djvu | 417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088

General

Target

JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe
Size

767KB
MD5

e16c6471cf73ccda4e5bcc0da7f6059d
SHA1

1b01d1b56f2211fc97de796bd67a1b23162394ff
SHA256

417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088
SHA512

44ce9e11e0de0386ae108bdd78c63ca461248ed14fdc100c8d0af963626a7bd7e0521a8a17184b4cafb3abe6d600c9f42c66c07f7e9e0c56f2530db3b857b091
SSDEEP

12288:LClcVJ68NFGrukos2wihYDvIb9Z7oYRSuHcXwv79GzCppNB+/IPGWnnYa7kbPXdY:zVZEwj5YDQLUxXwvAC3u/IPGWnYacPXP

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

http://fuyt.org/fhsgtsspen6/get.php

Attributes

extension
.nuhb
offline_id
PfLhykvDxmCghCq8peuxBtQ3c0QBuANi8WUkuet1
payload_url
http://zerit.top/dl/build2.exe

http://fuyt.org/files/1/build3.exe
ransomnote
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rsa_pubkey.plain

Signatures

Detected Djvu ransomware 9 IoCs

resource	yara_rule
behavioral2/memory/3444-2-0x0000000002430000-0x000000000254B000-memory.dmp	family_djvu
behavioral2/memory/3796-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3796-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3796-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3796-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3796-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1196-25-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1196-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1196-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu
Djvu family
djvu

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
4400	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\fe278ac4-815c-49ce-bfc5-00ca6d1dc6e3\\JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe\" --AutoStart"	JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe

Looks up external IP address via web service 2 IoCs

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

flow	ioc
3	api.2ip.ua
6	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3444 set thread context of 3796	3444	JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe	84
PID 3888 set thread context of 1196	3888	JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe	88

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4460	1196	WerFault.exe	88

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3796	JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe
3796	JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 3444 wrote to memory of 3796	3444	JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe	84
PID 3444 wrote to memory of 3796	3444	JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe	84
PID 3444 wrote to memory of 3796	3444	JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe	84
PID 3444 wrote to memory of 3796	3444	JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe	84
PID 3444 wrote to memory of 3796	3444	JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe	84
PID 3444 wrote to memory of 3796	3444	JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe	84
PID 3444 wrote to memory of 3796	3444	JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe	84
PID 3444 wrote to memory of 3796	3444	JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe	84
PID 3444 wrote to memory of 3796	3444	JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe	84
PID 3444 wrote to memory of 3796	3444	JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe	84
PID 3796 wrote to memory of 4400	3796	JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe	85
PID 3796 wrote to memory of 4400	3796	JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe	85
PID 3796 wrote to memory of 4400	3796	JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe	85
PID 3796 wrote to memory of 3888	3796	JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe	86
PID 3796 wrote to memory of 3888	3796	JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe	86
PID 3796 wrote to memory of 3888	3796	JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe	86
PID 3888 wrote to memory of 1196	3888	JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe	88
PID 3888 wrote to memory of 1196	3888	JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe	88
PID 3888 wrote to memory of 1196	3888	JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe	88
PID 3888 wrote to memory of 1196	3888	JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe	88
PID 3888 wrote to memory of 1196	3888	JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe	88
PID 3888 wrote to memory of 1196	3888	JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe	88
PID 3888 wrote to memory of 1196	3888	JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe	88
PID 3888 wrote to memory of 1196	3888	JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe	88
PID 3888 wrote to memory of 1196	3888	JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe	88
PID 3888 wrote to memory of 1196	3888	JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe	88

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3444
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3796
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\fe278ac4-815c-49ce-bfc5-00ca6d1dc6e3" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:4400
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3888
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      PID:1196
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1196 -s 584
        5⤵
        Program crash
        
        PID:4460

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1196 -ip 1196
1⤵
PID:2396

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

File and Directory Permissions Modification

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\fe278ac4-815c-49ce-bfc5-00ca6d1dc6e3\JaffaCakes118_417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088.exe

Filesize
767KB

MD5
e16c6471cf73ccda4e5bcc0da7f6059d

SHA1
1b01d1b56f2211fc97de796bd67a1b23162394ff

SHA256
417bb5ae55f1805a79dbc63fffc5ce5ffc7667559ccdf014fbd8aedfc489f088

SHA512
44ce9e11e0de0386ae108bdd78c63ca461248ed14fdc100c8d0af963626a7bd7e0521a8a17184b4cafb3abe6d600c9f42c66c07f7e9e0c56f2530db3b857b091

Download Submit
memory/1196-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1196-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1196-25-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3444-2-0x0000000002430000-0x000000000254B000-memory.dmp

Filesize
1.1MB

Download
memory/3444-1-0x00000000022A0000-0x000000000233F000-memory.dmp

Filesize
636KB

Download
memory/3796-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3796-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3796-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3796-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3796-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3888-19-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/3888-23-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads