2a8897933ca5ef8b9ef0092b50977e9f7b1fb7041ed48acf4c613661fde81f18

Analysis

max time kernel
137s
max time network
138s
platform
windows10_x64
resource
win10v20201028
submitted
10/12/2020, 08:49

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General

Target
dhl_doc8532967438.exe
Size 898KB
Sample201210-v8rs8nsxkn
SHA256 2a8897933ca5ef8b9ef0092b50977e9f7b1fb7041ed48acf4c613661fde81f18
MD5 aa7c791a74b8a74586f4bec9c552de72
SHA1 56b51ada804ea70cd9cf1686980a5609fb22172e
SHA512 ead9e22993f26e7d4299d32d58801a03f2b83e5d89fe40bce192850e892d0b18b75d01e3c1ad2d5962dffd52ab8b0368f441d3ca7ce9814fe59c9fcd48e7998f
MD5 SHA1 SHA512

Score

9^/10

Malware Config

Signatures

ServiceHost packer 5 IoCs

Detects ServiceHost packer used for .NET malware

resource	yara_rule
behavioral2/memory/3872-23-0x00000000004375FE-mapping.dmp	servicehost
behavioral2/memory/3872-26-0x00000000004375FE-mapping.dmp	servicehost
behavioral2/memory/3872-27-0x00000000004375FE-mapping.dmp	servicehost
behavioral2/memory/3872-25-0x00000000004375FE-mapping.dmp	servicehost
behavioral2/memory/3872-24-0x00000000004375FE-mapping.dmp	servicehost

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1048 set thread context of 1528	1048	dhl_doc8532967438.exe	81
PID 1528 set thread context of 3872	1528	dhl_doc8532967438.exe	85

Creates scheduled task(s) 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
3768	schtasks.exe
3152	schtasks.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
1048	dhl_doc8532967438.exe
1048	dhl_doc8532967438.exe
1048	dhl_doc8532967438.exe
1528	dhl_doc8532967438.exe
1528	dhl_doc8532967438.exe
2276	dw20.exe
2276	dw20.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1048	dhl_doc8532967438.exe
Token: SeDebugPrivilege	1528	dhl_doc8532967438.exe
Token: SeRestorePrivilege	2276	dw20.exe
Token: SeBackupPrivilege	2276	dw20.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 1048 wrote to memory of 3768	1048	dhl_doc8532967438.exe	79
PID 1048 wrote to memory of 3768	1048	dhl_doc8532967438.exe	79
PID 1048 wrote to memory of 3768	1048	dhl_doc8532967438.exe	79
PID 1048 wrote to memory of 1528	1048	dhl_doc8532967438.exe	81
PID 1048 wrote to memory of 1528	1048	dhl_doc8532967438.exe	81
PID 1048 wrote to memory of 1528	1048	dhl_doc8532967438.exe	81
PID 1048 wrote to memory of 1528	1048	dhl_doc8532967438.exe	81
PID 1048 wrote to memory of 1528	1048	dhl_doc8532967438.exe	81
PID 1048 wrote to memory of 1528	1048	dhl_doc8532967438.exe	81
PID 1048 wrote to memory of 1528	1048	dhl_doc8532967438.exe	81
PID 1048 wrote to memory of 1528	1048	dhl_doc8532967438.exe	81
PID 1528 wrote to memory of 3152	1528	dhl_doc8532967438.exe	82
PID 1528 wrote to memory of 3152	1528	dhl_doc8532967438.exe	82
PID 1528 wrote to memory of 3152	1528	dhl_doc8532967438.exe	82
PID 1528 wrote to memory of 3884	1528	dhl_doc8532967438.exe	84
PID 1528 wrote to memory of 3884	1528	dhl_doc8532967438.exe	84
PID 1528 wrote to memory of 3884	1528	dhl_doc8532967438.exe	84
PID 1528 wrote to memory of 3872	1528	dhl_doc8532967438.exe	85
PID 1528 wrote to memory of 3872	1528	dhl_doc8532967438.exe	85
PID 1528 wrote to memory of 3872	1528	dhl_doc8532967438.exe	85
PID 1528 wrote to memory of 3872	1528	dhl_doc8532967438.exe	85
PID 1528 wrote to memory of 3872	1528	dhl_doc8532967438.exe	85
PID 1528 wrote to memory of 3872	1528	dhl_doc8532967438.exe	85
PID 1528 wrote to memory of 3872	1528	dhl_doc8532967438.exe	85
PID 1528 wrote to memory of 3872	1528	dhl_doc8532967438.exe	85
PID 3872 wrote to memory of 2276	3872	dhl_doc8532967438.exe	86
PID 3872 wrote to memory of 2276	3872	dhl_doc8532967438.exe	86
PID 3872 wrote to memory of 2276	3872	dhl_doc8532967438.exe	86

C:\Users\Admin\AppData\Local\Temp\dhl_doc8532967438.exe
"C:\Users\Admin\AppData\Local\Temp\dhl_doc8532967438.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1048
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zajBLGBtTgggi" /XML "C:\Users\Admin\AppData\Local\Temp\tmp456.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3768
- C:\Users\Admin\AppData\Local\Temp\dhl_doc8532967438.exe
  "{path}"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1528
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\kuqVvGbbkNJZ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB660.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:3152
- - C:\Users\Admin\AppData\Local\Temp\dhl_doc8532967438.exe
    "{path}"
    3⤵
    PID:3884
- - C:\Users\Admin\AppData\Local\Temp\dhl_doc8532967438.exe
    "{path}"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3872
  - - C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
      dw20.exe -x -s 704
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2276

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1528-7-0x0000000000400000-0x0000000000478000-memory.dmp

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memory/2276-51-0x0000000000B30000-0x0000000000B31000-memory.dmp

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memory/2276-49-0x0000000000B30000-0x0000000000B31000-memory.dmp

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memory/2276-64-0x0000000000B30000-0x0000000000B31000-memory.dmp

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memory/2276-63-0x0000000000B30000-0x0000000000B31000-memory.dmp

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memory/2276-15-0x00000000025A0000-0x00000000025A1000-memory.dmp

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memory/2276-16-0x00000000025A0000-0x00000000025A1000-memory.dmp

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memory/2276-18-0x0000000002A70000-0x0000000002A71000-memory.dmp

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memory/2276-21-0x00000000028C0000-0x00000000028C1000-memory.dmp

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memory/2276-62-0x0000000000B30000-0x0000000000B31000-memory.dmp

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memory/2276-61-0x0000000000B30000-0x0000000000B31000-memory.dmp

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memory/2276-53-0x0000000000B30000-0x0000000000B31000-memory.dmp

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memory/2276-58-0x0000000000B30000-0x0000000000B31000-memory.dmp

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memory/2276-28-0x0000000000B30000-0x0000000000B31000-memory.dmp

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memory/2276-29-0x0000000002EB0000-0x0000000002EB1000-memory.dmp

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memory/2276-30-0x0000000000B30000-0x0000000000B31000-memory.dmp

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memory/2276-31-0x0000000000B30000-0x0000000000B31000-memory.dmp

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memory/2276-32-0x0000000000B30000-0x0000000000B31000-memory.dmp

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memory/2276-33-0x0000000000B30000-0x0000000000B31000-memory.dmp

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memory/2276-34-0x0000000000B30000-0x0000000000B31000-memory.dmp

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memory/2276-39-0x0000000000B30000-0x0000000000B31000-memory.dmp

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memory/2276-35-0x0000000000B30000-0x0000000000B31000-memory.dmp

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memory/2276-36-0x0000000000B30000-0x0000000000B31000-memory.dmp

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memory/2276-37-0x0000000000B30000-0x0000000000B31000-memory.dmp

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memory/2276-60-0x0000000000B30000-0x0000000000B31000-memory.dmp

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memory/2276-59-0x0000000000B30000-0x0000000000B31000-memory.dmp

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memory/2276-38-0x0000000000B30000-0x0000000000B31000-memory.dmp

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memory/2276-42-0x0000000000B30000-0x0000000000B31000-memory.dmp

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memory/2276-41-0x0000000000B30000-0x0000000000B31000-memory.dmp

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memory/2276-43-0x0000000000B30000-0x0000000000B31000-memory.dmp

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memory/2276-44-0x0000000000B30000-0x0000000000B31000-memory.dmp

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memory/2276-45-0x0000000000B30000-0x0000000000B31000-memory.dmp

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memory/2276-46-0x0000000000B30000-0x0000000000B31000-memory.dmp

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memory/2276-47-0x0000000000B30000-0x0000000000B31000-memory.dmp

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memory/2276-50-0x0000000000B30000-0x0000000000B31000-memory.dmp

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memory/2276-40-0x0000000000B30000-0x0000000000B31000-memory.dmp

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memory/2276-48-0x0000000000B30000-0x0000000000B31000-memory.dmp

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memory/2276-57-0x0000000000B30000-0x0000000000B31000-memory.dmp

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memory/2276-52-0x0000000000B30000-0x0000000000B31000-memory.dmp

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memory/2276-54-0x0000000000B30000-0x0000000000B31000-memory.dmp

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memory/2276-55-0x0000000000B30000-0x0000000000B31000-memory.dmp

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memory/2276-56-0x0000000000B30000-0x0000000000B31000-memory.dmp

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memory/3872-12-0x0000000000400000-0x000000000043C000-memory.dmp

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