e80b6b17c71fbba13316f2c9fbda01c59abeff6da89d70c79396e82f6dc51dc9

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-en-20211208
submitted
28/01/2022, 04:26

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General

Target
ae481600d1c6016601748462f1f1d6c5.exe
Size 1.5MB
Sample220128-e2jegsfear
SHA256 e80b6b17c71fbba13316f2c9fbda01c59abeff6da89d70c79396e82f6dc51dc9
MD5 ae481600d1c6016601748462f1f1d6c5
SHA1 abbd7e13e82cbc886e0be96daf3b9e5899ce1a8d
SHA512 564b81aea443a6215369dcd09f4722c801d022143560192fe527a2ead3bc5c3d404b7a012bbaf264cf47348dd5c901e71842879acd0c7c5346b2c2bc5ed5e7de
MD5 SHA1 SHA512

Score

10^/10

spyware stealer suricata

Malware Config

Signatures

Process spawned unexpected child process 9 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2028	1828	schtasks.exe	28
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1868	1828	schtasks.exe	28
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1060	1828	schtasks.exe	28
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1800	1828	schtasks.exe	28
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	828	1828	schtasks.exe	28
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1588	1828	schtasks.exe	28
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1948	1828	schtasks.exe	28
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1708	1828	schtasks.exe	28
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1988	1828	schtasks.exe	28

suricata: ET MALWARE DCRAT Activity (GET)
suricata: ET MALWARE DCRAT Activity (GET)
suricata

Executes dropped EXE 2 IoCs

pid	Process
432	dllCommonCrtNet_protected.exe
1572	services.exe

Loads dropped DLL 7 IoCs

pid	Process
1600	ae481600d1c6016601748462f1f1d6c5.exe
1600	ae481600d1c6016601748462f1f1d6c5.exe
1600	ae481600d1c6016601748462f1f1d6c5.exe
1600	ae481600d1c6016601748462f1f1d6c5.exe
1600	ae481600d1c6016601748462f1f1d6c5.exe
548	cmd.exe
548	cmd.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\d3dim700\lsm.exe	dllCommonCrtNet_protected.exe
File opened for modification	C:\Windows\SysWOW64\d3dim700\lsm.exe	dllCommonCrtNet_protected.exe
File created	C:\Windows\SysWOW64\d3dim700\101b941d020240	dllCommonCrtNet_protected.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 17 IoCs

pid	Process
432	dllCommonCrtNet_protected.exe
432	dllCommonCrtNet_protected.exe
1572	services.exe
1572	services.exe
1572	services.exe
1572	services.exe
1572	services.exe
1572	services.exe
1572	services.exe
1572	services.exe
1572	services.exe
1572	services.exe
1572	services.exe
1572	services.exe
1572	services.exe
1572	services.exe
1572	services.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 432 set thread context of 548	432	dllCommonCrtNet_protected.exe	38
PID 548 set thread context of 892	548	cmd.exe	40
PID 548 set thread context of 1572	548	cmd.exe	42
PID 548 set thread context of 1572	548	cmd.exe	42

Drops file in Windows directory 8 IoCs

description	ioc	Process
File created	C:\Windows\msdfmap\explorer.exe	dllCommonCrtNet_protected.exe
File created	C:\Windows\msdfmap\7a0fd90576e088	dllCommonCrtNet_protected.exe
File created	C:\Windows\Media\Savanna\winlogon.exe	dllCommonCrtNet_protected.exe
File created	C:\Windows\Media\Savanna\cc11b995f2a76d	dllCommonCrtNet_protected.exe
File created	C:\Windows\bootstat\explorer.exe	dllCommonCrtNet_protected.exe
File created	C:\Windows\bootstat\7a0fd90576e088	dllCommonCrtNet_protected.exe
File created	C:\Windows\Logs\CBS\spoolsv.exe	dllCommonCrtNet_protected.exe
File created	C:\Windows\Logs\CBS\f3b6ecef712a24	dllCommonCrtNet_protected.exe

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 9 IoCs

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

persistence

Scheduled Task

T1053

pid	Process
1060	schtasks.exe
828	schtasks.exe
2028	schtasks.exe
1868	schtasks.exe
1948	schtasks.exe
1708	schtasks.exe
1988	schtasks.exe
1800	schtasks.exe
1588	schtasks.exe

Suspicious behavior: EnumeratesProcesses 15 IoCs

pid	Process
432	dllCommonCrtNet_protected.exe
432	dllCommonCrtNet_protected.exe
432	dllCommonCrtNet_protected.exe
1572	services.exe
1572	services.exe
1572	services.exe
1572	services.exe
1572	services.exe
1572	services.exe
1572	services.exe
1572	services.exe
1572	services.exe
1572	services.exe
1572	services.exe
1572	services.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1572	services.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	432	dllCommonCrtNet_protected.exe
Token: SeDebugPrivilege	1572	services.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
432	dllCommonCrtNet_protected.exe
1572	services.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1600 wrote to memory of 432	1600	ae481600d1c6016601748462f1f1d6c5.exe	27
PID 1600 wrote to memory of 432	1600	ae481600d1c6016601748462f1f1d6c5.exe	27
PID 1600 wrote to memory of 432	1600	ae481600d1c6016601748462f1f1d6c5.exe	27
PID 1600 wrote to memory of 432	1600	ae481600d1c6016601748462f1f1d6c5.exe	27
PID 432 wrote to memory of 548	432	dllCommonCrtNet_protected.exe	38
PID 432 wrote to memory of 548	432	dllCommonCrtNet_protected.exe	38
PID 432 wrote to memory of 548	432	dllCommonCrtNet_protected.exe	38
PID 432 wrote to memory of 548	432	dllCommonCrtNet_protected.exe	38
PID 432 wrote to memory of 548	432	dllCommonCrtNet_protected.exe	38
PID 432 wrote to memory of 548	432	dllCommonCrtNet_protected.exe	38
PID 432 wrote to memory of 548	432	dllCommonCrtNet_protected.exe	38
PID 548 wrote to memory of 892	548	cmd.exe	40
PID 548 wrote to memory of 892	548	cmd.exe	40
PID 548 wrote to memory of 892	548	cmd.exe	40
PID 548 wrote to memory of 892	548	cmd.exe	40
PID 548 wrote to memory of 892	548	cmd.exe	40
PID 548 wrote to memory of 892	548	cmd.exe	40
PID 548 wrote to memory of 892	548	cmd.exe	40
PID 892 wrote to memory of 1696	892	w32tm.exe	41
PID 892 wrote to memory of 1696	892	w32tm.exe	41
PID 892 wrote to memory of 1696	892	w32tm.exe	41
PID 892 wrote to memory of 1696	892	w32tm.exe	41
PID 548 wrote to memory of 1572	548	cmd.exe	42
PID 548 wrote to memory of 1572	548	cmd.exe	42
PID 548 wrote to memory of 1572	548	cmd.exe	42
PID 548 wrote to memory of 1572	548	cmd.exe	42
PID 548 wrote to memory of 1572	548	cmd.exe	42
PID 548 wrote to memory of 1572	548	cmd.exe	42
PID 548 wrote to memory of 1572	548	cmd.exe	42
PID 548 wrote to memory of 1572	548	cmd.exe	42

C:\Users\Admin\AppData\Local\Temp\ae481600d1c6016601748462f1f1d6c5.exe
"C:\Users\Admin\AppData\Local\Temp\ae481600d1c6016601748462f1f1d6c5.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1600
- C:\Users\Admin\AppData\Local\Temp\dllCommonCrtNet_protected.exe
  "C:\Users\Admin\AppData\Local\Temp\dllCommonCrtNet_protected.exe"
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious use of SetThreadContext
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:432
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\Wu4p2au4kZ.bat"
    3⤵
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:548
  - - C:\Windows\SysWOW64\w32tm.exe
      w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
      4⤵
      Suspicious use of WriteProcessMemory
      PID:892
    - - C:\Windows\system32\w32tm.exe
        
        w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
        5⤵
        
        PID:1696
  - - C:\Recovery\bb8f4342-587c-11ec-ba95-d612cd5803e9\services.exe
      "C:\Recovery\bb8f4342-587c-11ec-ba95-d612cd5803e9\services.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of NtSetInformationThreadHideFromDebugger
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:1572

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsm" /sc ONLOGON /tr "'C:\Windows\System32\d3dim700\lsm.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2028

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllCommonCrtNet_protected" /sc ONLOGON /tr "'C:\Documents and Settings\dllCommonCrtNet_protected.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1868

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\Windows\bootstat\explorer.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1060

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\Recovery\bb8f4342-587c-11ec-ba95-d612cd5803e9\services.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1800

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\ProgramData\Favorites\csrss.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:828

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\Windows\Logs\CBS\spoolsv.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1588

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\Windows\msdfmap\explorer.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1948

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "winlogon" /sc ONLOGON /tr "'C:\Windows\Media\Savanna\winlogon.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1708

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllCommonCrtNet_protected" /sc ONLOGON /tr "'C:\Documents and Settings\dllCommonCrtNet_protected.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1988

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

Credentials in Files

T1081

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/432-63-0x0000000000D20000-0x00000000010E6000-memory.dmp

Download

memory/432-62-0x0000000000D20000-0x00000000010E6000-memory.dmp

Download

memory/432-64-0x0000000003000000-0x0000000003001000-memory.dmp

Download

memory/548-68-0x0000000000090000-0x0000000000091000-memory.dmp

Download

memory/548-75-0x00000000000F0000-0x000000000016E000-memory.dmp

Download

memory/548-65-0x00000000000F0000-0x000000000016E000-memory.dmp

Download

memory/548-66-0x0000000000050000-0x0000000000051000-memory.dmp

Download

memory/892-77-0x0000000000050000-0x00000000000CE000-memory.dmp

Download

memory/892-74-0x0000000000110000-0x0000000000111000-memory.dmp

Download

memory/1572-84-0x0000000000100000-0x0000000000101000-memory.dmp

Download

memory/1572-89-0x0000000000320000-0x00000000006E6000-memory.dmp

Download

memory/1572-90-0x0000000003390000-0x0000000003391000-memory.dmp

Download

memory/1600-53-0x0000000075471000-0x0000000075473000-memory.dmp

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