djvu | 7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794

General

Target

JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe
Size

767KB
MD5

80a5d8f634257cbfeb6ce7c8bcdd4bac
SHA1

c2673b315213ce1dd9b1ace0cb27e185b7ea3e11
SHA256

7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794
SHA512

247a99cc29122e2e12b0fc0669b10bbb2860db0ca0e1f70c33384e6135a4835eb287a3b8aa039a8027810de174768d21b942a5a88f60fbe7768f0a380dafa697
SSDEEP

12288:DkQBhhuIw/VJM0Kkt2w0ILHrIGfHkV5bOfNsRlojub6w:4kEjuXkvL8GfETOiRlo6b6w

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.ghas
offline_id
miqhSGmGE63yWs53FTz0fnp8eCARpnaYE3O3p2t1
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-0SLhZxAjRX 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: 0445JIjdm

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 18 IoCs

resource	yara_rule
behavioral2/memory/440-2-0x00000000023E0000-0x00000000024FB000-memory.dmp	family_djvu
behavioral2/memory/2216-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2216-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2216-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2216-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2216-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4304-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4304-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4304-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4304-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4304-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4304-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4304-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4304-44-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4304-47-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4304-46-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4304-48-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4304-49-0x0000000000400000-0x0000000000537000-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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2556	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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\38a101be-376e-4520-92c8-fc457f320aba\\JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe\" --AutoStart"	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.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
6	api.2ip.ua
8	api.2ip.ua
21	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 440 set thread context of 2216	440	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	82
PID 4992 set thread context of 4304	4992	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.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_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2216	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe
2216	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe
4304	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe
4304	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 440 wrote to memory of 2216	440	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	82
PID 440 wrote to memory of 2216	440	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	82
PID 440 wrote to memory of 2216	440	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	82
PID 440 wrote to memory of 2216	440	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	82
PID 440 wrote to memory of 2216	440	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	82
PID 440 wrote to memory of 2216	440	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	82
PID 440 wrote to memory of 2216	440	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	82
PID 440 wrote to memory of 2216	440	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	82
PID 440 wrote to memory of 2216	440	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	82
PID 440 wrote to memory of 2216	440	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	82
PID 2216 wrote to memory of 2556	2216	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	83
PID 2216 wrote to memory of 2556	2216	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	83
PID 2216 wrote to memory of 2556	2216	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	83
PID 2216 wrote to memory of 4992	2216	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	84
PID 2216 wrote to memory of 4992	2216	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	84
PID 2216 wrote to memory of 4992	2216	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	84
PID 4992 wrote to memory of 4304	4992	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	86
PID 4992 wrote to memory of 4304	4992	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	86
PID 4992 wrote to memory of 4304	4992	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	86
PID 4992 wrote to memory of 4304	4992	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	86
PID 4992 wrote to memory of 4304	4992	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	86
PID 4992 wrote to memory of 4304	4992	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	86
PID 4992 wrote to memory of 4304	4992	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	86
PID 4992 wrote to memory of 4304	4992	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	86
PID 4992 wrote to memory of 4304	4992	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	86
PID 4992 wrote to memory of 4304	4992	JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe	86

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:440
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.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:2216
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\38a101be-376e-4520-92c8-fc457f320aba" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2556
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4992
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:4304

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
a29a5636aa4295e71f791d2892cbea1d

SHA1
300b2606c379e02fcc3a7ef18301c18b8a96f37f

SHA256
3804f543860a18630a04c779e0f0124c1540cfcd5878df8879ca090b9a05a3f1

SHA512
5b23508a9e2a83ff98ef985174ffa8216e2ebc22687e7a827960f8a6f55bca8ea4f4fa1b24f8a1552dc1f041b5cb13d04e55eeccb37067656f37be40be1bf7a0

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

Filesize
170B

MD5
700037fe9a5b315cb22103ea83a616c9

SHA1
8d946eda0370a827de5a4508511b17bd1cd8a24b

SHA256
fcbfed204ba9a347c75d36a276e43a642d708224bde02fddf69aaec64e09256e

SHA512
59552e32a44aa9fadd315c6a927acc173e5ccde3f1129c9cbc4e1cba7924c1ac52875f6dd1609600350b332c298b1adf206e07b4ba773c7ed0ebb2998e1a6e0f

Download Submit
C:\Users\Admin\AppData\Local\38a101be-376e-4520-92c8-fc457f320aba\JaffaCakes118_7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794.exe

Filesize
767KB

MD5
80a5d8f634257cbfeb6ce7c8bcdd4bac

SHA1
c2673b315213ce1dd9b1ace0cb27e185b7ea3e11

SHA256
7cf2b484f08770092a1ad648e8239e358db8a96f4d42d3d9ed14fca384591794

SHA512
247a99cc29122e2e12b0fc0669b10bbb2860db0ca0e1f70c33384e6135a4835eb287a3b8aa039a8027810de174768d21b942a5a88f60fbe7768f0a380dafa697

Download Submit
memory/440-2-0x00000000023E0000-0x00000000024FB000-memory.dmp

Filesize
1.1MB

Download
memory/440-1-0x0000000002340000-0x00000000023D3000-memory.dmp

Filesize
588KB

Download
memory/2216-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2216-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2216-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2216-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2216-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4304-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4304-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4304-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4304-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4304-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4304-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4304-49-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4304-48-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4304-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4304-44-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4304-47-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4304-46-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4992-23-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4992-19-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads