f8e972a26117bd14f5ec4dca9de0244d0bfd29bbbfd9104b2ccdc49fa93416d8

Resubmissions

09-02-2023 12:02

230209-n7e4pabe53 7

09-02-2023 12:01

230209-n7bq9sbb7y 7

21-01-2022 22:50

220121-2sqtjabgf5 9

Analysis

max time kernel
132s
max time network
136s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
09-02-2023 12:01

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Report Analysis Logs

General

Target

f8e972a26117bd14f5ec4dca9de0244d0bfd29bbbfd9104b2ccdc49fa93416d8.dll
Size

143KB
MD5

80a2bb7884b8bad4a8e83c2cb03ee343
SHA1

6620029006c7174987ddcbe48dc0d4ceb6fe584c
SHA256

f8e972a26117bd14f5ec4dca9de0244d0bfd29bbbfd9104b2ccdc49fa93416d8
SHA512

6af7016a956f226fe38cfe9fb6cb64044cb47706a509dc117c061f92ea30e59013936dd942ab1a1744d080a30e6d0605866b694edf761e32818e9208af21a85c
SSDEEP

3072:IqmV+SbU/ZriU7Qrx74MfunDR6s2r5OubTJOOJrFUSyYe/hkYo1bHVqMHf8QO:IilxriU7UcMfun/2VOStr5ZI7o1LkM/8

Score

7^/10

persistence upx

Malware Config

Signatures

ACProtect 1.3x - 1.4x DLL software 2 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x00040000000162a5-140.dat	acprotect
behavioral2/files/0x00040000000162a5-141.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
4888	regsvr32.exe

UPX packed file 6 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/3412-133-0x0000000075540000-0x000000007559C000-memory.dmp	upx
behavioral2/memory/3412-138-0x0000000075540000-0x000000007559C000-memory.dmp	upx
behavioral2/files/0x00040000000162a5-140.dat	upx
behavioral2/files/0x00040000000162a5-141.dat	upx
behavioral2/memory/4888-142-0x0000000075540000-0x000000007559C000-memory.dmp	upx
behavioral2/memory/4888-143-0x0000000075540000-0x000000007559C000-memory.dmp	upx

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-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WindowsDefenderAutoUpdate = "regsvr32.exe /s \"C:\\ProgramData\\Software\\Microsoft\\Windows\\Defender\\AutoUpdate.dll\""	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WindowsDefenderAutoUpdate = "regsvr32.exe /s \"C:\\ProgramData\\Software\\Microsoft\\Windows\\Defender\\AutoUpdate.dll\""	regsvr32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4888	regsvr32.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3036 wrote to memory of 3412	3036	regsvr32.exe	84
PID 3036 wrote to memory of 3412	3036	regsvr32.exe	84
PID 3036 wrote to memory of 3412	3036	regsvr32.exe	84
PID 3412 wrote to memory of 4616	3412	regsvr32.exe	85
PID 3412 wrote to memory of 4616	3412	regsvr32.exe	85
PID 3412 wrote to memory of 4616	3412	regsvr32.exe	85
PID 3412 wrote to memory of 1176	3412	regsvr32.exe	90
PID 3412 wrote to memory of 1176	3412	regsvr32.exe	90
PID 3412 wrote to memory of 1176	3412	regsvr32.exe	90
PID 3412 wrote to memory of 4888	3412	regsvr32.exe	92
PID 3412 wrote to memory of 4888	3412	regsvr32.exe	92
PID 3412 wrote to memory of 4888	3412	regsvr32.exe	92

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\f8e972a26117bd14f5ec4dca9de0244d0bfd29bbbfd9104b2ccdc49fa93416d8.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:3036
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\f8e972a26117bd14f5ec4dca9de0244d0bfd29bbbfd9104b2ccdc49fa93416d8.dll
  2⤵
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:3412
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c C:\ProgramData\temp\E361.tmp.bat
    3⤵
    PID:4616
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c C:\ProgramData\temp\F331.tmp.bat
    3⤵
    PID:1176
- - C:\Windows\SysWOW64\regsvr32.exe
    regsvr32.exe /s "C:\ProgramData\Software\Microsoft\Windows\Defender\AutoUpdate.dll"
    3⤵
    - Loads dropped DLL
    - Adds Run key to start application
    - Suspicious use of AdjustPrivilegeToken
    PID:4888

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\Software\Microsoft\Windows\Defender\AutoUpdate.dll

Filesize
143KB

MD5
80a2bb7884b8bad4a8e83c2cb03ee343

SHA1
6620029006c7174987ddcbe48dc0d4ceb6fe584c

SHA256
f8e972a26117bd14f5ec4dca9de0244d0bfd29bbbfd9104b2ccdc49fa93416d8

SHA512
6af7016a956f226fe38cfe9fb6cb64044cb47706a509dc117c061f92ea30e59013936dd942ab1a1744d080a30e6d0605866b694edf761e32818e9208af21a85c

Download Submit
C:\ProgramData\Software\Microsoft\Windows\Defender\AutoUpdate.dll

Filesize
143KB

MD5
80a2bb7884b8bad4a8e83c2cb03ee343

SHA1
6620029006c7174987ddcbe48dc0d4ceb6fe584c

SHA256
f8e972a26117bd14f5ec4dca9de0244d0bfd29bbbfd9104b2ccdc49fa93416d8

SHA512
6af7016a956f226fe38cfe9fb6cb64044cb47706a509dc117c061f92ea30e59013936dd942ab1a1744d080a30e6d0605866b694edf761e32818e9208af21a85c

Download Submit
C:\ProgramData\temp\E361.tmp.bat

Filesize
126B

MD5
f352aea655107909f7a38fded7df41bb

SHA1
2d620bc66edc49b30bf99ff363ddb3270e1d5cc6

SHA256
a85025bfc2e1fe4745cfa57447659920b42ff259ecb0aad1ed93bb9bf68f5b53

SHA512
df6e673f79e90bb26b92c5dfdb7c0f52511c27aaf7f02298411cd42811de5f7a5d3c30d97f2b7a5c544957a102fd1f26d8acc179f9bcd684f73dce12ac6479de

Download Submit
C:\ProgramData\temp\F331.tmp.bat

Filesize
274B

MD5
fc8d86b83c73244cbf8235655d536a6e

SHA1
b11baa292dc13b4fa6f6a06a284c8553383412e9

SHA256
fa944dabe1725e24fddd214b16fc46e8da1a3f15b819dc4de025bb363b12b9ac

SHA512
9844d51bae6ce80a07a5e65fcfaa87dbbda117b45941306854bb632fb6800ba8bef215b6c5d0f36ded8b5a39a00e8cf84f9efb982ea13d815a73b90a1aee6ec0

Download Submit
memory/3412-133-0x0000000075540000-0x000000007559C000-memory.dmp

Filesize
368KB

Download
memory/3412-138-0x0000000075540000-0x000000007559C000-memory.dmp

Filesize
368KB

Download
memory/4888-142-0x0000000075540000-0x000000007559C000-memory.dmp

Filesize
368KB

Download
memory/4888-143-0x0000000075540000-0x000000007559C000-memory.dmp

Filesize
368KB

Download