djvu | bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9

General

Target

JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe
Size

838KB
MD5

361d9b1bee71debf8d966051c0369a9a
SHA1

757949978d35abf2d24b77a4497e19a02a999307
SHA256

bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9
SHA512

2c859936590be2be37e3460378d8d832dec16add1ce87bb70c9cdf84e080fc0bde1c4444121890a32346ed56384060171e06aa208c27d0a7027aa017af23ef83
SSDEEP

12288:Y/IZf5Of+cXoWFfvSn8tcJtkW5lvL1QjSLAPv8SzZtZaAkmEjPR5y7j:Y/0ROfQ0tGsW5hL64u8SzHiHLR5q

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
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-FglTTmgzZT 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: 0440tOjkfd

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 18 IoCs

resource	yara_rule
behavioral2/memory/5088-2-0x0000000002200000-0x000000000231B000-memory.dmp	family_djvu
behavioral2/memory/2036-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2036-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2036-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2036-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2036-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2944-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2944-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2944-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2944-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2944-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2944-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2944-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2944-44-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2944-46-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2944-47-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2944-48-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2944-49-0x0000000000400000-0x0000000000537000-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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
116	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-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\40c00c89-66e9-41f7-b57d-56bfd481b5f0\\JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe\" --AutoStart"	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.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
13	api.2ip.ua
21	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 5088 set thread context of 2036	5088	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	83
PID 2144 set thread context of 2944	2144	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	88

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	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2036	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe
2036	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe
2944	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe
2944	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 5088 wrote to memory of 2036	5088	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	83
PID 5088 wrote to memory of 2036	5088	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	83
PID 5088 wrote to memory of 2036	5088	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	83
PID 5088 wrote to memory of 2036	5088	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	83
PID 5088 wrote to memory of 2036	5088	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	83
PID 5088 wrote to memory of 2036	5088	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	83
PID 5088 wrote to memory of 2036	5088	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	83
PID 5088 wrote to memory of 2036	5088	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	83
PID 5088 wrote to memory of 2036	5088	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	83
PID 5088 wrote to memory of 2036	5088	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	83
PID 2036 wrote to memory of 116	2036	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	84
PID 2036 wrote to memory of 116	2036	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	84
PID 2036 wrote to memory of 116	2036	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	84
PID 2036 wrote to memory of 2144	2036	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	85
PID 2036 wrote to memory of 2144	2036	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	85
PID 2036 wrote to memory of 2144	2036	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	85
PID 2144 wrote to memory of 2944	2144	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	88
PID 2144 wrote to memory of 2944	2144	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	88
PID 2144 wrote to memory of 2944	2144	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	88
PID 2144 wrote to memory of 2944	2144	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	88
PID 2144 wrote to memory of 2944	2144	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	88
PID 2144 wrote to memory of 2944	2144	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	88
PID 2144 wrote to memory of 2944	2144	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	88
PID 2144 wrote to memory of 2944	2144	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	88
PID 2144 wrote to memory of 2944	2144	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	88
PID 2144 wrote to memory of 2944	2144	JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe	88

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5088
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.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:2036
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\40c00c89-66e9-41f7-b57d-56bfd481b5f0" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:116
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2144
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2944

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
cc36580cfc6efce67782656ca4d9d400

SHA1
4d8d3b44edbc1d4d70b4e8330f2338002d43cf11

SHA256
afa262312eb6443352b67a7cd9b856ff83a2fbfb56149cfd32a9b0f4e433a5d2

SHA512
c0d694b5b280418c17ce500aaf6037104a84bfe5a9b868b6c39415659be9dd75c22bcf6b3ff5da7a7f0253cdb41405c014811fe2504c3d65030b411f81a883dc

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

Filesize
170B

MD5
6705d45e00093d3493ca9854220f7b11

SHA1
097fc167c50fc4962cfcc9c4c3b4e64b8b7abd32

SHA256
e1c1c34a83ca8aa096d476ef0e11418d4d2e18f13791e1c4890b1751560d88aa

SHA512
a7e7e29608c68d1f17c5d153f35f2a319c862f0ba750c787d82e3c31aadc00b2aa7147093f120479d59dca31bea9064c7ed66dcedf8090e89ca62b76841d37c0

Download Submit
C:\Users\Admin\AppData\Local\40c00c89-66e9-41f7-b57d-56bfd481b5f0\JaffaCakes118_bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9.exe

Filesize
838KB

MD5
361d9b1bee71debf8d966051c0369a9a

SHA1
757949978d35abf2d24b77a4497e19a02a999307

SHA256
bb4ef0f38dc73163c5284ea31437abdf17130321883d04cfd04c041efc922af9

SHA512
2c859936590be2be37e3460378d8d832dec16add1ce87bb70c9cdf84e080fc0bde1c4444121890a32346ed56384060171e06aa208c27d0a7027aa017af23ef83

Download Submit
memory/2036-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2036-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2036-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2036-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2036-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2144-19-0x0000000000400000-0x0000000000516000-memory.dmp

Filesize
1.1MB

Download
memory/2144-23-0x0000000000400000-0x0000000000516000-memory.dmp

Filesize
1.1MB

Download
memory/2944-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2944-46-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2944-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2944-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2944-49-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2944-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2944-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2944-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2944-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2944-44-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2944-48-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2944-47-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5088-1-0x00000000005E0000-0x0000000000672000-memory.dmp

Filesize
584KB

Download
memory/5088-2-0x0000000002200000-0x000000000231B000-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