djvu | 377b341ab6d8a58238c711bbc541e24967860d203485617ff1a1917e6a21d072

General

Target

JaffaCakes118_377b341ab6d8a58238c711bbc541e24967860d203485617ff1a1917e6a21d072.exe
Size

1.5MB
MD5

2b190db0a58b22bb86c952bc69078305
SHA1

3dd399bc3598f80f3206b096b548d40c04946b53
SHA256

377b341ab6d8a58238c711bbc541e24967860d203485617ff1a1917e6a21d072
SHA512

dddf68d5ba3b669b53ce4480b5a5e05bc378c199789f756ae88fcb45eb0471602fdb0e73959603666659640131eda89b12f1a4af41e37973986fd5db8f123a55
SSDEEP

49152:/gwV+SDJgAP4m827VLkzjF0a9oVgzjFBTJfFTJfU:/gjSDJ3P4GJ

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

http://vnjt.top/lancer/getm.php

Attributes

extension
.enfp
offline_id
gy4HLd4Nu8hMhno9C8AEpO10FUGAYGVNmXbgsUt1
payload_url
http://vnjt.top/files/cost/updatewin1.exe

http://vnjt.top/files/cost/updatewin2.exe

http://vnjt.top/files/cost/updatewin.exe

http://vnjt.top/files/cost/3.exe

http://vnjt.top/files/cost/4.exe

http://vnjt.top/files/cost/5.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-NuEqGxqRg2 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: 0288Widasd

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 9 IoCs

resource	yara_rule
behavioral2/memory/3128-2-0x0000000002560000-0x000000000267A000-memory.dmp	family_djvu
behavioral2/memory/3128-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3128-14-0x0000000002560000-0x000000000267A000-memory.dmp	family_djvu
behavioral2/memory/3128-15-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3128-13-0x0000000000400000-0x000000000097B000-memory.dmp	family_djvu
behavioral2/memory/3520-17-0x0000000000400000-0x000000000097B000-memory.dmp	family_djvu
behavioral2/memory/3520-22-0x0000000000400000-0x000000000097B000-memory.dmp	family_djvu
behavioral2/memory/3520-26-0x0000000000400000-0x000000000097B000-memory.dmp	family_djvu
behavioral2/memory/3520-27-0x0000000000400000-0x000000000097B000-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_377b341ab6d8a58238c711bbc541e24967860d203485617ff1a1917e6a21d072.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
448	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\\dd63a844-3ded-4016-9b30-c42d0490ae12\\JaffaCakes118_377b341ab6d8a58238c711bbc541e24967860d203485617ff1a1917e6a21d072.exe\" --AutoStart"	JaffaCakes118_377b341ab6d8a58238c711bbc541e24967860d203485617ff1a1917e6a21d072.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
18	api.2ip.ua
11	api.2ip.ua

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
3144	3128	WerFault.exe	82

System Location Discovery: System Language Discovery 1 TTPs 3 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_377b341ab6d8a58238c711bbc541e24967860d203485617ff1a1917e6a21d072.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_377b341ab6d8a58238c711bbc541e24967860d203485617ff1a1917e6a21d072.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3128	JaffaCakes118_377b341ab6d8a58238c711bbc541e24967860d203485617ff1a1917e6a21d072.exe
3128	JaffaCakes118_377b341ab6d8a58238c711bbc541e24967860d203485617ff1a1917e6a21d072.exe
3520	JaffaCakes118_377b341ab6d8a58238c711bbc541e24967860d203485617ff1a1917e6a21d072.exe
3520	JaffaCakes118_377b341ab6d8a58238c711bbc541e24967860d203485617ff1a1917e6a21d072.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3128 wrote to memory of 448	3128	JaffaCakes118_377b341ab6d8a58238c711bbc541e24967860d203485617ff1a1917e6a21d072.exe	83
PID 3128 wrote to memory of 448	3128	JaffaCakes118_377b341ab6d8a58238c711bbc541e24967860d203485617ff1a1917e6a21d072.exe	83
PID 3128 wrote to memory of 448	3128	JaffaCakes118_377b341ab6d8a58238c711bbc541e24967860d203485617ff1a1917e6a21d072.exe	83
PID 3128 wrote to memory of 3520	3128	JaffaCakes118_377b341ab6d8a58238c711bbc541e24967860d203485617ff1a1917e6a21d072.exe	84
PID 3128 wrote to memory of 3520	3128	JaffaCakes118_377b341ab6d8a58238c711bbc541e24967860d203485617ff1a1917e6a21d072.exe	84
PID 3128 wrote to memory of 3520	3128	JaffaCakes118_377b341ab6d8a58238c711bbc541e24967860d203485617ff1a1917e6a21d072.exe	84

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_377b341ab6d8a58238c711bbc541e24967860d203485617ff1a1917e6a21d072.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_377b341ab6d8a58238c711bbc541e24967860d203485617ff1a1917e6a21d072.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3128
- C:\Windows\SysWOW64\icacls.exe
  icacls "C:\Users\Admin\AppData\Local\dd63a844-3ded-4016-9b30-c42d0490ae12" /deny *S-1-1-0:(OI)(CI)(DE,DC)
  2⤵
  - Modifies file permissions
  - System Location Discovery: System Language Discovery
  PID:448
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_377b341ab6d8a58238c711bbc541e24967860d203485617ff1a1917e6a21d072.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_377b341ab6d8a58238c711bbc541e24967860d203485617ff1a1917e6a21d072.exe" --Admin IsNotAutoStart IsNotTask
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:3520
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3128 -s 2092
  2⤵
  - Program crash
  PID:3144

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3128 -ip 3128
1⤵
PID:1944

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
8ba5255acad6b74a153c7650bc337207

SHA1
6be8366727d9347ee0f095003bbdc0cd88bbaacb

SHA256
27ada34c794a3184212184b9e2e43f822a22d5af3c487ee42a58d461f9f0d073

SHA512
bf18f01ee85b379ae5ffb6a16b7d434eb40f1b4c80fd4c2901556628ba90588b71829c9c29beca53ac6d04980c72dde1ffd1e575cbb21deadbc38074226e6bb2

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

Filesize
170B

MD5
5aa3161931bfdca375e2f64db60122de

SHA1
cb78581d466f908a92d15360d4f8c06d7af21f31

SHA256
eba51031808a52ebf115b9446e3959f916b516fc0775e1821b3de613cb454122

SHA512
201c2bf47959b640a7182fda0ff77e50df892028add75657bbaa32f33f1417ef96d7f889bdef15c713f177443b8a5535a659c30e1da9285a984b2998274ac03e

Download Submit
C:\Users\Admin\AppData\Local\dd63a844-3ded-4016-9b30-c42d0490ae12\JaffaCakes118_377b341ab6d8a58238c711bbc541e24967860d203485617ff1a1917e6a21d072.exe

Filesize
1.5MB

MD5
2b190db0a58b22bb86c952bc69078305

SHA1
3dd399bc3598f80f3206b096b548d40c04946b53

SHA256
377b341ab6d8a58238c711bbc541e24967860d203485617ff1a1917e6a21d072

SHA512
dddf68d5ba3b669b53ce4480b5a5e05bc378c199789f756ae88fcb45eb0471602fdb0e73959603666659640131eda89b12f1a4af41e37973986fd5db8f123a55

Download Submit
memory/3128-14-0x0000000002560000-0x000000000267A000-memory.dmp

Filesize
1.1MB

Download
memory/3128-13-0x0000000000400000-0x000000000097B000-memory.dmp

Filesize
5.5MB

Download
memory/3128-15-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3128-1-0x00000000023A0000-0x000000000243A000-memory.dmp

Filesize
616KB

Download
memory/3128-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3128-2-0x0000000002560000-0x000000000267A000-memory.dmp

Filesize
1.1MB

Download
memory/3520-16-0x0000000000400000-0x000000000097B000-memory.dmp

Filesize
5.5MB

Download
memory/3520-17-0x0000000000400000-0x000000000097B000-memory.dmp

Filesize
5.5MB

Download
memory/3520-22-0x0000000000400000-0x000000000097B000-memory.dmp

Filesize
5.5MB

Download
memory/3520-26-0x0000000000400000-0x000000000097B000-memory.dmp

Filesize
5.5MB

Download
memory/3520-27-0x0000000000400000-0x000000000097B000-memory.dmp

Filesize
5.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads