djvu | 94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4

General

Target

JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe
Size

838KB
MD5

0e6090d3de0892be622e9f711a823a6c
SHA1

a428b9f580fc61b8bb3baae2d3cbe687e401915f
SHA256

94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4
SHA512

b2a9eff9f89296ad698cee39776abbe477260d5617367d53845ae15e42e4aec5c4d6ab0575fee6022899e636a2e8e95ad24ff4506373d2df6f9f011a0c60b4c6
SSDEEP

24576:4K/PNsdtaG15O2r/UAbyuib3Jf4LgFWFZRlB:bGtT5LrLibZ4LgFWzR

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.nuhb
offline_id
PfLhykvDxmCghCq8peuxBtQ3c0QBuANi8WUkuet1
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-c565B1ILoZ 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: 0453Jbdio

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 18 IoCs

resource	yara_rule
behavioral2/memory/1700-2-0x0000000002190000-0x00000000022AB000-memory.dmp	family_djvu
behavioral2/memory/4916-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4916-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4916-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4916-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4916-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3976-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3976-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3976-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3976-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3976-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3976-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3976-39-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3976-42-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3976-44-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3976-45-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3976-46-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3976-47-0x0000000000400000-0x0000000000537000-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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
1844	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-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\60e895e0-cd07-4237-a5bc-80ac3e4b096c\\JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe\" --AutoStart"	JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.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
11	api.2ip.ua
12	api.2ip.ua
19	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1700 set thread context of 4916	1700	JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe	83
PID 1928 set thread context of 3976	1928	JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.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_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4916	JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe
4916	JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe
3976	JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe
3976	JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1700 wrote to memory of 4916	1700	JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe	83
PID 1700 wrote to memory of 4916	1700	JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe	83
PID 1700 wrote to memory of 4916	1700	JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe	83
PID 1700 wrote to memory of 4916	1700	JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe	83
PID 1700 wrote to memory of 4916	1700	JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe	83
PID 1700 wrote to memory of 4916	1700	JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe	83
PID 1700 wrote to memory of 4916	1700	JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe	83
PID 1700 wrote to memory of 4916	1700	JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe	83
PID 1700 wrote to memory of 4916	1700	JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe	83
PID 1700 wrote to memory of 4916	1700	JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe	83
PID 4916 wrote to memory of 1844	4916	JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe	84
PID 4916 wrote to memory of 1844	4916	JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe	84
PID 4916 wrote to memory of 1844	4916	JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe	84
PID 4916 wrote to memory of 1928	4916	JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe	85
PID 4916 wrote to memory of 1928	4916	JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe	85
PID 4916 wrote to memory of 1928	4916	JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe	85
PID 1928 wrote to memory of 3976	1928	JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe	88
PID 1928 wrote to memory of 3976	1928	JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe	88
PID 1928 wrote to memory of 3976	1928	JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe	88
PID 1928 wrote to memory of 3976	1928	JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe	88
PID 1928 wrote to memory of 3976	1928	JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe	88
PID 1928 wrote to memory of 3976	1928	JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe	88
PID 1928 wrote to memory of 3976	1928	JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe	88
PID 1928 wrote to memory of 3976	1928	JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe	88
PID 1928 wrote to memory of 3976	1928	JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe	88
PID 1928 wrote to memory of 3976	1928	JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe	88

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1700
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.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:4916
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\60e895e0-cd07-4237-a5bc-80ac3e4b096c" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:1844
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1928
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:3976

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
57036d5a8d8843bc6f5e6f661221587a

SHA1
d58b4206a732abaf2f825c121b4a9678692b13de

SHA256
a9c05ee6c0549b1960b13716e54c9d79cc3464b8f127fbc48cf5ec58c99cb86a

SHA512
a818479ca830f57e06a40b85b3a095a36315ce07d232614615fbf2c44091bc776d4eb4af87d65908f237ef7d60a1f97fb305cc8aeb109c402d98f65e484e8ac8

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

Filesize
170B

MD5
1a2165964ddf320772aeab34c36f2ce5

SHA1
432fc5a71e03e63b010398965ad4041309103aab

SHA256
c9a2f4941844bea9d26c6a10a3888d5042fd67a9860bb1fe9413c4703c8ba334

SHA512
d8c6af5d50284ceab3050e8172a117286134fac0ca64d017fdb6f71f5874afee6ac88cf5f0b0121c26881ee6e95fc58738946680d4bdaf93908db6e8d294ae09

Download Submit
C:\Users\Admin\AppData\Local\60e895e0-cd07-4237-a5bc-80ac3e4b096c\JaffaCakes118_94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4.exe

Filesize
838KB

MD5
0e6090d3de0892be622e9f711a823a6c

SHA1
a428b9f580fc61b8bb3baae2d3cbe687e401915f

SHA256
94968c49b044a442bb0a9188106b50716a0f6888275fcb6a16171bba37f8f0d4

SHA512
b2a9eff9f89296ad698cee39776abbe477260d5617367d53845ae15e42e4aec5c4d6ab0575fee6022899e636a2e8e95ad24ff4506373d2df6f9f011a0c60b4c6

Download Submit
memory/1700-2-0x0000000002190000-0x00000000022AB000-memory.dmp

Filesize
1.1MB

Download
memory/1700-1-0x00000000020F0000-0x0000000002183000-memory.dmp

Filesize
588KB

Download
memory/1928-23-0x0000000000400000-0x00000000004DD000-memory.dmp

Filesize
884KB

Download
memory/1928-19-0x0000000000400000-0x00000000004DD000-memory.dmp

Filesize
884KB

Download
memory/3976-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3976-44-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3976-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3976-47-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3976-46-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3976-45-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3976-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3976-42-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3976-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3976-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3976-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3976-39-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4916-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4916-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4916-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4916-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4916-17-0x0000000000400000-0x0000000000537000-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