djvu | 6aae67d87cd2ef23c4b9265c8e83db5142f00154e66e47b1e54219cea794682b

Analysis

max time kernel
121s
max time network
140s
platform
windows7_x64
resource
win7-en-20210920
submitted
19/10/2021, 14:29

Sharing

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General

Target
c81d1895f7472cec079c7f12419feaf0.exe
Size 820KB
Sample211019-rtkc2aghdj
SHA256 6aae67d87cd2ef23c4b9265c8e83db5142f00154e66e47b1e54219cea794682b
MD5 c81d1895f7472cec079c7f12419feaf0
SHA1 729557420c331200cbad77b7f98a0f5841933a63
SHA512 9fbb32e99b3a321f5c5ea1c2bea24249ca5b335514f3f6a70342609932a45aab324d71030febbd18b0aa6d63698146a384ba37da17f7a84d4018ab48660d52cc
MD5 SHA1 SHA512

Score

10^/10

djvu discovery persistence ransomware suricata

Malware Config

Extracted

Family

djvu

http://rlrz.org/fhsgtsspen6

Signatures

Detected Djvu ransomware 6 IoCs

resource	yara_rule
behavioral1/memory/976-54-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/976-55-0x0000000000424141-mapping.dmp	family_djvu
behavioral1/memory/1544-56-0x0000000004760000-0x000000000487B000-memory.dmp	family_djvu
behavioral1/memory/976-58-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1672-64-0x0000000000424141-mapping.dmp	family_djvu
behavioral1/memory/1672-66-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu
suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request
suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request
suricata
Downloads MZ/PE file

Executes dropped EXE 6 IoCs

pid	Process
1448	build3.exe
1304	build3.exe
1620	mstsca.exe
1544	mstsca.exe
1816	mstsca.exe
1676	mstsca.exe

Loads dropped DLL 2 IoCs

pid	Process
1672	c81d1895f7472cec079c7f12419feaf0.exe
1672	c81d1895f7472cec079c7f12419feaf0.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
1216	icacls.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-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\9c42df50-9992-445d-bbfe-f8976fdae13f\\c81d1895f7472cec079c7f12419feaf0.exe\" --AutoStart"	c81d1895f7472cec079c7f12419feaf0.exe

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
5	api.2ip.ua
13	api.2ip.ua
4	api.2ip.ua

Suspicious use of SetThreadContext 5 IoCs

description	pid	Process	procid_target
PID 1544 set thread context of 976	1544	c81d1895f7472cec079c7f12419feaf0.exe	27
PID 1944 set thread context of 1672	1944	c81d1895f7472cec079c7f12419feaf0.exe	32
PID 1448 set thread context of 1304	1448	build3.exe	35
PID 1620 set thread context of 1544	1620	mstsca.exe	40
PID 1816 set thread context of 1676	1816	mstsca.exe	46

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 2 IoCs

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

persistence

Scheduled Task

T1053

pid	Process
1076	schtasks.exe
1032	schtasks.exe

Modifies system certificate store 2 TTPs 5 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349	c81d1895f7472cec079c7f12419feaf0.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	c81d1895f7472cec079c7f12419feaf0.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	c81d1895f7472cec079c7f12419feaf0.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349	c81d1895f7472cec079c7f12419feaf0.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	c81d1895f7472cec079c7f12419feaf0.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
976	c81d1895f7472cec079c7f12419feaf0.exe
976	c81d1895f7472cec079c7f12419feaf0.exe
1672	c81d1895f7472cec079c7f12419feaf0.exe
1672	c81d1895f7472cec079c7f12419feaf0.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1544 wrote to memory of 976	1544	c81d1895f7472cec079c7f12419feaf0.exe	27
PID 1544 wrote to memory of 976	1544	c81d1895f7472cec079c7f12419feaf0.exe	27
PID 1544 wrote to memory of 976	1544	c81d1895f7472cec079c7f12419feaf0.exe	27
PID 1544 wrote to memory of 976	1544	c81d1895f7472cec079c7f12419feaf0.exe	27
PID 1544 wrote to memory of 976	1544	c81d1895f7472cec079c7f12419feaf0.exe	27
PID 1544 wrote to memory of 976	1544	c81d1895f7472cec079c7f12419feaf0.exe	27
PID 1544 wrote to memory of 976	1544	c81d1895f7472cec079c7f12419feaf0.exe	27
PID 1544 wrote to memory of 976	1544	c81d1895f7472cec079c7f12419feaf0.exe	27
PID 1544 wrote to memory of 976	1544	c81d1895f7472cec079c7f12419feaf0.exe	27
PID 1544 wrote to memory of 976	1544	c81d1895f7472cec079c7f12419feaf0.exe	27
PID 1544 wrote to memory of 976	1544	c81d1895f7472cec079c7f12419feaf0.exe	27
PID 976 wrote to memory of 1216	976	c81d1895f7472cec079c7f12419feaf0.exe	30
PID 976 wrote to memory of 1216	976	c81d1895f7472cec079c7f12419feaf0.exe	30
PID 976 wrote to memory of 1216	976	c81d1895f7472cec079c7f12419feaf0.exe	30
PID 976 wrote to memory of 1216	976	c81d1895f7472cec079c7f12419feaf0.exe	30
PID 976 wrote to memory of 1944	976	c81d1895f7472cec079c7f12419feaf0.exe	31
PID 976 wrote to memory of 1944	976	c81d1895f7472cec079c7f12419feaf0.exe	31
PID 976 wrote to memory of 1944	976	c81d1895f7472cec079c7f12419feaf0.exe	31
PID 976 wrote to memory of 1944	976	c81d1895f7472cec079c7f12419feaf0.exe	31
PID 1944 wrote to memory of 1672	1944	c81d1895f7472cec079c7f12419feaf0.exe	32
PID 1944 wrote to memory of 1672	1944	c81d1895f7472cec079c7f12419feaf0.exe	32
PID 1944 wrote to memory of 1672	1944	c81d1895f7472cec079c7f12419feaf0.exe	32
PID 1944 wrote to memory of 1672	1944	c81d1895f7472cec079c7f12419feaf0.exe	32
PID 1944 wrote to memory of 1672	1944	c81d1895f7472cec079c7f12419feaf0.exe	32
PID 1944 wrote to memory of 1672	1944	c81d1895f7472cec079c7f12419feaf0.exe	32
PID 1944 wrote to memory of 1672	1944	c81d1895f7472cec079c7f12419feaf0.exe	32
PID 1944 wrote to memory of 1672	1944	c81d1895f7472cec079c7f12419feaf0.exe	32
PID 1944 wrote to memory of 1672	1944	c81d1895f7472cec079c7f12419feaf0.exe	32
PID 1944 wrote to memory of 1672	1944	c81d1895f7472cec079c7f12419feaf0.exe	32
PID 1944 wrote to memory of 1672	1944	c81d1895f7472cec079c7f12419feaf0.exe	32
PID 1672 wrote to memory of 1448	1672	c81d1895f7472cec079c7f12419feaf0.exe	34
PID 1672 wrote to memory of 1448	1672	c81d1895f7472cec079c7f12419feaf0.exe	34
PID 1672 wrote to memory of 1448	1672	c81d1895f7472cec079c7f12419feaf0.exe	34
PID 1672 wrote to memory of 1448	1672	c81d1895f7472cec079c7f12419feaf0.exe	34
PID 1448 wrote to memory of 1304	1448	build3.exe	35
PID 1448 wrote to memory of 1304	1448	build3.exe	35
PID 1448 wrote to memory of 1304	1448	build3.exe	35
PID 1448 wrote to memory of 1304	1448	build3.exe	35
PID 1448 wrote to memory of 1304	1448	build3.exe	35
PID 1448 wrote to memory of 1304	1448	build3.exe	35
PID 1448 wrote to memory of 1304	1448	build3.exe	35
PID 1448 wrote to memory of 1304	1448	build3.exe	35
PID 1448 wrote to memory of 1304	1448	build3.exe	35
PID 1448 wrote to memory of 1304	1448	build3.exe	35
PID 1304 wrote to memory of 1076	1304	build3.exe	36
PID 1304 wrote to memory of 1076	1304	build3.exe	36
PID 1304 wrote to memory of 1076	1304	build3.exe	36
PID 1304 wrote to memory of 1076	1304	build3.exe	36
PID 764 wrote to memory of 1620	764	taskeng.exe	39
PID 764 wrote to memory of 1620	764	taskeng.exe	39
PID 764 wrote to memory of 1620	764	taskeng.exe	39
PID 764 wrote to memory of 1620	764	taskeng.exe	39
PID 1620 wrote to memory of 1544	1620	mstsca.exe	40
PID 1620 wrote to memory of 1544	1620	mstsca.exe	40
PID 1620 wrote to memory of 1544	1620	mstsca.exe	40
PID 1620 wrote to memory of 1544	1620	mstsca.exe	40
PID 1620 wrote to memory of 1544	1620	mstsca.exe	40
PID 1620 wrote to memory of 1544	1620	mstsca.exe	40
PID 1620 wrote to memory of 1544	1620	mstsca.exe	40
PID 1620 wrote to memory of 1544	1620	mstsca.exe	40
PID 1620 wrote to memory of 1544	1620	mstsca.exe	40
PID 1620 wrote to memory of 1544	1620	mstsca.exe	40
PID 1544 wrote to memory of 1032	1544	mstsca.exe	41
PID 1544 wrote to memory of 1032	1544	mstsca.exe	41

C:\Users\Admin\AppData\Local\Temp\c81d1895f7472cec079c7f12419feaf0.exe
"C:\Users\Admin\AppData\Local\Temp\c81d1895f7472cec079c7f12419feaf0.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1544
- C:\Users\Admin\AppData\Local\Temp\c81d1895f7472cec079c7f12419feaf0.exe
  "C:\Users\Admin\AppData\Local\Temp\c81d1895f7472cec079c7f12419feaf0.exe"
  2⤵
  - Adds Run key to start application
  - Modifies system certificate store
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:976
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\9c42df50-9992-445d-bbfe-f8976fdae13f" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:1216
- - C:\Users\Admin\AppData\Local\Temp\c81d1895f7472cec079c7f12419feaf0.exe
    "C:\Users\Admin\AppData\Local\Temp\c81d1895f7472cec079c7f12419feaf0.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1944
  - - C:\Users\Admin\AppData\Local\Temp\c81d1895f7472cec079c7f12419feaf0.exe
      "C:\Users\Admin\AppData\Local\Temp\c81d1895f7472cec079c7f12419feaf0.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Loads dropped DLL
      Modifies system certificate store
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:1672
    - - C:\Users\Admin\AppData\Local\16bdb65c-b1d4-4d29-beca-53b86c5f27e9\build3.exe
        
        "C:\Users\Admin\AppData\Local\16bdb65c-b1d4-4d29-beca-53b86c5f27e9\build3.exe"
        5⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        Suspicious use of WriteProcessMemory
        
        PID:1448
      - C:\Users\Admin\AppData\Local\16bdb65c-b1d4-4d29-beca-53b86c5f27e9\build3.exe
        
        "C:\Users\Admin\AppData\Local\16bdb65c-b1d4-4d29-beca-53b86c5f27e9\build3.exe"
        6⤵
        Executes dropped EXE
        Suspicious use of WriteProcessMemory
        
        PID:1304
        
        C:\Windows\SysWOW64\schtasks.exe
        
        /C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
        7⤵
        Creates scheduled task(s)
        
        PID:1076

C:\Windows\system32\taskeng.exe
taskeng.exe {4673ECB9-B205-4104-A28C-C263B8D968F0} S-1-5-21-3456797065-1076791440-4146276586-1000:JZCKHXIN\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:764
- C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
  C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1620
- - C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    PID:1544
  - - C:\Windows\SysWOW64\schtasks.exe
      /C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
      4⤵
      Creates scheduled task(s)
      PID:1032
- C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
  C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  PID:1816
- - C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    3⤵
    - Executes dropped EXE
    PID:1676

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

File and Directory Permissions Modification

T1222

Install Root Certificate

T1130

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/976-58-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/976-57-0x00000000751D1000-0x00000000751D3000-memory.dmp

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memory/976-54-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/1304-85-0x0000000000400000-0x0000000000406000-memory.dmp

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memory/1304-79-0x0000000000400000-0x0000000000406000-memory.dmp

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memory/1448-84-0x00000000001C0000-0x00000000001C4000-memory.dmp

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memory/1448-77-0x000000000030D000-0x000000000031E000-memory.dmp

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memory/1544-56-0x0000000004760000-0x000000000487B000-memory.dmp

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memory/1544-53-0x00000000046C0000-0x0000000004751000-memory.dmp

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memory/1620-89-0x00000000032ED000-0x00000000032FE000-memory.dmp

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memory/1672-66-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/1816-97-0x00000000002CD000-0x00000000002DE000-memory.dmp

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memory/1944-62-0x0000000000310000-0x00000000003A1000-memory.dmp

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