79b2feea1d26ddca465aaa01a7dbb7dd35aa2f111e09766a2eca88b35df1c747

Analysis

max time kernel
150s
max time network
153s
platform
windows10_x64
resource
win10v20210408
submitted
05/10/2021, 13:02

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General

Target
80b1013a3e673f946936e221655d1eb8.exe
Size 1.2MB
Sample211005-p9t63aabdp
SHA256 79b2feea1d26ddca465aaa01a7dbb7dd35aa2f111e09766a2eca88b35df1c747
MD5 80b1013a3e673f946936e221655d1eb8
SHA1 cec7c017f93cb8eca302c5b9013304965a2a2a8f
SHA512 fd6cd6111ef6c2285ad98b7624a220fcc3031b220b52e1bc412ac9bbea1c4c8429df0fafc84625500bd17b39336e6a328a67aa236927959332893ae306ec99f5
MD5 SHA1 SHA512

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
296	RegAsm.exe
3660	RegAsm.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\dada = "\"C:\\Users\\Admin\\AppData\\Roaming\\dada.exe\""	80b1013a3e673f946936e221655d1eb8.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 752 set thread context of 3660	752	80b1013a3e673f946936e221655d1eb8.exe	76

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000_Classes\Local Settings	80b1013a3e673f946936e221655d1eb8.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
912	powershell.exe
912	powershell.exe
912	powershell.exe
2184	powershell.exe
2184	powershell.exe
2184	powershell.exe
752	80b1013a3e673f946936e221655d1eb8.exe
752	80b1013a3e673f946936e221655d1eb8.exe
752	80b1013a3e673f946936e221655d1eb8.exe
752	80b1013a3e673f946936e221655d1eb8.exe
752	80b1013a3e673f946936e221655d1eb8.exe
752	80b1013a3e673f946936e221655d1eb8.exe
752	80b1013a3e673f946936e221655d1eb8.exe
1004	powershell.exe
1004	powershell.exe
1004	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	912	powershell.exe
Token: SeDebugPrivilege	2184	powershell.exe
Token: SeDebugPrivilege	752	80b1013a3e673f946936e221655d1eb8.exe
Token: SeDebugPrivilege	1004	powershell.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 752 wrote to memory of 912	752	80b1013a3e673f946936e221655d1eb8.exe	68
PID 752 wrote to memory of 912	752	80b1013a3e673f946936e221655d1eb8.exe	68
PID 752 wrote to memory of 912	752	80b1013a3e673f946936e221655d1eb8.exe	68
PID 752 wrote to memory of 2184	752	80b1013a3e673f946936e221655d1eb8.exe	70
PID 752 wrote to memory of 2184	752	80b1013a3e673f946936e221655d1eb8.exe	70
PID 752 wrote to memory of 2184	752	80b1013a3e673f946936e221655d1eb8.exe	70
PID 752 wrote to memory of 3352	752	80b1013a3e673f946936e221655d1eb8.exe	74
PID 752 wrote to memory of 3352	752	80b1013a3e673f946936e221655d1eb8.exe	74
PID 752 wrote to memory of 3352	752	80b1013a3e673f946936e221655d1eb8.exe	74
PID 752 wrote to memory of 296	752	80b1013a3e673f946936e221655d1eb8.exe	75
PID 752 wrote to memory of 296	752	80b1013a3e673f946936e221655d1eb8.exe	75
PID 752 wrote to memory of 296	752	80b1013a3e673f946936e221655d1eb8.exe	75
PID 752 wrote to memory of 3660	752	80b1013a3e673f946936e221655d1eb8.exe	76
PID 752 wrote to memory of 3660	752	80b1013a3e673f946936e221655d1eb8.exe	76
PID 752 wrote to memory of 3660	752	80b1013a3e673f946936e221655d1eb8.exe	76
PID 752 wrote to memory of 3660	752	80b1013a3e673f946936e221655d1eb8.exe	76
PID 752 wrote to memory of 3660	752	80b1013a3e673f946936e221655d1eb8.exe	76
PID 752 wrote to memory of 3660	752	80b1013a3e673f946936e221655d1eb8.exe	76
PID 752 wrote to memory of 3660	752	80b1013a3e673f946936e221655d1eb8.exe	76
PID 752 wrote to memory of 3660	752	80b1013a3e673f946936e221655d1eb8.exe	76
PID 3352 wrote to memory of 1004	3352	WScript.exe	77
PID 3352 wrote to memory of 1004	3352	WScript.exe	77
PID 3352 wrote to memory of 1004	3352	WScript.exe	77

C:\Users\Admin\AppData\Local\Temp\80b1013a3e673f946936e221655d1eb8.exe
"C:\Users\Admin\AppData\Local\Temp\80b1013a3e673f946936e221655d1eb8.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:752
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Start-Sleep -s 10
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:912
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Start-Sleep -s 10
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2184
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\_Pttvqhsxjzfnu.vbs"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3352
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Set-MpPreference -ExclusionPath C:\,'C:\Users\Admin\AppData\Roaming\dada.exe'
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1004
- C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
  C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
  2⤵
  - Executes dropped EXE
  PID:296
- C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
  C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
  2⤵
  - Executes dropped EXE
  PID:3660

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/752-114-0x0000000000CE0000-0x0000000000CE1000-memory.dmp

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memory/752-176-0x00000000056E0000-0x00000000056E1000-memory.dmp

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memory/752-165-0x0000000005780000-0x000000000579F000-memory.dmp

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memory/752-163-0x0000000006920000-0x0000000006921000-memory.dmp

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memory/752-161-0x00000000061F0000-0x000000000631F000-memory.dmp

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memory/912-129-0x0000000008A70000-0x0000000008A71000-memory.dmp

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memory/912-120-0x0000000007950000-0x0000000007951000-memory.dmp

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memory/912-135-0x0000000009750000-0x0000000009751000-memory.dmp

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memory/912-137-0x0000000007313000-0x0000000007314000-memory.dmp

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memory/912-128-0x0000000008C30000-0x0000000008C31000-memory.dmp

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memory/912-127-0x00000000081A0000-0x00000000081A1000-memory.dmp

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memory/912-119-0x00000000072A0000-0x00000000072A1000-memory.dmp

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memory/912-122-0x0000000007312000-0x0000000007313000-memory.dmp

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memory/912-126-0x0000000008330000-0x0000000008331000-memory.dmp

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memory/912-134-0x0000000009FB0000-0x0000000009FB1000-memory.dmp

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memory/912-125-0x00000000082C0000-0x00000000082C1000-memory.dmp

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memory/912-121-0x0000000007310000-0x0000000007311000-memory.dmp

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memory/912-124-0x0000000008070000-0x0000000008071000-memory.dmp

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memory/912-123-0x0000000007790000-0x0000000007791000-memory.dmp

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memory/1004-409-0x0000000006E80000-0x0000000006E81000-memory.dmp

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memory/1004-212-0x000000007F510000-0x000000007F511000-memory.dmp

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memory/1004-211-0x0000000009490000-0x0000000009491000-memory.dmp

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memory/1004-214-0x0000000006BC3000-0x0000000006BC4000-memory.dmp

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memory/1004-199-0x0000000009340000-0x0000000009373000-memory.dmp

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memory/1004-213-0x0000000009660000-0x0000000009661000-memory.dmp

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memory/1004-206-0x0000000009320000-0x0000000009321000-memory.dmp

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memory/1004-184-0x0000000007C60000-0x0000000007C61000-memory.dmp

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memory/1004-415-0x0000000006E70000-0x0000000006E71000-memory.dmp

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memory/1004-187-0x00000000083B0000-0x00000000083B1000-memory.dmp

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memory/1004-190-0x0000000006BC2000-0x0000000006BC3000-memory.dmp

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memory/1004-189-0x0000000006BC0000-0x0000000006BC1000-memory.dmp

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memory/2184-162-0x0000000004A53000-0x0000000004A54000-memory.dmp

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memory/2184-152-0x0000000004A52000-0x0000000004A53000-memory.dmp

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memory/2184-151-0x0000000004A50000-0x0000000004A51000-memory.dmp

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memory/3660-191-0x0000000004F60000-0x0000000004F61000-memory.dmp

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memory/3660-181-0x0000000004DC0000-0x0000000004DC1000-memory.dmp

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memory/3660-168-0x0000000000400000-0x000000000042C000-memory.dmp

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