djvu | 06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73

General

Target

JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe
Size

761KB
MD5

8dee7186494193216fc9e6e69db7fa5b
SHA1

d520cd4f42f5596d92d7dfbd0cf99659550c89a4
SHA256

06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73
SHA512

a96d93bb70261fb969cedf460066e619c01aca3c6cadc518e826d47c42e23d2283fda038ad7e6f9452b6408c59149528a78cb929b2a643353fe360d9562f97b4
SSDEEP

12288:ihYXCfh2ccLo9E7HrFqqsGNwh67WICfgbmgxMaLWQ/VSN422K0KnK:FXCCLrUINwg7WICgbmU9NSNRJK

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.dmay
offline_id
Xe4NOamOTHZrARTiL9dfVzAylFrEWLGGbr2dngt1
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/4180-2-0x0000000002240000-0x000000000235B000-memory.dmp	family_djvu
behavioral2/memory/4248-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4248-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4248-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4248-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4248-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4192-23-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4192-25-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4192-21-0x0000000000400000-0x0000000000537000-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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
4628	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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\fe37e1f1-134a-463e-a069-6225e0178b94\\JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe\" --AutoStart"	JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.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
11	api.2ip.ua
10	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4180 set thread context of 4248	4180	JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe	83
PID 2376 set thread context of 4192	2376	JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe	89

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
932	4192	WerFault.exe	89

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_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4248	JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe
4248	JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 4180 wrote to memory of 4248	4180	JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe	83
PID 4180 wrote to memory of 4248	4180	JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe	83
PID 4180 wrote to memory of 4248	4180	JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe	83
PID 4180 wrote to memory of 4248	4180	JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe	83
PID 4180 wrote to memory of 4248	4180	JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe	83
PID 4180 wrote to memory of 4248	4180	JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe	83
PID 4180 wrote to memory of 4248	4180	JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe	83
PID 4180 wrote to memory of 4248	4180	JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe	83
PID 4180 wrote to memory of 4248	4180	JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe	83
PID 4180 wrote to memory of 4248	4180	JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe	83
PID 4248 wrote to memory of 4628	4248	JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe	84
PID 4248 wrote to memory of 4628	4248	JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe	84
PID 4248 wrote to memory of 4628	4248	JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe	84
PID 4248 wrote to memory of 2376	4248	JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe	86
PID 4248 wrote to memory of 2376	4248	JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe	86
PID 4248 wrote to memory of 2376	4248	JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe	86
PID 2376 wrote to memory of 4192	2376	JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe	89
PID 2376 wrote to memory of 4192	2376	JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe	89
PID 2376 wrote to memory of 4192	2376	JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe	89
PID 2376 wrote to memory of 4192	2376	JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe	89
PID 2376 wrote to memory of 4192	2376	JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe	89
PID 2376 wrote to memory of 4192	2376	JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe	89
PID 2376 wrote to memory of 4192	2376	JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe	89
PID 2376 wrote to memory of 4192	2376	JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe	89
PID 2376 wrote to memory of 4192	2376	JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe	89
PID 2376 wrote to memory of 4192	2376	JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe	89

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4180
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.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:4248
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\fe37e1f1-134a-463e-a069-6225e0178b94" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:4628
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2376
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      PID:4192
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4192 -s 572
        5⤵
        Program crash
        
        PID:932

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4192 -ip 4192
1⤵
PID:4584

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\fe37e1f1-134a-463e-a069-6225e0178b94\JaffaCakes118_06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73.exe

Filesize
761KB

MD5
8dee7186494193216fc9e6e69db7fa5b

SHA1
d520cd4f42f5596d92d7dfbd0cf99659550c89a4

SHA256
06ee0350847c8e7d7c5006aa267b6047bc824a8d758a167a08f63e58c92d8d73

SHA512
a96d93bb70261fb969cedf460066e619c01aca3c6cadc518e826d47c42e23d2283fda038ad7e6f9452b6408c59149528a78cb929b2a643353fe360d9562f97b4

Download Submit
memory/2376-22-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/2376-19-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/4180-2-0x0000000002240000-0x000000000235B000-memory.dmp

Filesize
1.1MB

Download
memory/4180-1-0x0000000002160000-0x0000000002202000-memory.dmp

Filesize
648KB

Download
memory/4192-23-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4192-25-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4192-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4248-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4248-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4248-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4248-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4248-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads