71f8af6c3a6df000fe223e15cb71c0bf8df6662d8317c38472c5ed07a3fa5c85

Analysis

max time kernel
43s
max time network
48s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
01/10/2022, 20:17

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General

Target

71f8af6c3a6df000fe223e15cb71c0bf8df6662d8317c38472c5ed07a3fa5c85.exe
Size

1.7MB
MD5

0aa0a08d376c9647fc946a6ca5081200
SHA1

139214283676ca74e9d9f0ddd24bee36a951ecc5
SHA256

71f8af6c3a6df000fe223e15cb71c0bf8df6662d8317c38472c5ed07a3fa5c85
SHA512

4f82f0512e3e1d9ddc932de278ca19b9b8947537051527fa4325759188d767a1ec34ee498f9e828eff2010f892ddae1f240808ef2b63bd94ae388adbd79839f3
SSDEEP

24576:OXdVtTj2i64T+jdxQCfgOFD3WSwd2QtBBw6xxhVxQtmibjOhZaiRu/4oMaop0UNA:mbTChxKCnFnQXBbrtgb/iQvu0UHOp

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 4 IoCs

pid	Process
1756	WdExt.exe
1372	launch.exe
1944	wtmps.exe
1964	mscaps.exe

Deletes itself 1 IoCs

pid	Process
1376	cmd.exe

Loads dropped DLL 8 IoCs

pid	Process
1720	71f8af6c3a6df000fe223e15cb71c0bf8df6662d8317c38472c5ed07a3fa5c85.exe
1744	cmd.exe
1744	cmd.exe
1756	WdExt.exe
1784	cmd.exe
1784	cmd.exe
600	cmd.exe
600	cmd.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Defender Extension = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Defender\\launch.exe\""	launch.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\mscaps.exe	wtmps.exe
File created	C:\Windows\SysWOW64\mscaps.exe	wtmps.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 8 IoCs

pid	Process
1720	71f8af6c3a6df000fe223e15cb71c0bf8df6662d8317c38472c5ed07a3fa5c85.exe
1756	WdExt.exe
1372	launch.exe
1372	launch.exe
1372	launch.exe
1372	launch.exe
1372	launch.exe
1372	launch.exe

Suspicious use of WriteProcessMemory 44 IoCs

description	pid	Process	procid_target
PID 1720 wrote to memory of 1744	1720	71f8af6c3a6df000fe223e15cb71c0bf8df6662d8317c38472c5ed07a3fa5c85.exe	27
PID 1720 wrote to memory of 1744	1720	71f8af6c3a6df000fe223e15cb71c0bf8df6662d8317c38472c5ed07a3fa5c85.exe	27
PID 1720 wrote to memory of 1744	1720	71f8af6c3a6df000fe223e15cb71c0bf8df6662d8317c38472c5ed07a3fa5c85.exe	27
PID 1720 wrote to memory of 1744	1720	71f8af6c3a6df000fe223e15cb71c0bf8df6662d8317c38472c5ed07a3fa5c85.exe	27
PID 1720 wrote to memory of 1376	1720	71f8af6c3a6df000fe223e15cb71c0bf8df6662d8317c38472c5ed07a3fa5c85.exe	29
PID 1720 wrote to memory of 1376	1720	71f8af6c3a6df000fe223e15cb71c0bf8df6662d8317c38472c5ed07a3fa5c85.exe	29
PID 1720 wrote to memory of 1376	1720	71f8af6c3a6df000fe223e15cb71c0bf8df6662d8317c38472c5ed07a3fa5c85.exe	29
PID 1720 wrote to memory of 1376	1720	71f8af6c3a6df000fe223e15cb71c0bf8df6662d8317c38472c5ed07a3fa5c85.exe	29
PID 1744 wrote to memory of 1756	1744	cmd.exe	31
PID 1744 wrote to memory of 1756	1744	cmd.exe	31
PID 1744 wrote to memory of 1756	1744	cmd.exe	31
PID 1744 wrote to memory of 1756	1744	cmd.exe	31
PID 1756 wrote to memory of 1784	1756	WdExt.exe	32
PID 1756 wrote to memory of 1784	1756	WdExt.exe	32
PID 1756 wrote to memory of 1784	1756	WdExt.exe	32
PID 1756 wrote to memory of 1784	1756	WdExt.exe	32
PID 1784 wrote to memory of 1372	1784	cmd.exe	34
PID 1784 wrote to memory of 1372	1784	cmd.exe	34
PID 1784 wrote to memory of 1372	1784	cmd.exe	34
PID 1784 wrote to memory of 1372	1784	cmd.exe	34
PID 1784 wrote to memory of 1372	1784	cmd.exe	34
PID 1784 wrote to memory of 1372	1784	cmd.exe	34
PID 1784 wrote to memory of 1372	1784	cmd.exe	34
PID 1372 wrote to memory of 600	1372	launch.exe	35
PID 1372 wrote to memory of 600	1372	launch.exe	35
PID 1372 wrote to memory of 600	1372	launch.exe	35
PID 1372 wrote to memory of 600	1372	launch.exe	35
PID 1372 wrote to memory of 600	1372	launch.exe	35
PID 1372 wrote to memory of 600	1372	launch.exe	35
PID 1372 wrote to memory of 600	1372	launch.exe	35
PID 600 wrote to memory of 1944	600	cmd.exe	37
PID 600 wrote to memory of 1944	600	cmd.exe	37
PID 600 wrote to memory of 1944	600	cmd.exe	37
PID 600 wrote to memory of 1944	600	cmd.exe	37
PID 600 wrote to memory of 1944	600	cmd.exe	37
PID 600 wrote to memory of 1944	600	cmd.exe	37
PID 600 wrote to memory of 1944	600	cmd.exe	37
PID 1944 wrote to memory of 1964	1944	wtmps.exe	38
PID 1944 wrote to memory of 1964	1944	wtmps.exe	38
PID 1944 wrote to memory of 1964	1944	wtmps.exe	38
PID 1944 wrote to memory of 1964	1944	wtmps.exe	38
PID 1944 wrote to memory of 1964	1944	wtmps.exe	38
PID 1944 wrote to memory of 1964	1944	wtmps.exe	38
PID 1944 wrote to memory of 1964	1944	wtmps.exe	38

C:\Users\Admin\AppData\Local\Temp\71f8af6c3a6df000fe223e15cb71c0bf8df6662d8317c38472c5ed07a3fa5c85.exe
"C:\Users\Admin\AppData\Local\Temp\71f8af6c3a6df000fe223e15cb71c0bf8df6662d8317c38472c5ed07a3fa5c85.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1720
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Roaming\Temp\Admin0.bat" "
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1744
- - C:\Users\Admin\AppData\Roaming\Microsoft\Messenger\Extension\WdExt.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Messenger\Extension\WdExt.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:1756
  - - C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Roaming\Temp\Admin1.bat" "
      4⤵
      Loads dropped DLL
      Suspicious use of WriteProcessMemory
      PID:1784
    - - C:\Users\Admin\AppData\Roaming\Microsoft\Defender\launch.exe
        
        "C:\Users\Admin\AppData\Roaming\Microsoft\Defender\launch.exe" /i 1756
        5⤵
        Executes dropped EXE
        Adds Run key to start application
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of WriteProcessMemory
        
        PID:1372
      - C:\Windows\SysWOW64\cmd.exe
        
        cmd /c ""C:\Users\Admin\AppData\Roaming\Temp\Admin2.bat" "
        6⤵
        Loads dropped DLL
        Suspicious use of WriteProcessMemory
        
        PID:600
        
        C:\Users\Admin\AppData\Local\Temp\wtmps.exe
        
        "C:\Users\Admin\AppData\Local\Temp\wtmps.exe"
        7⤵
        Executes dropped EXE
        Drops file in System32 directory
        Suspicious use of WriteProcessMemory
        
        PID:1944
        
        C:\Windows\SysWOW64\mscaps.exe
        
        "C:\Windows\system32\mscaps.exe" /C:\Users\Admin\AppData\Local\Temp\wtmps.exe
        8⤵
        Executes dropped EXE
        
        PID:1964
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Roaming\Temp\Admin1.bat" "
  2⤵
  - Deletes itself
  PID:1376

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\wtmps.exe

Filesize
276KB

MD5
75c1467042b38332d1ea0298f29fb592

SHA1
f92ea770c2ddb04cf0d20914578e4c482328f0f8

SHA256
3b20c853d4ca23240cd338b8cab16f1027c540ddfe9c4ffdca1624d2f923b373

SHA512
5c47c59ad222e2597ccdf2c100853c48f022e933f44c279154346eacf9e7e6f54214ada541d43a10424035f160b56131aab206c11512a9fd6ea614fbd3160aa0

Download Submit
C:\Users\Admin\AppData\Local\Temp\wtmps.exe

Filesize
276KB

MD5
75c1467042b38332d1ea0298f29fb592

SHA1
f92ea770c2ddb04cf0d20914578e4c482328f0f8

SHA256
3b20c853d4ca23240cd338b8cab16f1027c540ddfe9c4ffdca1624d2f923b373

SHA512
5c47c59ad222e2597ccdf2c100853c48f022e933f44c279154346eacf9e7e6f54214ada541d43a10424035f160b56131aab206c11512a9fd6ea614fbd3160aa0

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Defender\launch.exe

Filesize
172KB

MD5
daac1781c9d22f5743ade0cb41feaebf

SHA1
e2549eeeea42a6892b89d354498fcaa8ffd9cac4

SHA256
6a7093440420306cf7de53421a67af8a1094771e0aab9535acbd748d08ed766c

SHA512
190a7d5291e20002f996edf1e04456bfdff8b7b2f4ef113178bd42a9e5fd89fe6d410ae2c505de0358c4f53f9654ac1caaa8634665afa6d9691640dd4ee86160

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Defender\launch.exe

Filesize
172KB

MD5
daac1781c9d22f5743ade0cb41feaebf

SHA1
e2549eeeea42a6892b89d354498fcaa8ffd9cac4

SHA256
6a7093440420306cf7de53421a67af8a1094771e0aab9535acbd748d08ed766c

SHA512
190a7d5291e20002f996edf1e04456bfdff8b7b2f4ef113178bd42a9e5fd89fe6d410ae2c505de0358c4f53f9654ac1caaa8634665afa6d9691640dd4ee86160

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Messenger\Extension\WdExt.exe

Filesize
1.7MB

MD5
5f3e167a973b6df7e5c7f68a8d82efce

SHA1
fe825219b7cebc57d57cf5de79592e6080b9bcc2

SHA256
0f5d70a4d489e1c1ceddcaba98e5fcb85584dc41ac01d083d701e1547fab343c

SHA512
a9107fbf82ae88b60aa389401a4ff39a0651ac7432024461e8bec5b920a8a2904a949eccfd2ac4b6fce06f9cc1044c069759b4daf3728686eadbeb0fb5d38ce4

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Messenger\Extension\WdExt.exe

Filesize
1.7MB

MD5
5f3e167a973b6df7e5c7f68a8d82efce

SHA1
fe825219b7cebc57d57cf5de79592e6080b9bcc2

SHA256
0f5d70a4d489e1c1ceddcaba98e5fcb85584dc41ac01d083d701e1547fab343c

SHA512
a9107fbf82ae88b60aa389401a4ff39a0651ac7432024461e8bec5b920a8a2904a949eccfd2ac4b6fce06f9cc1044c069759b4daf3728686eadbeb0fb5d38ce4

Download Submit
C:\Users\Admin\AppData\Roaming\Temp\Admin0.bat

Filesize
129B

MD5
d1073c9b34d1bbd570928734aacff6a5

SHA1
78714e24e88d50e0da8da9d303bec65b2ee6d903

SHA256
b3c704b1a728004fc5e25899d72930a7466d7628dd6ddd795b3000897dfa4020

SHA512
4f2b9330e30fcc55245dc5d12311e105b2b2b9d607fbfc4a203c69a740006f0af58d6a01e2da284575a897528da71a2e61a7321034755b78feb646c8dd12347f

Download Submit
C:\Users\Admin\AppData\Roaming\Temp\Admin1.bat

Filesize
302B

MD5
053b39ddb836938e0c7077b1eb33bfab

SHA1
f4749a9a9a27abb59ec40d52c49fc5351d750a06

SHA256
4a1e6ce0047dbb1443cf3cd58c9fcd0170f6ab2b4096cb0aebc8d69e62d1b7ab

SHA512
cd0aa9d04d730da2960cd7efb608347c4872873b9f62cd7bf4bf3a3494cad9df0aa4cb9441615f4a38ef11f350f325e4514f02dec4af347d7d63dce8094b8ff4

Download Submit
C:\Users\Admin\AppData\Roaming\Temp\Admin1.bat

Filesize
126B

MD5
262aaaf6cd7f151e1a8c8940e6b29cc3

SHA1
043c956e5c2fbdb79ff4852e173149eccd97d5ba

SHA256
8b7ee785c2e9bccbea220e84187de001fa2746e43d9e4223a68455fec0f38962

SHA512
ff3b1e0d51b785716a554915efdfaa629c6bb9e75a9719f5cef5ac63a23ffdc26cfc08cf9b6bd1afd999bacedcddc4d561fd6ef479ae8d9698193851035a92de

Download Submit
C:\Users\Admin\AppData\Roaming\Temp\Admin2.bat

Filesize
102B

MD5
3ca08f080a7a28416774d80552d4aa08

SHA1
0b5f0ba641204b27adac4140fd45dce4390dbf24

SHA256
4e7d460b8dc9f2c01b4c5a16fb956aced10127bc940e8039a80c6455901ea1f0

SHA512
0c64aa462ff70473ef763ec392296fe0ea59b5340c26978531a416732bc3845adf9ca7b673cb7b4ba40cc45674351206096995c43600fccbbbe64e51b6019f01

Download Submit
C:\Windows\SysWOW64\mscaps.exe

Filesize
200KB

MD5
78d3c8705f8baf7d34e6a6737d1cfa18

SHA1
9f09e248a29311dbeefae9d85937b13da042a010

SHA256
2c4c9ec8e9291ba5c73f641af2e0c3e1bbd257ac40d9fb9d3faab7cebc978905

SHA512
9a3c3175276da58f1bc8d1138e63238c8d8ccfbfa1a8a1338e88525eca47f8d745158bb34396b7c3f25e4296be5f45a71781da33ad0bbdf7ad88a9c305b85609

Download Submit
\Users\Admin\AppData\Local\Temp\wtmps.exe

Filesize
276KB

MD5
75c1467042b38332d1ea0298f29fb592

SHA1
f92ea770c2ddb04cf0d20914578e4c482328f0f8

SHA256
3b20c853d4ca23240cd338b8cab16f1027c540ddfe9c4ffdca1624d2f923b373

SHA512
5c47c59ad222e2597ccdf2c100853c48f022e933f44c279154346eacf9e7e6f54214ada541d43a10424035f160b56131aab206c11512a9fd6ea614fbd3160aa0

Download Submit
\Users\Admin\AppData\Local\Temp\wtmps.exe

Filesize
276KB

MD5
75c1467042b38332d1ea0298f29fb592

SHA1
f92ea770c2ddb04cf0d20914578e4c482328f0f8

SHA256
3b20c853d4ca23240cd338b8cab16f1027c540ddfe9c4ffdca1624d2f923b373

SHA512
5c47c59ad222e2597ccdf2c100853c48f022e933f44c279154346eacf9e7e6f54214ada541d43a10424035f160b56131aab206c11512a9fd6ea614fbd3160aa0

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\Defender\launch.exe

Filesize
172KB

MD5
daac1781c9d22f5743ade0cb41feaebf

SHA1
e2549eeeea42a6892b89d354498fcaa8ffd9cac4

SHA256
6a7093440420306cf7de53421a67af8a1094771e0aab9535acbd748d08ed766c

SHA512
190a7d5291e20002f996edf1e04456bfdff8b7b2f4ef113178bd42a9e5fd89fe6d410ae2c505de0358c4f53f9654ac1caaa8634665afa6d9691640dd4ee86160

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\Defender\launch.exe

Filesize
172KB

MD5
daac1781c9d22f5743ade0cb41feaebf

SHA1
e2549eeeea42a6892b89d354498fcaa8ffd9cac4

SHA256
6a7093440420306cf7de53421a67af8a1094771e0aab9535acbd748d08ed766c

SHA512
190a7d5291e20002f996edf1e04456bfdff8b7b2f4ef113178bd42a9e5fd89fe6d410ae2c505de0358c4f53f9654ac1caaa8634665afa6d9691640dd4ee86160

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\Messenger\Extension\WdExt.exe

Filesize
1.7MB

MD5
5f3e167a973b6df7e5c7f68a8d82efce

SHA1
fe825219b7cebc57d57cf5de79592e6080b9bcc2

SHA256
0f5d70a4d489e1c1ceddcaba98e5fcb85584dc41ac01d083d701e1547fab343c

SHA512
a9107fbf82ae88b60aa389401a4ff39a0651ac7432024461e8bec5b920a8a2904a949eccfd2ac4b6fce06f9cc1044c069759b4daf3728686eadbeb0fb5d38ce4

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\Messenger\Extension\WdExt.exe

Filesize
1.7MB

MD5
5f3e167a973b6df7e5c7f68a8d82efce

SHA1
fe825219b7cebc57d57cf5de79592e6080b9bcc2

SHA256
0f5d70a4d489e1c1ceddcaba98e5fcb85584dc41ac01d083d701e1547fab343c

SHA512
a9107fbf82ae88b60aa389401a4ff39a0651ac7432024461e8bec5b920a8a2904a949eccfd2ac4b6fce06f9cc1044c069759b4daf3728686eadbeb0fb5d38ce4

Download Submit
\Users\Admin\AppData\Roaming\Temp\mydll.dll

Filesize
202KB

MD5
7ff15a4f092cd4a96055ba69f903e3e9

SHA1
a3d338a38c2b92f95129814973f59446668402a8

SHA256
1b594e6d057c632abb3a8cf838157369024bd6b9f515ca8e774b22fe71a11627

SHA512
4b015d011c14c7e10568c09bf81894681535efb7d76c3ef9071fffb3837f62b36e695187b2d32581a30f07e79971054e231a2ca4e8ad7f0f83d5876f8c086dae

Download Submit
\Users\Admin\AppData\Roaming\Temp\mydll.dll

Filesize
202KB

MD5
7ff15a4f092cd4a96055ba69f903e3e9

SHA1
a3d338a38c2b92f95129814973f59446668402a8

SHA256
1b594e6d057c632abb3a8cf838157369024bd6b9f515ca8e774b22fe71a11627

SHA512
4b015d011c14c7e10568c09bf81894681535efb7d76c3ef9071fffb3837f62b36e695187b2d32581a30f07e79971054e231a2ca4e8ad7f0f83d5876f8c086dae

Download Submit
memory/1372-81-0x0000000010000000-0x0000000010015000-memory.dmp

Filesize
84KB

Download
memory/1720-55-0x0000000010000000-0x0000000010015000-memory.dmp

Filesize
84KB

Download
memory/1720-54-0x00000000765B1000-0x00000000765B3000-memory.dmp

Filesize
8KB

Download