cfc1155f576b0a19d0751b0ae796e7db156ebc7ee8bfa38a735d6856351e2336

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
24-09-2024 18:24

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General

Target

240923名录手册.exe
Size

6.3MB
MD5

18f3080e28eaebcd43c74f4697fc48cc
SHA1

4164491b4b955362d5d77652f6f3e08f2f5e7ac3
SHA256

a9e6409722eb63eb44c256a1d95bab37af27c4b822464896f9e953a151930308
SHA512

8a028a5bdcf9ea20d879af1da0b84898bf2c584789c368fc320ffe7505d9cca443670198fedb7934af58d626f323e8892d5e89da11983fc00a67a331f1e1a13c
SSDEEP

98304:Cv6fRnOrGoJFVyYU8ohf0kGVrr0K4aueL2hYtIvf+xmVVHtMlhh:Q6peGoJFV5UxhMk60gTw6xf

Score

5^/10

Malware Config

Signatures

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\Tasks\Microsoft\Windows\UpdateOrchestrator\Schedule Scan	svchost.exe
File opened for modification	C:\Windows\System32\Tasks\Microsoft\Windows\UpdateOrchestrator\Schedule Work	svchost.exe
File opened for modification	C:\Windows\System32\Tasks\Microsoft\Windows\UpdateOrchestrator\Schedule Wake To Work	svchost.exe
File opened for modification	C:\Windows\System32\Tasks\Microsoft\Windows\UpdateOrchestrator\Schedule Maintenance Work	svchost.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1100 set thread context of 324	1100	svchost.exe	84
PID 324 set thread context of 1544	324	svchost.exe	85

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4412	240923名录手册.exe
4412	240923名录手册.exe
4412	240923名录手册.exe
4412	240923名录手册.exe
4412	240923名录手册.exe
4412	240923名录手册.exe
2544	assist.exe
2544	assist.exe
2544	assist.exe
2544	assist.exe
2544	assist.exe
2544	assist.exe
4112	assist.exe
4112	assist.exe
4112	assist.exe
4112	assist.exe
4112	assist.exe
4112	assist.exe
1100	svchost.exe
1100	svchost.exe
1100	svchost.exe
1100	svchost.exe
324	svchost.exe
324	svchost.exe
1544	dllhost.exe
1544	dllhost.exe
1544	dllhost.exe
1544	dllhost.exe
324	svchost.exe
324	svchost.exe
324	svchost.exe
324	svchost.exe
324	svchost.exe
324	svchost.exe
324	svchost.exe
324	svchost.exe
324	svchost.exe
324	svchost.exe
324	svchost.exe
324	svchost.exe
324	svchost.exe
324	svchost.exe
324	svchost.exe
324	svchost.exe
324	svchost.exe
324	svchost.exe
324	svchost.exe
324	svchost.exe
324	svchost.exe
324	svchost.exe
324	svchost.exe
324	svchost.exe
324	svchost.exe
324	svchost.exe
324	svchost.exe
324	svchost.exe
324	svchost.exe
324	svchost.exe
324	svchost.exe
324	svchost.exe
324	svchost.exe
324	svchost.exe
324	svchost.exe
324	svchost.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeDebugPrivilege	4112	assist.exe
Token: SeDebugPrivilege	4112	assist.exe
Token: SeDebugPrivilege	1100	svchost.exe
Token: SeDebugPrivilege	324	svchost.exe
Token: SeDebugPrivilege	324	svchost.exe
Token: SeDebugPrivilege	324	svchost.exe
Token: SeDebugPrivilege	324	svchost.exe
Token: SeDebugPrivilege	324	svchost.exe
Token: SeDebugPrivilege	324	svchost.exe
Token: SeDebugPrivilege	324	svchost.exe
Token: SeDebugPrivilege	324	svchost.exe
Token: SeDebugPrivilege	324	svchost.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4412 wrote to memory of 3472	4412	240923名录手册.exe	56
PID 4412 wrote to memory of 3472	4412	240923名录手册.exe	56
PID 4412 wrote to memory of 3472	4412	240923名录手册.exe	56
PID 4412 wrote to memory of 3472	4412	240923名录手册.exe	56
PID 4412 wrote to memory of 3472	4412	240923名录手册.exe	56
PID 4112 wrote to memory of 1100	4112	assist.exe	17
PID 4112 wrote to memory of 1100	4112	assist.exe	17
PID 4112 wrote to memory of 1100	4112	assist.exe	17
PID 1100 wrote to memory of 324	1100	svchost.exe	84
PID 1100 wrote to memory of 324	1100	svchost.exe	84
PID 1100 wrote to memory of 324	1100	svchost.exe	84
PID 1100 wrote to memory of 324	1100	svchost.exe	84
PID 1100 wrote to memory of 324	1100	svchost.exe	84
PID 324 wrote to memory of 1544	324	svchost.exe	85
PID 324 wrote to memory of 1544	324	svchost.exe	85
PID 324 wrote to memory of 1544	324	svchost.exe	85
PID 324 wrote to memory of 1544	324	svchost.exe	85
PID 324 wrote to memory of 1544	324	svchost.exe	85

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s Schedule
1⤵
- Drops file in System32 directory
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1100
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k netsvcs
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:324
- - C:\Windows\system32\dllhost.exe
    C:\Windows\system32\dllhost.exe /Processid:{F8284233-48F4-4680-ADDD-F8284233}
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:1544

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3472
- C:\Users\Admin\AppData\Local\Temp\240923名录手册.exe
  "C:\Users\Admin\AppData\Local\Temp\240923名录手册.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4412
- C:\Users\Admin\AppData\Local\Temp\assist.exe
  "C:\Users\Admin\AppData\Local\Temp\assist.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2544

C:\Program Files\Windows NT\assist.exe
"C:\Program Files\Windows NT\assist.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4112

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Windows\System32\Tasks\Microsoft\Windows\UpdateOrchestrator\Schedule Maintenance Work

Filesize
2KB

MD5
f313c5b4f95605026428425586317353

SHA1
06be66fa06e1cffc54459c38d3d258f46669d01a

SHA256
129d0b993cd3858af5b7e87fdf74d8e59e6f2110184b5c905df8f5f6f2c39d8b

SHA512
b87a829c86eff1d10e1590b18a9909f05101a535e5f4cef914a4192956eb35a8bfef614c9f95d53783d77571687f3eb3c4e8ee2f24d23ad24e0976d8266b8890

Download Submit
C:\Windows\System32\Tasks\Microsoft\Windows\UpdateOrchestrator\Schedule Wake To Work

Filesize
2KB

MD5
ceb7caa4e9c4b8d760dbf7e9e5ca44c5

SHA1
a3879621f9493414d497ea6d70fbf17e283d5c08

SHA256
98c054088df4957e8d6361fd2539c219bcf35f8a524aad8f5d1a95f218e990e9

SHA512
1eddfbf4cb62d3c5b4755a371316304aaeabb00f01bad03fb4f925a98a2f0824f613537d86deddd648a74d694dc13ed5183e761fdc1ec92589f6fa28beb7fbff

Download Submit
C:\Windows\System32\Tasks\Microsoft\Windows\UpdateOrchestrator\Schedule Wake To Work

Filesize
2KB

MD5
7d612892b20e70250dbd00d0cdd4f09b

SHA1
63251cfa4e5d6cbf6fb14f6d8a7407dbe763d3f5

SHA256
727c9e7b91e144e453d5b32e18f12508ee84dabe71bc852941d9c9b4923f9e02

SHA512
f8d481f3300947d49ce5ab988a9d4e3154746afccc97081cbed1135ffb24fc107203d485dda2d5d714e74e752c614d8cfd16781ea93450fe782ffae3f77066d1

Download Submit
C:\Windows\System32\Tasks\Microsoft\Windows\UpdateOrchestrator\Schedule Work

Filesize
2KB

MD5
1e8e2076314d54dd72e7ee09ff8a52ab

SHA1
5fd0a67671430f66237f483eef39ff599b892272

SHA256
55f203d6b40a39a6beba9dd3a2cb9034284f49578009835dd4f0f8e1db6ebe2f

SHA512
5b0c97284923c4619d9c00cba20ce1c6d65d1826abe664c390b04283f7a663256b4a6efe51f794cb5ec82ccea80307729addde841469da8d041cbcfd94feb0f6

Download Submit
C:\Windows\System32\Tasks\Microsoft\Windows\UpdateOrchestrator\Schedule Work

Filesize
2KB

MD5
0b990e24f1e839462c0ac35fef1d119e

SHA1
9e17905f8f68f9ce0a2024d57b537aa8b39c6708

SHA256
a1106ed0845cd438e074344e0fe296dc10ee121a0179e09398eaaea2357c614a

SHA512
c65ba42fc0a2cb0b70888beb8ca334f7d5a8eaf954a5ef7adaecbcb4ce8d61b34858dfd9560954f95f59b4d8110a79ceaa39088b6a0caf8b42ceda41b46ec4a4

Download Submit
memory/324-37-0x000002899C110000-0x000002899C111000-memory.dmp

Filesize
4KB

Download
memory/324-43-0x00007FFD7C190000-0x00007FFD7C385000-memory.dmp

Filesize
2.0MB

Download
memory/1100-25-0x000001ECBB9B0000-0x000001ECBB9B1000-memory.dmp

Filesize
4KB

Download
memory/1544-55-0x00007FFD7C190000-0x00007FFD7C385000-memory.dmp

Filesize
2.0MB

Download
memory/2544-13-0x00007FFD7C190000-0x00007FFD7C385000-memory.dmp

Filesize
2.0MB

Download
memory/2544-31-0x00007FFD6D8D0000-0x00007FFD6DB4B000-memory.dmp

Filesize
2.5MB

Download
memory/2544-32-0x0000000140000000-0x00000001401AB000-memory.dmp

Filesize
1.7MB

Download
memory/2544-10-0x0000000180000000-0x000000018006A000-memory.dmp

Filesize
424KB

Download
memory/2544-8-0x0000000140000000-0x00000001401AB000-memory.dmp

Filesize
1.7MB

Download
memory/4112-28-0x0000000140000000-0x00000001401AB000-memory.dmp

Filesize
1.7MB

Download
memory/4112-24-0x00007FFD7C190000-0x00007FFD7C385000-memory.dmp

Filesize
2.0MB

Download
memory/4112-19-0x0000000140000000-0x00000001401AB000-memory.dmp

Filesize
1.7MB

Download
memory/4412-0-0x000001E157600000-0x000001E157601000-memory.dmp

Filesize
4KB

Download
memory/4412-1-0x0000000180000000-0x000000018000D000-memory.dmp

Filesize
52KB

Download