69b61b2c00323cea3686315617d0f452e205dae10c47e02cbe1ea96fea38f582

Analysis

max time kernel
31s
max time network
34s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
15/06/2023, 14:26

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General

Target

WindowsInstaller-KB893803-v2-x86.exe
Size

2.5MB
MD5

342f79337765760ad4e392eb67d5ed2c
SHA1

8318455b36ba0a748307459279d46f2f4cdb5a0e
SHA256

69b61b2c00323cea3686315617d0f452e205dae10c47e02cbe1ea96fea38f582
SHA512

70f32d415c70a97eecf0280ee9e6b10db8f367eecfedd92fca6155a7db19a776d2a96d5fcdbde847036f4d7cf2e69b1d6df6c073025582097f28c71f607b7e12
SSDEEP

49152:nKiC/rk62xWNol+5gOsLO66qJ6021cJjLtk4pWGNG5VGFPNqJyoTL:orZ23AbsK6Ro022JjL2WEiVqJZL

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
916	update.exe

Loads dropped DLL 5 IoCs

pid	Process
1356	WindowsInstaller-KB893803-v2-x86.exe
916	update.exe
916	update.exe
916	update.exe
916	update.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\setupapi.log	update.exe
File opened for modification	\??\c:\windows\KB893803v2.log	update.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1356 wrote to memory of 916	1356	WindowsInstaller-KB893803-v2-x86.exe	28
PID 1356 wrote to memory of 916	1356	WindowsInstaller-KB893803-v2-x86.exe	28
PID 1356 wrote to memory of 916	1356	WindowsInstaller-KB893803-v2-x86.exe	28
PID 1356 wrote to memory of 916	1356	WindowsInstaller-KB893803-v2-x86.exe	28
PID 1356 wrote to memory of 916	1356	WindowsInstaller-KB893803-v2-x86.exe	28
PID 1356 wrote to memory of 916	1356	WindowsInstaller-KB893803-v2-x86.exe	28
PID 1356 wrote to memory of 916	1356	WindowsInstaller-KB893803-v2-x86.exe	28

C:\Users\Admin\AppData\Local\Temp\WindowsInstaller-KB893803-v2-x86.exe
"C:\Users\Admin\AppData\Local\Temp\WindowsInstaller-KB893803-v2-x86.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1356
- \??\c:\173d5847d08fe0d9722ccd17915b878d\UPDATE\update.exe
  c:\173d5847d08fe0d9722ccd17915b878d\UPDATE\update.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Windows directory
  PID:916

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\173d5847d08fe0d9722ccd17915b878d\update\update.exe

Filesize
701KB

MD5
3b5eaaedb8a9d3f98debbdb0cfd214d5

SHA1
c9e09f6f6026f928d3d6d9056af868df83bd44ef

SHA256
2e2e9f1ea41d8673bcf69c8c97fc16c22932e2b7807fc87c556516261ea33d99

SHA512
26dbaefdedf9ba0094714f65d78b7c68fefc6afbd937cb0322ac698cbf3d104c4ccfbfb671314d6ea98bce2b0c090e2d4a19441d1abc2acb6b143e05818c2b75

Download Submit
\173d5847d08fe0d9722ccd17915b878d\update\update.exe

Filesize
701KB

MD5
3b5eaaedb8a9d3f98debbdb0cfd214d5

SHA1
c9e09f6f6026f928d3d6d9056af868df83bd44ef

SHA256
2e2e9f1ea41d8673bcf69c8c97fc16c22932e2b7807fc87c556516261ea33d99

SHA512
26dbaefdedf9ba0094714f65d78b7c68fefc6afbd937cb0322ac698cbf3d104c4ccfbfb671314d6ea98bce2b0c090e2d4a19441d1abc2acb6b143e05818c2b75

Download Submit
\173d5847d08fe0d9722ccd17915b878d\update\update.exe

Filesize
701KB

MD5
3b5eaaedb8a9d3f98debbdb0cfd214d5

SHA1
c9e09f6f6026f928d3d6d9056af868df83bd44ef

SHA256
2e2e9f1ea41d8673bcf69c8c97fc16c22932e2b7807fc87c556516261ea33d99

SHA512
26dbaefdedf9ba0094714f65d78b7c68fefc6afbd937cb0322ac698cbf3d104c4ccfbfb671314d6ea98bce2b0c090e2d4a19441d1abc2acb6b143e05818c2b75

Download Submit
\173d5847d08fe0d9722ccd17915b878d\update\update.exe

Filesize
701KB

MD5
3b5eaaedb8a9d3f98debbdb0cfd214d5

SHA1
c9e09f6f6026f928d3d6d9056af868df83bd44ef

SHA256
2e2e9f1ea41d8673bcf69c8c97fc16c22932e2b7807fc87c556516261ea33d99

SHA512
26dbaefdedf9ba0094714f65d78b7c68fefc6afbd937cb0322ac698cbf3d104c4ccfbfb671314d6ea98bce2b0c090e2d4a19441d1abc2acb6b143e05818c2b75

Download Submit
\173d5847d08fe0d9722ccd17915b878d\update\update.exe

Filesize
701KB

MD5
3b5eaaedb8a9d3f98debbdb0cfd214d5

SHA1
c9e09f6f6026f928d3d6d9056af868df83bd44ef

SHA256
2e2e9f1ea41d8673bcf69c8c97fc16c22932e2b7807fc87c556516261ea33d99

SHA512
26dbaefdedf9ba0094714f65d78b7c68fefc6afbd937cb0322ac698cbf3d104c4ccfbfb671314d6ea98bce2b0c090e2d4a19441d1abc2acb6b143e05818c2b75

Download Submit
\173d5847d08fe0d9722ccd17915b878d\update\updspapi.dll

Filesize
363KB

MD5
ebdb17c673b090a949f17c9e6486aaf3

SHA1
2231731f56f803662e0f1d537b22cba7625ef433

SHA256
f484cf06e20996e1887b4304b33444f3ee1c03fb912f5ec8d5327c4074a97abb

SHA512
b05b2e548c507c2bce556acd43174c2a2743d46ba816896e97a475089237020208c710e25aa204aee40be36cc3c8480da0dc6c383cadf2c619268b48f5e8fe40

Download Submit
\??\c:\173d5847d08fe0d9722ccd17915b878d\UPDATE\UPDSPAPI.dll

Filesize
363KB

MD5
ebdb17c673b090a949f17c9e6486aaf3

SHA1
2231731f56f803662e0f1d537b22cba7625ef433

SHA256
f484cf06e20996e1887b4304b33444f3ee1c03fb912f5ec8d5327c4074a97abb

SHA512
b05b2e548c507c2bce556acd43174c2a2743d46ba816896e97a475089237020208c710e25aa204aee40be36cc3c8480da0dc6c383cadf2c619268b48f5e8fe40

Download Submit
\??\c:\173d5847d08fe0d9722ccd17915b878d\UPDATE\update.exe

Filesize
701KB

MD5
3b5eaaedb8a9d3f98debbdb0cfd214d5

SHA1
c9e09f6f6026f928d3d6d9056af868df83bd44ef

SHA256
2e2e9f1ea41d8673bcf69c8c97fc16c22932e2b7807fc87c556516261ea33d99

SHA512
26dbaefdedf9ba0094714f65d78b7c68fefc6afbd937cb0322ac698cbf3d104c4ccfbfb671314d6ea98bce2b0c090e2d4a19441d1abc2acb6b143e05818c2b75

Download Submit
\??\c:\173d5847d08fe0d9722ccd17915b878d\update\update_win2k.inf

Filesize
26KB

MD5
6e0bea7e95f32f24524f437396294160

SHA1
c18165182e5aa71bf5dc5401357570c54b48a1e9

SHA256
249f235710df38dcf59ee7d04fb14e460cd0ce41abd487387ff8cea336eb5b7b

SHA512
ec3a1a4cea3e63fc3b61bab9b08fe4a0a6be2f622bcb6fe99ba838fc2bb1cf5f71098776c383fd9cc7f0a9851b8190c6f280914ee54788d13c10613e97cd5f97

Download Submit
\??\c:\173d5847d08fe0d9722ccd17915b878d\update\updatebr.inf

Filesize
287B

MD5
7338506092eba55bd27963ad322cfeae

SHA1
0d80de1a2e27128d27bc12c5f9f7a938ef8cb817

SHA256
c5b64cce66182b9f35b670be6620dabd2f42ee3c8892eb9ef69bc75b52e5ee81

SHA512
bd4632d18b78b5742d428e6acb6a6b6196649cf323f7f4f4eb8d12cdbf4e9a358c93637ea2556cef83fa8e188e1ef1696743b6a25cd0feea5520bf924aa24eca

Download Submit
memory/916-84-0x0000000000250000-0x00000000002AC000-memory.dmp

Filesize
368KB

Download

Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads