59039905536ca8187e52bf5af1513f6ab2e9d81d6a4cbd79cacbbf66df8b8ec4

General

Target

59039905536ca8187e52bf5af1513f6ab2e9d81d6a4cbd79cacbbf66df8b8ec4.exe
Size

713KB
MD5

54348d676b3cab51ce480e17352d400b
SHA1

517b4bb2c0c1e0b27c6b4d44d0f498f41413a0b1
SHA256

59039905536ca8187e52bf5af1513f6ab2e9d81d6a4cbd79cacbbf66df8b8ec4
SHA512

c3a47105a1e8cc5d6ebf77586a85b27573196e4365166cc58f8e4836085fa7d691868eac6895c0abfaac9edcf44f505a01fe0d0705f3bfe5fe436b9339a1b073
SSDEEP

12288:TMz2iNP4pXB2KyVzKuFlHk/mzlMIXPu+vTUjxEdyD+L:k1WpXByPk+zaIfuKH

Score

10^/10

evasion persistence trojan

Malware Config

Signatures

UAC bypass 3 TTPs 1 IoCs

evasion trojan

Bypass User Account Control

T1088

Disabling Security Tools

T1089

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	reg.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	59039905536ca8187e52bf5af1513f6ab2e9d81d6a4cbd79cacbbf66df8b8ec4.exe

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\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run\	59039905536ca8187e52bf5af1513f6ab2e9d81d6a4cbd79cacbbf66df8b8ec4.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Security Health Start = "\"C:\\Windows\\Windows Secure Start\\Microsoft Security Start.exe\""	59039905536ca8187e52bf5af1513f6ab2e9d81d6a4cbd79cacbbf66df8b8ec4.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4516 set thread context of 3080	4516	59039905536ca8187e52bf5af1513f6ab2e9d81d6a4cbd79cacbbf66df8b8ec4.exe	88

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\Windows Secure Start\Microsoft Security Start.exe	59039905536ca8187e52bf5af1513f6ab2e9d81d6a4cbd79cacbbf66df8b8ec4.exe
File opened for modification	C:\Windows\Windows Secure Start\Microsoft Security Start.exe	59039905536ca8187e52bf5af1513f6ab2e9d81d6a4cbd79cacbbf66df8b8ec4.exe
File opened for modification	C:\Windows\Windows Secure Start	59039905536ca8187e52bf5af1513f6ab2e9d81d6a4cbd79cacbbf66df8b8ec4.exe

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

System Information Discovery
T1082

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
3516	reg.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2108	PING.EXE

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4516 wrote to memory of 3080	4516	59039905536ca8187e52bf5af1513f6ab2e9d81d6a4cbd79cacbbf66df8b8ec4.exe	88
PID 4516 wrote to memory of 3080	4516	59039905536ca8187e52bf5af1513f6ab2e9d81d6a4cbd79cacbbf66df8b8ec4.exe	88
PID 4516 wrote to memory of 3080	4516	59039905536ca8187e52bf5af1513f6ab2e9d81d6a4cbd79cacbbf66df8b8ec4.exe	88
PID 4516 wrote to memory of 3080	4516	59039905536ca8187e52bf5af1513f6ab2e9d81d6a4cbd79cacbbf66df8b8ec4.exe	88
PID 4516 wrote to memory of 3080	4516	59039905536ca8187e52bf5af1513f6ab2e9d81d6a4cbd79cacbbf66df8b8ec4.exe	88
PID 4516 wrote to memory of 3080	4516	59039905536ca8187e52bf5af1513f6ab2e9d81d6a4cbd79cacbbf66df8b8ec4.exe	88
PID 4516 wrote to memory of 3080	4516	59039905536ca8187e52bf5af1513f6ab2e9d81d6a4cbd79cacbbf66df8b8ec4.exe	88
PID 4516 wrote to memory of 3080	4516	59039905536ca8187e52bf5af1513f6ab2e9d81d6a4cbd79cacbbf66df8b8ec4.exe	88
PID 4516 wrote to memory of 3080	4516	59039905536ca8187e52bf5af1513f6ab2e9d81d6a4cbd79cacbbf66df8b8ec4.exe	88
PID 3080 wrote to memory of 3620	3080	59039905536ca8187e52bf5af1513f6ab2e9d81d6a4cbd79cacbbf66df8b8ec4.exe	91
PID 3080 wrote to memory of 3620	3080	59039905536ca8187e52bf5af1513f6ab2e9d81d6a4cbd79cacbbf66df8b8ec4.exe	91
PID 3080 wrote to memory of 3620	3080	59039905536ca8187e52bf5af1513f6ab2e9d81d6a4cbd79cacbbf66df8b8ec4.exe	91
PID 3620 wrote to memory of 3516	3620	cmd.exe	90
PID 3620 wrote to memory of 3516	3620	cmd.exe	90
PID 3620 wrote to memory of 3516	3620	cmd.exe	90
PID 3080 wrote to memory of 3476	3080	59039905536ca8187e52bf5af1513f6ab2e9d81d6a4cbd79cacbbf66df8b8ec4.exe	94
PID 3080 wrote to memory of 3476	3080	59039905536ca8187e52bf5af1513f6ab2e9d81d6a4cbd79cacbbf66df8b8ec4.exe	94
PID 3080 wrote to memory of 3476	3080	59039905536ca8187e52bf5af1513f6ab2e9d81d6a4cbd79cacbbf66df8b8ec4.exe	94

C:\Users\Admin\AppData\Local\Temp\59039905536ca8187e52bf5af1513f6ab2e9d81d6a4cbd79cacbbf66df8b8ec4.exe
"C:\Users\Admin\AppData\Local\Temp\59039905536ca8187e52bf5af1513f6ab2e9d81d6a4cbd79cacbbf66df8b8ec4.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4516
- C:\Users\Admin\AppData\Local\Temp\59039905536ca8187e52bf5af1513f6ab2e9d81d6a4cbd79cacbbf66df8b8ec4.exe
  "C:\Users\Admin\AppData\Local\Temp\59039905536ca8187e52bf5af1513f6ab2e9d81d6a4cbd79cacbbf66df8b8ec4.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - Drops file in Windows directory
  - Suspicious use of WriteProcessMemory
  PID:3080
- - C:\Windows\SysWOW64\cmd.exe
    /k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3620
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\install.bat" "
    3⤵
    PID:3476
  - - C:\Windows\Windows Secure Start\Microsoft Security Start.exe
      "C:\Windows\Windows Secure Start\Microsoft Security Start.exe"
      4⤵
      PID:4700

C:\Windows\SysWOW64\reg.exe
C:\Windows\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
1⤵
- UAC bypass
- Modifies registry key
PID:3516

C:\Windows\SysWOW64\PING.EXE
PING 127.0.0.1 -n 2
1⤵
- Runs ping.exe
PID:2108

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Bypass User Account Control

1

T1088

Defense Evasion

Bypass User Account Control

1

T1088

Disabling Security Tools

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\install.bat

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C:\Windows\Windows Secure Start\Microsoft Security Start.exe

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C:\Windows\Windows Secure Start\Microsoft Security Start.exe

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memory/2108-147-0x0000000000000000-mapping.dmp

Download
memory/3080-138-0x0000000000000000-mapping.dmp

Download
memory/3080-145-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3080-139-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3080-141-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3476-144-0x0000000000000000-mapping.dmp

Download
memory/3516-143-0x0000000000000000-mapping.dmp

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memory/3620-142-0x0000000000000000-mapping.dmp

Download
memory/4516-132-0x0000000000340000-0x00000000003F8000-memory.dmp

Filesize
736KB

Download
memory/4516-137-0x0000000007940000-0x00000000079A6000-memory.dmp

Filesize
408KB

Download
memory/4516-136-0x00000000078A0000-0x000000000793C000-memory.dmp

Filesize
624KB

Download
memory/4516-135-0x0000000004D80000-0x0000000004D8A000-memory.dmp

Filesize
40KB

Download
memory/4516-134-0x0000000004DF0000-0x0000000004E82000-memory.dmp

Filesize
584KB

Download
memory/4516-133-0x0000000005490000-0x0000000005A34000-memory.dmp

Filesize
5.6MB

Download
memory/4700-148-0x0000000000000000-mapping.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads