM4624.tmp_melt.bat
  2⤵
  - Deletes itself
  PID:1316

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\MDM4624.tmp_melt.bat

Filesize
266B

MD5
54cf583fa0f4eecec3459fe70ad512d8

SHA1
b804b7be6a7d339695ad3410c64b250c69bd5315

SHA256
784e6889fc93b057f49b7acbe44d011ef059837e0f39d1542d5cab79ddc443c5

SHA512
ff15489627327951d0ca10793f7521b7bbe562fc2f8c2d3e7484614df0d4546dd25dc4bc9e2d3246c797bd25ac8fc12eab61442e748aa738048872a3301a57d8

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\Users\Admin\AppData\Roaming\winlogon.exe

Filesize
11KB

MD5
85bc2e8133ed78631bab10a4af9468bb

SHA1
1c409c5ec7fef0b3846a55e78b3a10fffdc4c0db

SHA256
6206ac68cac9a9604d95e1b51751e9d369f6777d78fdf54005edd0a4eac8feaf

SHA512
e93d176734bb091c31bfbb0943fdfc8401cdcaa1281ef4ba2f6e47a176c38fe7d1c4215339b2c4642236548dc75fbbf28491e0a78097b9f87c9b272837a493d7

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads