djvu | 1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442

General

Target

JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe
Size

769KB
MD5

056d464d213ff65349e6206c800434b2
SHA1

6ebe03e781e95744ba7d19f394eb60f4d8656098
SHA256

1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442
SHA512

eb5f366b288031851d027a3771d6765efc43079d3e9bd19159b620fc4e4f51961d8a418a362f399663e5994c2a216eea07454dfa3bf8afb869b81edfd51cde4f
SSDEEP

24576:FNmRKipSS3cb57RjHMNROH2biWBHzZ+YijBu:FNaNcTjMNRjiWtzZfiM

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

http://fuyt.org/test1/get.php

Attributes

extension
.tuid
offline_id
LgcOIftV0dQfFBQStVNfb8BhHy8tHRPvXwSiFwt1
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/3596-2-0x00000000021F0000-0x000000000230B000-memory.dmp	family_djvu
behavioral2/memory/864-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/864-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/864-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/864-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/864-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3448-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3448-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3448-23-0x0000000000400000-0x0000000000537000-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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2188	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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\55af569e-904c-4d80-b731-c4e3472bf5a6\\JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe\" --AutoStart"	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.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
7	api.2ip.ua
8	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3596 set thread context of 864	3596	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	82
PID 3084 set thread context of 3448	3084	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	86

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
4392	3448	WerFault.exe	86

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	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
864	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe
864	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 3596 wrote to memory of 864	3596	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	82
PID 3596 wrote to memory of 864	3596	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	82
PID 3596 wrote to memory of 864	3596	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	82
PID 3596 wrote to memory of 864	3596	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	82
PID 3596 wrote to memory of 864	3596	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	82
PID 3596 wrote to memory of 864	3596	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	82
PID 3596 wrote to memory of 864	3596	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	82
PID 3596 wrote to memory of 864	3596	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	82
PID 3596 wrote to memory of 864	3596	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	82
PID 3596 wrote to memory of 864	3596	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	82
PID 864 wrote to memory of 2188	864	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	83
PID 864 wrote to memory of 2188	864	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	83
PID 864 wrote to memory of 2188	864	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	83
PID 864 wrote to memory of 3084	864	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	84
PID 864 wrote to memory of 3084	864	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	84
PID 864 wrote to memory of 3084	864	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	84
PID 3084 wrote to memory of 3448	3084	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	86
PID 3084 wrote to memory of 3448	3084	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	86
PID 3084 wrote to memory of 3448	3084	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	86
PID 3084 wrote to memory of 3448	3084	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	86
PID 3084 wrote to memory of 3448	3084	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	86
PID 3084 wrote to memory of 3448	3084	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	86
PID 3084 wrote to memory of 3448	3084	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	86
PID 3084 wrote to memory of 3448	3084	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	86
PID 3084 wrote to memory of 3448	3084	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	86
PID 3084 wrote to memory of 3448	3084	JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe	86

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3596
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.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:864
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\55af569e-904c-4d80-b731-c4e3472bf5a6" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2188
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3084
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      PID:3448
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3448 -s 568
        5⤵
        Program crash
        
        PID:4392

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 3448 -ip 3448
1⤵
PID:1952

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\55af569e-904c-4d80-b731-c4e3472bf5a6\JaffaCakes118_1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442.exe

Filesize
769KB

MD5
056d464d213ff65349e6206c800434b2

SHA1
6ebe03e781e95744ba7d19f394eb60f4d8656098

SHA256
1d6e9ce9167f2c320b55ac275912423799bd6720d638879a69d493c7b5c7f442

SHA512
eb5f366b288031851d027a3771d6765efc43079d3e9bd19159b620fc4e4f51961d8a418a362f399663e5994c2a216eea07454dfa3bf8afb869b81edfd51cde4f

Download Submit
memory/864-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/864-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/864-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/864-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/864-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3084-19-0x0000000000400000-0x00000000004EC000-memory.dmp

Filesize
944KB

Download
memory/3084-25-0x0000000000400000-0x00000000004EC000-memory.dmp

Filesize
944KB

Download
memory/3448-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3448-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3448-23-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3596-1-0x0000000000740000-0x00000000007E0000-memory.dmp

Filesize
640KB

Download
memory/3596-2-0x00000000021F0000-0x000000000230B000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads