a1397e04e67079d8efba3da04abed1cefb81a819f7c0d5bc9083f10605301e8e

Analysis

max time kernel
151s
max time network
96s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
06/11/2022, 16:36

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General

Target

Trojan-Ransom.Win32.Blocker.exe
Size

191KB
MD5

dca30ed8ed2e1b0cd9e33d5a5f069d41
SHA1

aed616497015c68305b45d5914125456266d8a56
SHA256

a1397e04e67079d8efba3da04abed1cefb81a819f7c0d5bc9083f10605301e8e
SHA512

6a7b6f3480bdc694d764cda9dfae1763490dbd309af508df582e2a9860eafa6b932681342ee7a7537204265cceaa0ea69188afc8d7559035a2c2f7f92555e1e9
SSDEEP

3072:tJ1eo3Qj+8NhvDtQiJNXs3vXCT8uzl8PcRZzFPk2I111KYiI1Uk1g:kg8Nds3vSTHlJHMziy1

Score

8^/10

persistence

Malware Config

Signatures

Adds policy 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\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\11240 = "C:\\PROGRA~3\\LOCALS~1\\Temp\\mspocuiv.scr"	svchost.exe

Executes dropped EXE 3 IoCs

pid	Process
676	fixmapi.exe
240	wdmaud.exe
2012	fixmapi.exe

Loads dropped DLL 2 IoCs

pid	Process
1544	Trojan-Ransom.Win32.Blocker.exe
676	fixmapi.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce	fixmapi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\FIXMAPI 1.0 MAPI Repair Tool = "C:\\Users\\Admin\\Music\\fixmapi.exe"	fixmapi.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce	fixmapi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\FIXMAPI 1.0 MAPI Repair Tool = "C:\\Users\\Admin\\Music\\fixmapi.exe"	fixmapi.exe

Maps connected drives based on registry 3 TTPs 4 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\disk\enum	AppLaunch.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	AppLaunch.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\disk\enum	AppLaunch.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	AppLaunch.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1544 set thread context of 896	1544	Trojan-Ransom.Win32.Blocker.exe	26
PID 240 set thread context of 1772	240	wdmaud.exe	31

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\PROGRA~3\LOCALS~1\Temp\mspocuiv.scr	svchost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\MICROS~1.NET\FRAMEW~1\V20~1.507\AppLaunch.exe	svchost.exe
File opened for modification	C:\Windows\MICROS~1.NET\FRAMEW~1\V20~1.507\AppLaunch.exe	svchost.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1544	Trojan-Ransom.Win32.Blocker.exe
896	AppLaunch.exe
1544	Trojan-Ransom.Win32.Blocker.exe
1544	Trojan-Ransom.Win32.Blocker.exe
1544	Trojan-Ransom.Win32.Blocker.exe
1544	Trojan-Ransom.Win32.Blocker.exe
1544	Trojan-Ransom.Win32.Blocker.exe
1544	Trojan-Ransom.Win32.Blocker.exe
1544	Trojan-Ransom.Win32.Blocker.exe
1544	Trojan-Ransom.Win32.Blocker.exe
1544	Trojan-Ransom.Win32.Blocker.exe
1544	Trojan-Ransom.Win32.Blocker.exe
1544	Trojan-Ransom.Win32.Blocker.exe
1544	Trojan-Ransom.Win32.Blocker.exe
676	fixmapi.exe
1544	Trojan-Ransom.Win32.Blocker.exe
1544	Trojan-Ransom.Win32.Blocker.exe
676	fixmapi.exe
1544	Trojan-Ransom.Win32.Blocker.exe
676	fixmapi.exe
1544	Trojan-Ransom.Win32.Blocker.exe
676	fixmapi.exe
1544	Trojan-Ransom.Win32.Blocker.exe
676	fixmapi.exe
1544	Trojan-Ransom.Win32.Blocker.exe
676	fixmapi.exe
1544	Trojan-Ransom.Win32.Blocker.exe
676	fixmapi.exe
1544	Trojan-Ransom.Win32.Blocker.exe
676	fixmapi.exe
1544	Trojan-Ransom.Win32.Blocker.exe
676	fixmapi.exe
1544	Trojan-Ransom.Win32.Blocker.exe
676	fixmapi.exe
1544	Trojan-Ransom.Win32.Blocker.exe
676	fixmapi.exe
1544	Trojan-Ransom.Win32.Blocker.exe
676	fixmapi.exe
1544	Trojan-Ransom.Win32.Blocker.exe
676	fixmapi.exe
1544	Trojan-Ransom.Win32.Blocker.exe
676	fixmapi.exe
1544	Trojan-Ransom.Win32.Blocker.exe
676	fixmapi.exe
1544	Trojan-Ransom.Win32.Blocker.exe
676	fixmapi.exe
1544	Trojan-Ransom.Win32.Blocker.exe
676	fixmapi.exe
1544	Trojan-Ransom.Win32.Blocker.exe
676	fixmapi.exe
1544	Trojan-Ransom.Win32.Blocker.exe
676	fixmapi.exe
1544	Trojan-Ransom.Win32.Blocker.exe
676	fixmapi.exe
1544	Trojan-Ransom.Win32.Blocker.exe
676	fixmapi.exe
1544	Trojan-Ransom.Win32.Blocker.exe
676	fixmapi.exe
1544	Trojan-Ransom.Win32.Blocker.exe
676	fixmapi.exe
1544	Trojan-Ransom.Win32.Blocker.exe
676	fixmapi.exe
1544	Trojan-Ransom.Win32.Blocker.exe
676	fixmapi.exe

Suspicious behavior: MapViewOfSection 4 IoCs

pid	Process
896	AppLaunch.exe
896	AppLaunch.exe
1772	AppLaunch.exe
1772	AppLaunch.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1544	Trojan-Ransom.Win32.Blocker.exe
Token: SeDebugPrivilege	676	fixmapi.exe
Token: SeDebugPrivilege	240	wdmaud.exe
Token: SeDebugPrivilege	2012	fixmapi.exe

Suspicious use of WriteProcessMemory 46 IoCs

description	pid	Process	procid_target
PID 1544 wrote to memory of 896	1544	Trojan-Ransom.Win32.Blocker.exe	26
PID 1544 wrote to memory of 896	1544	Trojan-Ransom.Win32.Blocker.exe	26
PID 1544 wrote to memory of 896	1544	Trojan-Ransom.Win32.Blocker.exe	26
PID 1544 wrote to memory of 896	1544	Trojan-Ransom.Win32.Blocker.exe	26
PID 1544 wrote to memory of 896	1544	Trojan-Ransom.Win32.Blocker.exe	26
PID 1544 wrote to memory of 896	1544	Trojan-Ransom.Win32.Blocker.exe	26
PID 1544 wrote to memory of 896	1544	Trojan-Ransom.Win32.Blocker.exe	26
PID 1544 wrote to memory of 896	1544	Trojan-Ransom.Win32.Blocker.exe	26
PID 1544 wrote to memory of 896	1544	Trojan-Ransom.Win32.Blocker.exe	26
PID 1544 wrote to memory of 896	1544	Trojan-Ransom.Win32.Blocker.exe	26
PID 1544 wrote to memory of 676	1544	Trojan-Ransom.Win32.Blocker.exe	28
PID 1544 wrote to memory of 676	1544	Trojan-Ransom.Win32.Blocker.exe	28
PID 1544 wrote to memory of 676	1544	Trojan-Ransom.Win32.Blocker.exe	28
PID 1544 wrote to memory of 676	1544	Trojan-Ransom.Win32.Blocker.exe	28
PID 896 wrote to memory of 592	896	AppLaunch.exe	27
PID 896 wrote to memory of 592	896	AppLaunch.exe	27
PID 896 wrote to memory of 592	896	AppLaunch.exe	27
PID 896 wrote to memory of 592	896	AppLaunch.exe	27
PID 896 wrote to memory of 592	896	AppLaunch.exe	27
PID 896 wrote to memory of 592	896	AppLaunch.exe	27
PID 896 wrote to memory of 592	896	AppLaunch.exe	27
PID 676 wrote to memory of 240	676	fixmapi.exe	29
PID 676 wrote to memory of 240	676	fixmapi.exe	29
PID 676 wrote to memory of 240	676	fixmapi.exe	29
PID 676 wrote to memory of 240	676	fixmapi.exe	29
PID 1544 wrote to memory of 2012	1544	Trojan-Ransom.Win32.Blocker.exe	30
PID 1544 wrote to memory of 2012	1544	Trojan-Ransom.Win32.Blocker.exe	30
PID 1544 wrote to memory of 2012	1544	Trojan-Ransom.Win32.Blocker.exe	30
PID 1544 wrote to memory of 2012	1544	Trojan-Ransom.Win32.Blocker.exe	30
PID 240 wrote to memory of 1772	240	wdmaud.exe	31
PID 240 wrote to memory of 1772	240	wdmaud.exe	31
PID 240 wrote to memory of 1772	240	wdmaud.exe	31
PID 240 wrote to memory of 1772	240	wdmaud.exe	31
PID 240 wrote to memory of 1772	240	wdmaud.exe	31
PID 240 wrote to memory of 1772	240	wdmaud.exe	31
PID 240 wrote to memory of 1772	240	wdmaud.exe	31
PID 240 wrote to memory of 1772	240	wdmaud.exe	31
PID 240 wrote to memory of 1772	240	wdmaud.exe	31
PID 240 wrote to memory of 1772	240	wdmaud.exe	31
PID 1772 wrote to memory of 344	1772	AppLaunch.exe	32
PID 1772 wrote to memory of 344	1772	AppLaunch.exe	32
PID 1772 wrote to memory of 344	1772	AppLaunch.exe	32
PID 1772 wrote to memory of 344	1772	AppLaunch.exe	32
PID 1772 wrote to memory of 344	1772	AppLaunch.exe	32
PID 1772 wrote to memory of 344	1772	AppLaunch.exe	32
PID 1772 wrote to memory of 344	1772	AppLaunch.exe	32

C:\Users\Admin\AppData\Local\Temp\Trojan-Ransom.Win32.Blocker.exe
"C:\Users\Admin\AppData\Local\Temp\Trojan-Ransom.Win32.Blocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1544
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\AppLaunch.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\AppLaunch.exe"
  2⤵
  - Maps connected drives based on registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:896
- - C:\Windows\syswow64\svchost.exe
    C:\Windows\syswow64\svchost.exe
    3⤵
    - Adds policy Run key to start application
    - Drops file in Program Files directory
    - Drops file in Windows directory
    PID:592
- C:\Users\Admin\Music\fixmapi.exe
  "C:\Users\Admin\Music\fixmapi.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:676
- - C:\Users\Admin\Music\wdmaud.exe
    "C:\Users\Admin\Music\wdmaud.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:240
  - - C:\Windows\Microsoft.NET\Framework\v2.0.50727\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\AppLaunch.exe"
      4⤵
      Maps connected drives based on registry
      Suspicious behavior: MapViewOfSection
      Suspicious use of WriteProcessMemory
      PID:1772
    - - C:\Windows\syswow64\svchost.exe
        
        C:\Windows\syswow64\svchost.exe
        5⤵
        Drops file in Windows directory
        
        PID:344
- C:\Users\Admin\Music\fixmapi.exe
  "C:\Users\Admin\Music\fixmapi.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  PID:2012

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

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\Music\fixmapi.exe

Filesize
16KB

MD5
4ec62b0699655eb20fd214eec15c51ab

SHA1
f6cfe1fa8e24075108a366b4221363a237d49612

SHA256
188458191d34e71ba6c626cab667ea82c6e2bad7f4c42303be19b97aaf7e84d5

SHA512
041191306ac832856b39731cd0f3730b6b8a16eb79d389b2886232371d304e58f8a6a07aee73ad9ad35f079f3838fe3507ad1f7355ca034a504edcffc29fb329

Download Submit
C:\Users\Admin\Music\fixmapi.exe

Filesize
16KB

MD5
4ec62b0699655eb20fd214eec15c51ab

SHA1
f6cfe1fa8e24075108a366b4221363a237d49612

SHA256
188458191d34e71ba6c626cab667ea82c6e2bad7f4c42303be19b97aaf7e84d5

SHA512
041191306ac832856b39731cd0f3730b6b8a16eb79d389b2886232371d304e58f8a6a07aee73ad9ad35f079f3838fe3507ad1f7355ca034a504edcffc29fb329

Download Submit
C:\Users\Admin\Music\fixmapi.exe

Filesize
16KB

MD5
4ec62b0699655eb20fd214eec15c51ab

SHA1
f6cfe1fa8e24075108a366b4221363a237d49612

SHA256
188458191d34e71ba6c626cab667ea82c6e2bad7f4c42303be19b97aaf7e84d5

SHA512
041191306ac832856b39731cd0f3730b6b8a16eb79d389b2886232371d304e58f8a6a07aee73ad9ad35f079f3838fe3507ad1f7355ca034a504edcffc29fb329

Download Submit
C:\Users\Admin\Music\wdmaud.exe

Filesize
191KB

MD5
dca30ed8ed2e1b0cd9e33d5a5f069d41

SHA1
aed616497015c68305b45d5914125456266d8a56

SHA256
a1397e04e67079d8efba3da04abed1cefb81a819f7c0d5bc9083f10605301e8e

SHA512
6a7b6f3480bdc694d764cda9dfae1763490dbd309af508df582e2a9860eafa6b932681342ee7a7537204265cceaa0ea69188afc8d7559035a2c2f7f92555e1e9

Download Submit
C:\Users\Admin\Music\wdmaud.exe

Filesize
191KB

MD5
dca30ed8ed2e1b0cd9e33d5a5f069d41

SHA1
aed616497015c68305b45d5914125456266d8a56

SHA256
a1397e04e67079d8efba3da04abed1cefb81a819f7c0d5bc9083f10605301e8e

SHA512
6a7b6f3480bdc694d764cda9dfae1763490dbd309af508df582e2a9860eafa6b932681342ee7a7537204265cceaa0ea69188afc8d7559035a2c2f7f92555e1e9

Download Submit
\Users\Admin\Music\fixmapi.exe

Filesize
16KB

MD5
4ec62b0699655eb20fd214eec15c51ab

SHA1
f6cfe1fa8e24075108a366b4221363a237d49612

SHA256
188458191d34e71ba6c626cab667ea82c6e2bad7f4c42303be19b97aaf7e84d5

SHA512
041191306ac832856b39731cd0f3730b6b8a16eb79d389b2886232371d304e58f8a6a07aee73ad9ad35f079f3838fe3507ad1f7355ca034a504edcffc29fb329

Download Submit
\Users\Admin\Music\wdmaud.exe

Filesize
191KB

MD5
dca30ed8ed2e1b0cd9e33d5a5f069d41

SHA1
aed616497015c68305b45d5914125456266d8a56

SHA256
a1397e04e67079d8efba3da04abed1cefb81a819f7c0d5bc9083f10605301e8e

SHA512
6a7b6f3480bdc694d764cda9dfae1763490dbd309af508df582e2a9860eafa6b932681342ee7a7537204265cceaa0ea69188afc8d7559035a2c2f7f92555e1e9

Download Submit
memory/240-78-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/240-81-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/344-97-0x0000000000170000-0x0000000000175000-memory.dmp

Filesize
20KB

Download
memory/344-96-0x0000000000170000-0x0000000000175000-memory.dmp

Filesize
20KB

Download
memory/344-95-0x00000000005E0000-0x00000000005E8000-memory.dmp

Filesize
32KB

Download
memory/592-70-0x00000000005E0000-0x00000000005E8000-memory.dmp

Filesize
32KB

Download
memory/592-72-0x0000000000170000-0x0000000000175000-memory.dmp

Filesize
20KB

Download
memory/592-80-0x0000000000170000-0x0000000000175000-memory.dmp

Filesize
20KB

Download
memory/676-79-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/676-82-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/676-71-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/896-58-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/896-57-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/896-60-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/1544-54-0x0000000075681000-0x0000000075683000-memory.dmp

Filesize
8KB

Download
memory/1544-55-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/1544-56-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/2012-86-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/2012-98-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download