djvu | cb12fca8e610543daad15aae2ee6273730a74bc3eeefd51b06a835bc689c0c32

Analysis

max time kernel
143s
max time network
124s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
09/04/2024, 10:55

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General

Target

e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe
Size

787KB
MD5

e9d42b34d47437c77e99450f1af86c33
SHA1

5766d7dc892e885647aa321a21b25eef28a6812a
SHA256

cb12fca8e610543daad15aae2ee6273730a74bc3eeefd51b06a835bc689c0c32
SHA512

ec0c355d90949ff9b98ca8981e56a60a2513239c818bccd267dd6a0c001c589d478e4e02032954de1d043cbaed2d445291f9d5fcbc7a4386ee3c891eee873f62
SSDEEP

24576:hJ3iLlDe8u88qbcrvybqFTCDWUDrtrK6xlJXXQiH8aMjLBPA:h0LRlnbRbqp+LDrtrKAlBWBI

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

http://astdg.top/nddddhsspen6/get.php

Attributes

extension
.moqs
offline_id
CatwRkqdYh2Jomn6DqwFoGgcSbDsle1xlE1NPtt1
payload_url
http://securebiz.org/dl/build2.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-N3p42CffoV 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: 0318ewgfDd

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 14 IoCs

resource	yara_rule
behavioral1/memory/2992-2-0x0000000002260000-0x000000000237B000-memory.dmp	family_djvu
behavioral1/memory/2148-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2148-7-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2148-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2148-26-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2552-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2552-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2552-48-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2552-49-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2552-50-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2552-54-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2552-56-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2552-57-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2552-58-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2748	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-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\3474a9c5-2bd3-4ae4-830b-8404e67a1911\\e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe\" --AutoStart"	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.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
3	api.2ip.ua
4	api.2ip.ua
9	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2992 set thread context of 2148	2992	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	28
PID 2828 set thread context of 2552	2828	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	31

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2148	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe
2552	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe
2552	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2992 wrote to memory of 2148	2992	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	28
PID 2992 wrote to memory of 2148	2992	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	28
PID 2992 wrote to memory of 2148	2992	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	28
PID 2992 wrote to memory of 2148	2992	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	28
PID 2992 wrote to memory of 2148	2992	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	28
PID 2992 wrote to memory of 2148	2992	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	28
PID 2992 wrote to memory of 2148	2992	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	28
PID 2992 wrote to memory of 2148	2992	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	28
PID 2992 wrote to memory of 2148	2992	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	28
PID 2992 wrote to memory of 2148	2992	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	28
PID 2992 wrote to memory of 2148	2992	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	28
PID 2148 wrote to memory of 2748	2148	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	29
PID 2148 wrote to memory of 2748	2148	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	29
PID 2148 wrote to memory of 2748	2148	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	29
PID 2148 wrote to memory of 2748	2148	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	29
PID 2148 wrote to memory of 2828	2148	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	30
PID 2148 wrote to memory of 2828	2148	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	30
PID 2148 wrote to memory of 2828	2148	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	30
PID 2148 wrote to memory of 2828	2148	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	30
PID 2828 wrote to memory of 2552	2828	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	31
PID 2828 wrote to memory of 2552	2828	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	31
PID 2828 wrote to memory of 2552	2828	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	31
PID 2828 wrote to memory of 2552	2828	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	31
PID 2828 wrote to memory of 2552	2828	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	31
PID 2828 wrote to memory of 2552	2828	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	31
PID 2828 wrote to memory of 2552	2828	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	31
PID 2828 wrote to memory of 2552	2828	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	31
PID 2828 wrote to memory of 2552	2828	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	31
PID 2828 wrote to memory of 2552	2828	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	31
PID 2828 wrote to memory of 2552	2828	e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2992
- C:\Users\Admin\AppData\Local\Temp\e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2148
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\3474a9c5-2bd3-4ae4-830b-8404e67a1911" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:2748
- - C:\Users\Admin\AppData\Local\Temp\e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:2828
  - - C:\Users\Admin\AppData\Local\Temp\e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Suspicious behavior: EnumeratesProcesses
      PID:2552

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

File and Directory Permissions Modification

T1222

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

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
fc5408c48a55314c72e200b74330cac4

SHA1
7e8889ec3189a40e6078088927bf3612753fa628

SHA256
7ea2a016d97635b1367455af2250cbf9e9c34d293829d11fc21ce905347590c4

SHA512
481753ef755c188012919ea728ea0395f22b6ce83f2f9a11675be6072f154db141b2382dc62ad7c3c95e36596529176a66f40e3d118cf0e33ea8e6f716ae1d77

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
73bfeec4163a74514ccfecda051e9e58

SHA1
68f506f95a5a0181f09d816c08cddf77b5a8db11

SHA256
cc567f783293a1a94c62c5576ac307c3d148f427d0dbfeb6263b8fcd15f0097a

SHA512
0864e1e4edc588b0324df163fb4f62af8a1a4fc52809b559a4b16829a0017acfd05212da12060b8ed3a70e18f967deccf2bfd525caeb2364c5924f48b71cfad0

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

Filesize
344B

MD5
9ffee0ac86899df59a7c89abf1c9d974

SHA1
40e7588f7a9f9d5da4f1b95fb26342f3082729f4

SHA256
d90da81cdd4ebaab62057edbad34135df29db0f0265fbcb3db29f2a975dfd4b6

SHA512
47e946b531d3e7f5b6d5324562824ca10a5f87f7d61cd413fbe5062044101f777313b3b4c68032173058ffb2c388f4f73022961355ec1d3aa59f9bedbbbc0047

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

Filesize
392B

MD5
a2f4fbffe36922d0254668e4d20efe93

SHA1
b6a948229b5645a9dc36194c88809b60e9546f12

SHA256
f16a15080e88ba817351e6560fc2378c2270dfb1c97db60922d307d7fa7a8935

SHA512
28b0ed5f6fe3a2b565330d40535ae889df2b6928be0c578942d8bed30d862fb1c39bf2f4d1745c527843fdba44f2074478b9263b3fda9029b89b034574b59b09

Download Submit
C:\Users\Admin\AppData\Local\3474a9c5-2bd3-4ae4-830b-8404e67a1911\e9d42b34d47437c77e99450f1af86c33_JaffaCakes118.exe

Filesize
787KB

MD5
e9d42b34d47437c77e99450f1af86c33

SHA1
5766d7dc892e885647aa321a21b25eef28a6812a

SHA256
cb12fca8e610543daad15aae2ee6273730a74bc3eeefd51b06a835bc689c0c32

SHA512
ec0c355d90949ff9b98ca8981e56a60a2513239c818bccd267dd6a0c001c589d478e4e02032954de1d043cbaed2d445291f9d5fcbc7a4386ee3c891eee873f62

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab670D.tmp

Filesize
65KB

MD5
ac05d27423a85adc1622c714f2cb6184

SHA1
b0fe2b1abddb97837ea0195be70ab2ff14d43198

SHA256
c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

SHA512
6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

Download Submit
memory/2148-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2148-7-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2148-26-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2148-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2148-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2552-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2552-54-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2552-58-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2552-34-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2552-57-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2552-56-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2552-50-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2552-48-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2552-49-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2828-30-0x0000000000320000-0x00000000003B2000-memory.dmp

Filesize
584KB

Download
memory/2828-27-0x0000000000320000-0x00000000003B2000-memory.dmp

Filesize
584KB

Download
memory/2992-1-0x0000000000340000-0x00000000003D2000-memory.dmp

Filesize
584KB

Download
memory/2992-0-0x0000000000340000-0x00000000003D2000-memory.dmp

Filesize
584KB

Download
memory/2992-2-0x0000000002260000-0x000000000237B000-memory.dmp

Filesize
1.1MB

Download