djvu | 51279cf0dd0716de867e5bc706ef180f4ff1ed62e56c8a5858565408f41423c5

General

Target

6e07bae0b60897abceaefbdc1219a3d0_JaffaCakes118.exe
Size

803KB
MD5

6e07bae0b60897abceaefbdc1219a3d0
SHA1

dee1b5e1708d6d0a8305f9e133e2f18fa76aaf3e
SHA256

51279cf0dd0716de867e5bc706ef180f4ff1ed62e56c8a5858565408f41423c5
SHA512

37ca7e25842117686358e2724c34fb46e40debd21fe98e24498cd24cec600ec839eef58c2540228c4b99d3aa2a19e7ca4214b3cf9ffe27218d1335939a1d2db5
SSDEEP

12288:lQlYT951Leuf6ExtJvR5HZIPnYhqQs2Nnb7K/qBcYCbEs8k2UJje/qw:lQwrafExh5NhHs07KyBcv9zJCqw

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

http://mopg.top/Asjdi435784ihjk65pen2/get.php

Attributes

extension
.rezm
offline_id
oTNOXYrFxLZ6FFJDHoOj4iFOlC2xJsN3KurV05t1
payload_url
http://mopg.top/files/penelop/updatewin1.exe

http://mopg.top/files/penelop/updatewin2.exe

http://mopg.top/files/penelop/updatewin.exe

http://mopg.top/files/penelop/3.exe

http://mopg.top/files/penelop/4.exe

http://mopg.top/files/penelop/5.exe
ransomnote
ATTENTION! Don't worry, you can return all your files! All your files like photos, 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-yVc390S6cs 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: 0211Asd4a7d6

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 10 IoCs

resource	yara_rule
behavioral1/memory/2072-2-0x0000000006160000-0x000000000627A000-memory.dmp	family_djvu
behavioral1/memory/2072-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2072-23-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2072-22-0x0000000006160000-0x000000000627A000-memory.dmp	family_djvu
behavioral1/memory/2072-21-0x0000000000400000-0x0000000004766000-memory.dmp	family_djvu
behavioral1/memory/2516-37-0x0000000000400000-0x0000000004766000-memory.dmp	family_djvu
behavioral1/memory/2516-38-0x0000000000400000-0x0000000004766000-memory.dmp	family_djvu
behavioral1/memory/2516-41-0x0000000000400000-0x0000000004766000-memory.dmp	family_djvu
behavioral1/memory/1428-62-0x0000000000400000-0x0000000004766000-memory.dmp	family_djvu
behavioral1/memory/2516-399-0x0000000000400000-0x0000000004766000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu
Renames multiple (165) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

Executes dropped EXE 1 IoCs

pid	Process
1428	6e07bae0b60897abceaefbdc1219a3d0_JaffaCakes118.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2408	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-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\5a808118-c264-48f7-8b1d-0773e1a05d8d\\6e07bae0b60897abceaefbdc1219a3d0_JaffaCakes118.exe\" --AutoStart"	6e07bae0b60897abceaefbdc1219a3d0_JaffaCakes118.exe

Looks up external IP address via web service 4 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
17	api.2ip.ua
3	api.2ip.ua
4	api.2ip.ua
9	api.2ip.ua

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2072	6e07bae0b60897abceaefbdc1219a3d0_JaffaCakes118.exe
2516	6e07bae0b60897abceaefbdc1219a3d0_JaffaCakes118.exe
1428	6e07bae0b60897abceaefbdc1219a3d0_JaffaCakes118.exe
1428	6e07bae0b60897abceaefbdc1219a3d0_JaffaCakes118.exe
2516	6e07bae0b60897abceaefbdc1219a3d0_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2072 wrote to memory of 2408	2072	6e07bae0b60897abceaefbdc1219a3d0_JaffaCakes118.exe	28
PID 2072 wrote to memory of 2408	2072	6e07bae0b60897abceaefbdc1219a3d0_JaffaCakes118.exe	28
PID 2072 wrote to memory of 2408	2072	6e07bae0b60897abceaefbdc1219a3d0_JaffaCakes118.exe	28
PID 2072 wrote to memory of 2408	2072	6e07bae0b60897abceaefbdc1219a3d0_JaffaCakes118.exe	28
PID 2072 wrote to memory of 2516	2072	6e07bae0b60897abceaefbdc1219a3d0_JaffaCakes118.exe	29
PID 2072 wrote to memory of 2516	2072	6e07bae0b60897abceaefbdc1219a3d0_JaffaCakes118.exe	29
PID 2072 wrote to memory of 2516	2072	6e07bae0b60897abceaefbdc1219a3d0_JaffaCakes118.exe	29
PID 2072 wrote to memory of 2516	2072	6e07bae0b60897abceaefbdc1219a3d0_JaffaCakes118.exe	29
PID 1396 wrote to memory of 1428	1396	taskeng.exe	37
PID 1396 wrote to memory of 1428	1396	taskeng.exe	37
PID 1396 wrote to memory of 1428	1396	taskeng.exe	37
PID 1396 wrote to memory of 1428	1396	taskeng.exe	37

C:\Users\Admin\AppData\Local\Temp\6e07bae0b60897abceaefbdc1219a3d0_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\6e07bae0b60897abceaefbdc1219a3d0_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2072
- C:\Windows\SysWOW64\icacls.exe
  icacls "C:\Users\Admin\AppData\Local\5a808118-c264-48f7-8b1d-0773e1a05d8d" /deny *S-1-1-0:(OI)(CI)(DE,DC)
  2⤵
  - Modifies file permissions
  PID:2408
- C:\Users\Admin\AppData\Local\Temp\6e07bae0b60897abceaefbdc1219a3d0_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\6e07bae0b60897abceaefbdc1219a3d0_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2516

C:\Windows\system32\taskeng.exe
taskeng.exe {66341115-F1CB-4307-9F44-72752349CB07} S-1-5-21-2248906074-2862704502-246302768-1000:GHPZRGFC\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1396
- C:\Users\Admin\AppData\Local\5a808118-c264-48f7-8b1d-0773e1a05d8d\6e07bae0b60897abceaefbdc1219a3d0_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\5a808118-c264-48f7-8b1d-0773e1a05d8d\6e07bae0b60897abceaefbdc1219a3d0_JaffaCakes118.exe --Task
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  PID:1428

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

Filesize
1KB

MD5
6180880554079cce45e90c0e2f0d1a12

SHA1
582754d9efea56d5bf20d19ee3ea1c89aacfd755

SHA256
f1a584dadcff1d0771907befea8175a3085541c8e0d2db8b52de97c02a2a1f6b

SHA512
796aea097d6c41989e8955d0ead10773a529af2cbc32d245b50979b3abbc08a32d559277b49bce16e04882fcb59f2c25910091521c9ba6aaa4c6b73bc5a52b03

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

Filesize
724B

MD5
8202a1cd02e7d69597995cabbe881a12

SHA1
8858d9d934b7aa9330ee73de6c476acf19929ff6

SHA256
58f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5

SHA512
97ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

Filesize
410B

MD5
75f48a4b38181195f1fe4495186fd1b1

SHA1
fcfa63da28bad0e089f51f0742b64d03021c175c

SHA256
4733c4d9b5cdaefae66e822b82a2cd062fa5878b17cdf06f14eb4dd2f0c50b39

SHA512
845214e4da5cd8e62150756e7e08a92a285d5b7feef80855f2d5318e586674f0d71ecf08016f7bc9b8dc9c96185a50f7cf44e22163c3da10946a144252fc4f2f

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
344B

MD5
86c7ef95eeee6d44f955cdf92c58e71e

SHA1
beab9e21930c8e73ef8a29b561170fd65b9c681c

SHA256
8fc3561969c286badc74a78348a9d6bd5ed1aa9eca5f8c6aae74aff668c3f40e

SHA512
f8b26c0c92fc77c9cdd3b29b6ab6b0dfc5a132a2d9e49943730a38838e95aa6842d54d87634664ccdf378d14cc05509383877c2f666581039b6a696cf15dcf60

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

Filesize
392B

MD5
94522f0160417154931bb84a2aa04f2a

SHA1
80043a49914791646a34bc7510601c47796790f0

SHA256
d77b5efc0dd1d597e96329fe03a17c14921ceca25528a510d47b9bb48e90f586

SHA512
9a632aca896d67ede26652261d753caa266a55c089dcc2d0b773f0c28dc0db47a73257dbd1b0a5d423e7d9c70742337e6f8d0b6843362f9fc7ebecbcabf62c30

Download Submit
C:\Users\Admin\AppData\Local\5a808118-c264-48f7-8b1d-0773e1a05d8d\6e07bae0b60897abceaefbdc1219a3d0_JaffaCakes118.exe

Filesize
803KB

MD5
6e07bae0b60897abceaefbdc1219a3d0

SHA1
dee1b5e1708d6d0a8305f9e133e2f18fa76aaf3e

SHA256
51279cf0dd0716de867e5bc706ef180f4ff1ed62e56c8a5858565408f41423c5

SHA512
37ca7e25842117686358e2724c34fb46e40debd21fe98e24498cd24cec600ec839eef58c2540228c4b99d3aa2a19e7ca4214b3cf9ffe27218d1335939a1d2db5

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab1EF6.tmp

Filesize
65KB

MD5
ac05d27423a85adc1622c714f2cb6184

SHA1
b0fe2b1abddb97837ea0195be70ab2ff14d43198

SHA256
c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

SHA512
6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

Download Submit
C:\Users\Admin\AppData\Local\Temp\TarA62F.tmp

Filesize
171KB

MD5
9c0c641c06238516f27941aa1166d427

SHA1
64cd549fb8cf014fcd9312aa7a5b023847b6c977

SHA256
4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

SHA512
936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

Download Submit
memory/1428-62-0x0000000000400000-0x0000000004766000-memory.dmp

Filesize
67.4MB

Download
memory/1428-52-0x0000000000300000-0x0000000000391000-memory.dmp

Filesize
580KB

Download
memory/2072-23-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2072-21-0x0000000000400000-0x0000000004766000-memory.dmp

Filesize
67.4MB

Download
memory/2072-22-0x0000000006160000-0x000000000627A000-memory.dmp

Filesize
1.1MB

Download
memory/2072-0-0x00000000002F0000-0x0000000000381000-memory.dmp

Filesize
580KB

Download
memory/2072-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2072-2-0x0000000006160000-0x000000000627A000-memory.dmp

Filesize
1.1MB

Download
memory/2072-1-0x00000000002F0000-0x0000000000381000-memory.dmp

Filesize
580KB

Download
memory/2516-24-0x0000000005FB0000-0x0000000006041000-memory.dmp

Filesize
580KB

Download
memory/2516-37-0x0000000000400000-0x0000000004766000-memory.dmp

Filesize
67.4MB

Download
memory/2516-38-0x0000000000400000-0x0000000004766000-memory.dmp

Filesize
67.4MB

Download
memory/2516-41-0x0000000000400000-0x0000000004766000-memory.dmp

Filesize
67.4MB

Download
memory/2516-399-0x0000000000400000-0x0000000004766000-memory.dmp

Filesize
67.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads