djvu | 3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f

Analysis

max time kernel
145s
max time network
132s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22/12/2024, 07:41

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General

Target

JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe
Size

833KB
MD5

76986b9982ec8ce988467ea9b5c15734
SHA1

7ec7651244c50b5bc9445540347475104da96417
SHA256

3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f
SHA512

8142d5e0a7837733e1d71298588613b31f6c20a340365d6f34e77131e98882933ab29624c65b7c44b4279bf4fc3fd02598c1d185f97eeaddbf4ff5237a847c18
SSDEEP

12288:QXSm4PokKKNZ00nOf9sgI+LE0Qas8g28P89M1sNaOamKBJYunnwR:wSnKoZpkLLrP5M0YrJzwR

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

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

Attributes

extension
.wdlo
offline_id
i0fXrUHVihm5xsI9Icg243YMPJqd748Ocimkyjt1
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-0S984cQ4B3 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: 0430JIjdm

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 15 IoCs

resource	yara_rule
behavioral1/memory/3068-2-0x0000000001DC0000-0x0000000001EDB000-memory.dmp	family_djvu
behavioral1/memory/2628-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2628-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2628-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2628-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2644-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2644-38-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2644-51-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2644-52-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2644-53-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2644-57-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2644-66-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2644-68-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2644-69-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2644-70-0x0000000000400000-0x0000000000537000-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
2688	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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\e39fc591-39ba-4c17-91a2-fd5c4b8d5404\\JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe\" --AutoStart"	JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.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
9	api.2ip.ua
3	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3068 set thread context of 2628	3068	JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe	30
PID 2772 set thread context of 2644	2772	JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe	33

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_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2628	JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe
2628	JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe
2644	JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe
2644	JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3068 wrote to memory of 2628	3068	JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe	30
PID 3068 wrote to memory of 2628	3068	JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe	30
PID 3068 wrote to memory of 2628	3068	JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe	30
PID 3068 wrote to memory of 2628	3068	JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe	30
PID 3068 wrote to memory of 2628	3068	JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe	30
PID 3068 wrote to memory of 2628	3068	JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe	30
PID 3068 wrote to memory of 2628	3068	JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe	30
PID 3068 wrote to memory of 2628	3068	JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe	30
PID 3068 wrote to memory of 2628	3068	JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe	30
PID 3068 wrote to memory of 2628	3068	JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe	30
PID 3068 wrote to memory of 2628	3068	JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe	30
PID 2628 wrote to memory of 2688	2628	JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe	31
PID 2628 wrote to memory of 2688	2628	JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe	31
PID 2628 wrote to memory of 2688	2628	JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe	31
PID 2628 wrote to memory of 2688	2628	JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe	31
PID 2628 wrote to memory of 2772	2628	JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe	32
PID 2628 wrote to memory of 2772	2628	JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe	32
PID 2628 wrote to memory of 2772	2628	JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe	32
PID 2628 wrote to memory of 2772	2628	JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe	32
PID 2772 wrote to memory of 2644	2772	JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe	33
PID 2772 wrote to memory of 2644	2772	JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe	33
PID 2772 wrote to memory of 2644	2772	JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe	33
PID 2772 wrote to memory of 2644	2772	JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe	33
PID 2772 wrote to memory of 2644	2772	JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe	33
PID 2772 wrote to memory of 2644	2772	JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe	33
PID 2772 wrote to memory of 2644	2772	JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe	33
PID 2772 wrote to memory of 2644	2772	JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe	33
PID 2772 wrote to memory of 2644	2772	JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe	33
PID 2772 wrote to memory of 2644	2772	JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe	33
PID 2772 wrote to memory of 2644	2772	JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3068
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2628
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\e39fc591-39ba-4c17-91a2-fd5c4b8d5404" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2688
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2772
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2644

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
ee8c1a218ec55b66b0d547175b09134e

SHA1
d956e2309be644583a129f0d05a54ac1b8333507

SHA256
56f47257df9228fd196c898ea16341c8d0688943831da2201ddf166b954a1619

SHA512
c644f9dcf0c12f7f27b5978ca966863257669dc97e8cf0c561e485d63a802d55c53f86cd6a718da9fa2b5a954212701d58d10d06a2adaad92ad0ef4ca264dc69

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

Filesize
342B

MD5
9b5a6843c7b007fac3e1faf6bb576a81

SHA1
3d11bb01d0e8c413a2e9302df26490e2c2b06cfa

SHA256
e57f847124fa616ce275d6a9b980e745cb5bd4828ebe0f7e81ed6dc93dbda56f

SHA512
a2dd2e0159882c0e52fd1667d9b10963d319c7e27045a2c084ce08c7d41750779a054daf6e76315e97e67a1ba6f11e5cbbbfefe5a2b0926175d1452782a690a6

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

Filesize
170B

MD5
bca4bfbebbc8a167b33e6a003fa00bd8

SHA1
fd28b3ed34d4ad0d1f0ec78d1b0d495cb58d704f

SHA256
39d0f85f93f4d9d19637c4f690b76bdaebd94c1fd49594df22ebba71c231eb72

SHA512
2526edaef27544cf5a5f199e606647244f7874744fe661a6b01179b70f34f39f8ba58b1355c9d2df875a5738343aabe3890249cf425cb7219b93a2e771ac2c3c

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

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\e39fc591-39ba-4c17-91a2-fd5c4b8d5404\JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe

Filesize
833KB

MD5
76986b9982ec8ce988467ea9b5c15734

SHA1
7ec7651244c50b5bc9445540347475104da96417

SHA256
3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f

SHA512
8142d5e0a7837733e1d71298588613b31f6c20a340365d6f34e77131e98882933ab29624c65b7c44b4279bf4fc3fd02598c1d185f97eeaddbf4ff5237a847c18

Download Submit
memory/2628-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2628-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2628-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2628-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2628-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2644-38-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2644-66-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2644-70-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2644-69-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2644-68-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2644-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2644-57-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2644-53-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2644-52-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2644-51-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2772-30-0x0000000000220000-0x00000000002B1000-memory.dmp

Filesize
580KB

Download
memory/2772-31-0x0000000000400000-0x0000000000514000-memory.dmp

Filesize
1.1MB

Download
memory/2772-35-0x0000000000400000-0x0000000000514000-memory.dmp

Filesize
1.1MB

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memory/3068-1-0x00000000002A0000-0x0000000000331000-memory.dmp

Filesize
580KB

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memory/3068-2-0x0000000001DC0000-0x0000000001EDB000-memory.dmp

Filesize
1.1MB

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memory/3068-7-0x00000000002A0000-0x0000000000331000-memory.dmp

Filesize
580KB

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memory/3068-0-0x00000000002A0000-0x0000000000331000-memory.dmp

Filesize
580KB

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