3c96327c26c0f0d91e048d75c3b7c91f0caddf47d7eb8ab4ec75409deaa70bdc

General

Target

3c96327c26c0f0d91e048d75c3b7c91f0caddf47d7eb8ab4ec75409deaa70bdc.exe
Size

165KB
MD5

83c0b99427c026aad36b0d8204377702
SHA1

76d17eff5dbe5d9129a35c70c31aef5c458827f3
SHA256

3c96327c26c0f0d91e048d75c3b7c91f0caddf47d7eb8ab4ec75409deaa70bdc
SHA512

c8ceb8ea0ebfaa4e79871893938b5bb0c7864278cc5fafc37bd3312ccb72e95ed745188320ee227693c04415d4751249bd6ea56096532cc317b04da11c52ca0b
SSDEEP

3072:uprxs7OnuUJ3qELyKAYwAg0FuAc4omfKs1Qc2:uprxErE23/AOT8isOJ

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1260	winlogin.exe

Modifies Installed Components in the registry 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Active Setup\Installed Components\05F16C88-71D3-42C1-BB4F-E9BAF7DB4A9E	winlogin.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Active Setup\Installed Components\05F16C88-71D3-42C1-BB4F-E9BAF7DB4A9E\cfg = "{0E98BAC7-5DDF-435B-B398-8BF63A298B0B}2403a }ZERMMMDR "	winlogin.exe

Deletes itself 1 IoCs

pid	Process
1312	cmd.exe

Loads dropped DLL 1 IoCs

pid	Process
1312	cmd.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\winlogin = "C:\\Users\\Admin\\AppData\\Roaming\\Windows\\winlogin.exe"	winlogin.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	winlogin.exe

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
5	api.ipify.org
6	api.ipify.org
4	api.ipify.org

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1280	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1736	3c96327c26c0f0d91e048d75c3b7c91f0caddf47d7eb8ab4ec75409deaa70bdc.exe
1260	winlogin.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeBackupPrivilege	1736	3c96327c26c0f0d91e048d75c3b7c91f0caddf47d7eb8ab4ec75409deaa70bdc.exe
Token: SeSecurityPrivilege	1736	3c96327c26c0f0d91e048d75c3b7c91f0caddf47d7eb8ab4ec75409deaa70bdc.exe
Token: SeSecurityPrivilege	1736	3c96327c26c0f0d91e048d75c3b7c91f0caddf47d7eb8ab4ec75409deaa70bdc.exe
Token: SeBackupPrivilege	1260	winlogin.exe
Token: SeSecurityPrivilege	1260	winlogin.exe
Token: SeSecurityPrivilege	1260	winlogin.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1736 wrote to memory of 1484	1736	3c96327c26c0f0d91e048d75c3b7c91f0caddf47d7eb8ab4ec75409deaa70bdc.exe	28
PID 1736 wrote to memory of 1484	1736	3c96327c26c0f0d91e048d75c3b7c91f0caddf47d7eb8ab4ec75409deaa70bdc.exe	28
PID 1736 wrote to memory of 1484	1736	3c96327c26c0f0d91e048d75c3b7c91f0caddf47d7eb8ab4ec75409deaa70bdc.exe	28
PID 1736 wrote to memory of 1484	1736	3c96327c26c0f0d91e048d75c3b7c91f0caddf47d7eb8ab4ec75409deaa70bdc.exe	28
PID 1736 wrote to memory of 1312	1736	3c96327c26c0f0d91e048d75c3b7c91f0caddf47d7eb8ab4ec75409deaa70bdc.exe	30
PID 1736 wrote to memory of 1312	1736	3c96327c26c0f0d91e048d75c3b7c91f0caddf47d7eb8ab4ec75409deaa70bdc.exe	30
PID 1736 wrote to memory of 1312	1736	3c96327c26c0f0d91e048d75c3b7c91f0caddf47d7eb8ab4ec75409deaa70bdc.exe	30
PID 1736 wrote to memory of 1312	1736	3c96327c26c0f0d91e048d75c3b7c91f0caddf47d7eb8ab4ec75409deaa70bdc.exe	30
PID 1312 wrote to memory of 1280	1312	cmd.exe	32
PID 1312 wrote to memory of 1280	1312	cmd.exe	32
PID 1312 wrote to memory of 1280	1312	cmd.exe	32
PID 1312 wrote to memory of 1280	1312	cmd.exe	32
PID 1312 wrote to memory of 1260	1312	cmd.exe	33
PID 1312 wrote to memory of 1260	1312	cmd.exe	33
PID 1312 wrote to memory of 1260	1312	cmd.exe	33
PID 1312 wrote to memory of 1260	1312	cmd.exe	33

C:\Users\Admin\AppData\Local\Temp\3c96327c26c0f0d91e048d75c3b7c91f0caddf47d7eb8ab4ec75409deaa70bdc.exe
"C:\Users\Admin\AppData\Local\Temp\3c96327c26c0f0d91e048d75c3b7c91f0caddf47d7eb8ab4ec75409deaa70bdc.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1736
- C:\Windows\SysWOW64\cmd.exe
  cmd /D /R type "C:\Users\Admin\AppData\Roaming\Windows\winlogin.exe" > ___ && move /Y ___ "C:\Users\Admin\AppData\Roaming\Windows\winlogin.exe"
  2⤵
  PID:1484
- C:\Windows\SysWOW64\cmd.exe
  cmd /D /R ping -n 10 localhost && del "C:\Users\Admin\AppData\Local\Temp\3c96327c26c0f0d91e048d75c3b7c91f0caddf47d7eb8ab4ec75409deaa70bdc.exe" && start /B "" "C:\Users\Admin\AppData\Roaming\Windows\winlogin.exe" && exit
  2⤵
  - Deletes itself
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1312
- - C:\Windows\SysWOW64\PING.EXE
    ping -n 10 localhost
    3⤵
    - Runs ping.exe
    PID:1280
- - C:\Users\Admin\AppData\Roaming\Windows\winlogin.exe
    "C:\Users\Admin\AppData\Roaming\Windows\winlogin.exe"
    3⤵
    - Executes dropped EXE
    - Modifies Installed Components in the registry
    - Adds Run key to start application
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1260

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

2

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Remote System Discovery

1

T1018

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Windows\winlogin.exe

Filesize
165KB

MD5
83c0b99427c026aad36b0d8204377702

SHA1
76d17eff5dbe5d9129a35c70c31aef5c458827f3

SHA256
3c96327c26c0f0d91e048d75c3b7c91f0caddf47d7eb8ab4ec75409deaa70bdc

SHA512
c8ceb8ea0ebfaa4e79871893938b5bb0c7864278cc5fafc37bd3312ccb72e95ed745188320ee227693c04415d4751249bd6ea56096532cc317b04da11c52ca0b

Download Submit
C:\Users\Admin\AppData\Roaming\Windows\winlogin.exe

Filesize
165KB

MD5
83c0b99427c026aad36b0d8204377702

SHA1
76d17eff5dbe5d9129a35c70c31aef5c458827f3

SHA256
3c96327c26c0f0d91e048d75c3b7c91f0caddf47d7eb8ab4ec75409deaa70bdc

SHA512
c8ceb8ea0ebfaa4e79871893938b5bb0c7864278cc5fafc37bd3312ccb72e95ed745188320ee227693c04415d4751249bd6ea56096532cc317b04da11c52ca0b

Download Submit
C:\Users\Admin\AppData\Roaming\Windows\winlogin.exe

Filesize
165KB

MD5
83c0b99427c026aad36b0d8204377702

SHA1
76d17eff5dbe5d9129a35c70c31aef5c458827f3

SHA256
3c96327c26c0f0d91e048d75c3b7c91f0caddf47d7eb8ab4ec75409deaa70bdc

SHA512
c8ceb8ea0ebfaa4e79871893938b5bb0c7864278cc5fafc37bd3312ccb72e95ed745188320ee227693c04415d4751249bd6ea56096532cc317b04da11c52ca0b

Download Submit
\Users\Admin\AppData\Roaming\Windows\winlogin.exe

Filesize
165KB

MD5
83c0b99427c026aad36b0d8204377702

SHA1
76d17eff5dbe5d9129a35c70c31aef5c458827f3

SHA256
3c96327c26c0f0d91e048d75c3b7c91f0caddf47d7eb8ab4ec75409deaa70bdc

SHA512
c8ceb8ea0ebfaa4e79871893938b5bb0c7864278cc5fafc37bd3312ccb72e95ed745188320ee227693c04415d4751249bd6ea56096532cc317b04da11c52ca0b

Download Submit
memory/1260-61-0x0000000000000000-mapping.dmp

Download
memory/1260-63-0x0000000000240000-0x0000000000260000-memory.dmp

Filesize
128KB

Download
memory/1260-64-0x0000000075DA1000-0x0000000075DA3000-memory.dmp

Filesize
8KB

Download
memory/1280-58-0x0000000000000000-mapping.dmp

Download
memory/1312-57-0x0000000000000000-mapping.dmp

Download
memory/1484-55-0x0000000000000000-mapping.dmp

Download
memory/1736-54-0x00000000002B0000-0x00000000002D0000-memory.dmp

Filesize
128KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads