djvu | 6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7

General

Target

JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe
Size

833KB
MD5

879fe8251f7e362c8b786a1a1d03586c
SHA1

2dc5de3cee375f4630e4d70ee371523e93c36f01
SHA256

6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7
SHA512

fc46f174dcde80fe8a4341c778e6dd2d2b7c32cdf8a3cfedc24b88b63dd8ee36d89cae9986d02980ce55c68fa3f282a86d093825ca5fa20bb1879eacadbac70e
SSDEEP

24576:a4OqOuOCUS9cCh+goT9zxRA0EtQflzp9FEitw:aYUe3UgoT9PAbE79FEd

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.gtys
offline_id
qwVQoIsE2xLety0oNWloOilSDuIBXJGK86LM3ot1
payload_url
http://zerit.top/dl/build2.exe

http://fuyt.org/files/1/build3.exe
ransomnote
ATTENTION! Don't worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. You can get and look video overview decrypt tool: https://we.tl/t-fnn5kv33Vv Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0439JIjdm

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 18 IoCs

resource	yara_rule
behavioral2/memory/1120-2-0x0000000002210000-0x000000000232B000-memory.dmp	family_djvu
behavioral2/memory/4540-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4540-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4540-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4540-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4540-19-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4316-26-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4316-23-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4316-25-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4316-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4316-33-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4316-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4316-43-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4316-46-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4316-48-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4316-49-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4316-50-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4316-51-0x0000000000400000-0x0000000000537000-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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
4980	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-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\ddbf9a90-68dc-404e-9b53-cb10084b5e27\\JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe\" --AutoStart"	JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.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
12	api.2ip.ua
20	api.2ip.ua
10	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1120 set thread context of 4540	1120	JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe	82
PID 3184 set thread context of 4316	3184	JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe	86

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

System Information Discovery
T1082

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_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4540	JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe
4540	JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe
4316	JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe
4316	JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1120 wrote to memory of 4540	1120	JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe	82
PID 1120 wrote to memory of 4540	1120	JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe	82
PID 1120 wrote to memory of 4540	1120	JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe	82
PID 1120 wrote to memory of 4540	1120	JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe	82
PID 1120 wrote to memory of 4540	1120	JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe	82
PID 1120 wrote to memory of 4540	1120	JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe	82
PID 1120 wrote to memory of 4540	1120	JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe	82
PID 1120 wrote to memory of 4540	1120	JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe	82
PID 1120 wrote to memory of 4540	1120	JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe	82
PID 1120 wrote to memory of 4540	1120	JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe	82
PID 4540 wrote to memory of 4980	4540	JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe	83
PID 4540 wrote to memory of 4980	4540	JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe	83
PID 4540 wrote to memory of 4980	4540	JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe	83
PID 4540 wrote to memory of 3184	4540	JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe	84
PID 4540 wrote to memory of 3184	4540	JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe	84
PID 4540 wrote to memory of 3184	4540	JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe	84
PID 3184 wrote to memory of 4316	3184	JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe	86
PID 3184 wrote to memory of 4316	3184	JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe	86
PID 3184 wrote to memory of 4316	3184	JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe	86
PID 3184 wrote to memory of 4316	3184	JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe	86
PID 3184 wrote to memory of 4316	3184	JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe	86
PID 3184 wrote to memory of 4316	3184	JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe	86
PID 3184 wrote to memory of 4316	3184	JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe	86
PID 3184 wrote to memory of 4316	3184	JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe	86
PID 3184 wrote to memory of 4316	3184	JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe	86
PID 3184 wrote to memory of 4316	3184	JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe	86

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1120
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.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:4540
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\ddbf9a90-68dc-404e-9b53-cb10084b5e27" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:4980
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3184
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:4316

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\LocalLow\Microsoft\CryptnetUrlCache\Content\8B2B9A00839EED1DFDCCC3BFC2F5DF12

Filesize
1KB

MD5
67e486b2f148a3fca863728242b6273e

SHA1
452a84c183d7ea5b7c015b597e94af8eef66d44a

SHA256
facaf1c3a4bf232abce19a2d534e495b0d3adc7dbe3797d336249aa6f70adcfb

SHA512
d3a37da3bb10a9736dc03e8b2b49baceef5d73c026e2077b8ebc1b786f2c9b2f807e0aa13a5866cf3b3cafd2bc506242ef139c423eaffb050bbb87773e53881e

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B46811C17859FFB409CF0E904A4AA8F8

Filesize
436B

MD5
971c514f84bba0785f80aa1c23edfd79

SHA1
732acea710a87530c6b08ecdf32a110d254a54c8

SHA256
f157ed17fcaf8837fa82f8b69973848c9b10a02636848f995698212a08f31895

SHA512
43dc1425d80e170c645a3e3bb56da8c3acd31bd637329e9e37094ac346ac85434df4edcdbefc05ae00aea33a80a88e2af695997a495611217fe6706075a63c58

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12

Filesize
174B

MD5
828c04331ab9bddaa649aebb9ae3881f

SHA1
72936818fe95f8d60eccb7eccfe4000ef0f8e846

SHA256
949a93b65168fbfcb92c1dac71f8a26418866595c927cba98b62d2d764f4385a

SHA512
c39d98da5f20a1e522e84e773e198f437e9ff986d61751b080e7ca651b8b27fa7f0605ac17c06df72942260c085a12fd5a6e9075afd4d67706bd05b32f47a8a4

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8

Filesize
170B

MD5
ff46fa84fb1ec067a3a6d16d186715ce

SHA1
18d16c572127f08afa36f7e657c4119b5fbf9c9e

SHA256
ab9b453b9be70f6c42e1656a0262f64782317618fe4c97542264be7a81f75b37

SHA512
e4e29ca537ad38838f24664c61a5e5519d68ba55b621ee994d4f8a6830f1fdd771e83efa79c6b8f0ae1da54145b0430b9f87a77ded15484589c99abedd12263e

Download Submit
C:\Users\Admin\AppData\Local\ddbf9a90-68dc-404e-9b53-cb10084b5e27\JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe

Filesize
833KB

MD5
879fe8251f7e362c8b786a1a1d03586c

SHA1
2dc5de3cee375f4630e4d70ee371523e93c36f01

SHA256
6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7

SHA512
fc46f174dcde80fe8a4341c778e6dd2d2b7c32cdf8a3cfedc24b88b63dd8ee36d89cae9986d02980ce55c68fa3f282a86d093825ca5fa20bb1879eacadbac70e

Download Submit
memory/1120-1-0x0000000002170000-0x0000000002204000-memory.dmp

Filesize
592KB

Download
memory/1120-2-0x0000000002210000-0x000000000232B000-memory.dmp

Filesize
1.1MB

Download
memory/3184-24-0x0000000000400000-0x0000000000514000-memory.dmp

Filesize
1.1MB

Download
memory/3184-21-0x0000000000400000-0x0000000000514000-memory.dmp

Filesize
1.1MB

Download
memory/4316-50-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4316-23-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4316-25-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4316-26-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4316-51-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4316-46-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4316-49-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4316-48-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4316-34-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4316-33-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4316-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4316-43-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4540-19-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4540-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4540-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4540-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4540-6-0x0000000000400000-0x0000000000537000-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