djvu | c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9

Analysis

max time kernel
147s
max time network
136s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
24-12-2024 18:46

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General

Target

JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe
Size

768KB
MD5

bf38f7a1539e20039ffdadee72bcef0e
SHA1

7225b33c709f7dbe92f13d53aed54ce969649828
SHA256

c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9
SHA512

6f0b45a57b2062b2666104456250604339968676341e4f92b44697fb9acdbb033c26c9338731ebdf9dc0e13e2c3dc9ce682935839b671d38638a5a45d8ba2148
SSDEEP

12288:B0F+ljfLb3SuBhEAJITrM2EjW6aqBRfyrhfjWL00TIO40t7ZuXb8a+3MVBt99fKR:xjj77ZCXM2lrhfyg0TQnAyBtbiR

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

http://acacaca.org/test1/get.php

Attributes

extension
.eewt
offline_id
5IVlpkccZlJz0AZ5atgGWVKe9CGAnXjohDf40mt1
payload_url
http://rgyui.top/dl/build2.exe

http://acacaca.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-0e5rCKsYCc 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: 0558Jhyjd

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 15 IoCs

resource	yara_rule
behavioral1/memory/2396-2-0x0000000000620000-0x000000000073B000-memory.dmp	family_djvu
behavioral1/memory/2388-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2388-7-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2388-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2388-26-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2808-33-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2808-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2808-47-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2808-48-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2808-49-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2808-53-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2808-62-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2808-64-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2808-65-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2808-66-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

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

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2988	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-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\5a27329f-805c-47ef-93ee-c6d26f520d8c\\JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe\" --AutoStart"	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.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
4	api.2ip.ua
5	api.2ip.ua
9	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2396 set thread context of 2388	2396	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	30
PID 2800 set thread context of 2808	2800	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	35

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_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2388	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe
2388	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe
2808	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe
2808	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2396 wrote to memory of 2388	2396	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	30
PID 2396 wrote to memory of 2388	2396	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	30
PID 2396 wrote to memory of 2388	2396	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	30
PID 2396 wrote to memory of 2388	2396	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	30
PID 2396 wrote to memory of 2388	2396	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	30
PID 2396 wrote to memory of 2388	2396	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	30
PID 2396 wrote to memory of 2388	2396	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	30
PID 2396 wrote to memory of 2388	2396	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	30
PID 2396 wrote to memory of 2388	2396	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	30
PID 2396 wrote to memory of 2388	2396	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	30
PID 2396 wrote to memory of 2388	2396	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	30
PID 2388 wrote to memory of 2988	2388	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	33
PID 2388 wrote to memory of 2988	2388	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	33
PID 2388 wrote to memory of 2988	2388	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	33
PID 2388 wrote to memory of 2988	2388	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	33
PID 2388 wrote to memory of 2800	2388	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	34
PID 2388 wrote to memory of 2800	2388	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	34
PID 2388 wrote to memory of 2800	2388	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	34
PID 2388 wrote to memory of 2800	2388	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	34
PID 2800 wrote to memory of 2808	2800	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	35
PID 2800 wrote to memory of 2808	2800	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	35
PID 2800 wrote to memory of 2808	2800	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	35
PID 2800 wrote to memory of 2808	2800	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	35
PID 2800 wrote to memory of 2808	2800	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	35
PID 2800 wrote to memory of 2808	2800	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	35
PID 2800 wrote to memory of 2808	2800	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	35
PID 2800 wrote to memory of 2808	2800	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	35
PID 2800 wrote to memory of 2808	2800	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	35
PID 2800 wrote to memory of 2808	2800	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	35
PID 2800 wrote to memory of 2808	2800	JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe	35

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2396
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2388
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\5a27329f-805c-47ef-93ee-c6d26f520d8c" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2988
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2800
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2808

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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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
607470894b15a197f52aa2419f84b39e

SHA1
e4b726267faa06a511e53015813de6a879c90f91

SHA256
91137d26d6b2a7ce08f2c23552183742b798d82337a069698af82d2e25cdb2f2

SHA512
f5d0f255ee904fe40cef420c2b8c1b8844d223f698b847a05d87a3424df48058d23af59f66406b2ff1dce5a3dfc5cae497ad436d0f239f5d2bc88b57f313ff0d

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

Filesize
170B

MD5
c72742d3b9bd714c920c8b95fbc5cbc6

SHA1
a0b4ea0bd30dd1a0bcf0d318d7f1a4f11f6c8273

SHA256
e7f394529b60a1bbf98b93a7ae094d3a706a4a1399f3f6bc97dab2adfa8812ef

SHA512
776c6cece8d639f9523e7ce5f0b0f698cce99c34e109bc502d579ca50ef7855b1df91def12d790bbb291fd03a96ba45e716c6406a928608e8df39ad4b165f73a

Download Submit
C:\Users\Admin\AppData\Local\5a27329f-805c-47ef-93ee-c6d26f520d8c\JaffaCakes118_c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9.exe

Filesize
768KB

MD5
bf38f7a1539e20039ffdadee72bcef0e

SHA1
7225b33c709f7dbe92f13d53aed54ce969649828

SHA256
c2c5551a341048c9ce4a676e70aace321d330011ad00fea3e620ab6f6fda04c9

SHA512
6f0b45a57b2062b2666104456250604339968676341e4f92b44697fb9acdbb033c26c9338731ebdf9dc0e13e2c3dc9ce682935839b671d38638a5a45d8ba2148

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabE179.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/2388-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2388-26-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2388-7-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2388-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2388-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2396-1-0x0000000000250000-0x00000000002E1000-memory.dmp

Filesize
580KB

Download
memory/2396-0-0x0000000000250000-0x00000000002E1000-memory.dmp

Filesize
580KB

Download
memory/2396-2-0x0000000000620000-0x000000000073B000-memory.dmp

Filesize
1.1MB

Download
memory/2800-27-0x0000000000290000-0x0000000000321000-memory.dmp

Filesize
580KB

Download
memory/2800-28-0x0000000000400000-0x000000000061C000-memory.dmp

Filesize
2.1MB

Download
memory/2800-34-0x0000000000400000-0x000000000061C000-memory.dmp

Filesize
2.1MB

Download
memory/2808-33-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2808-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2808-47-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2808-48-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2808-49-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2808-53-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2808-62-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2808-64-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2808-65-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2808-66-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download