djvu | 24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324

Analysis

max time kernel
145s
max time network
133s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
23-12-2024 18:21

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General

Target

JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe
Size

785KB
MD5

65ac13d692318302e314eb2ed5627476
SHA1

4ccd691fdbac8ee6b3c2494e36d176d1498c0722
SHA256

24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324
SHA512

c6b3076d4f86422ea503d5eaefd898a07abce2311d80aead8273346d824ea914d11e4cbae143a98cf5a8cfc5ee295946a2b233bf1443d6a9a9c229a7704c25b8
SSDEEP

12288:MA4LD6Opx5KGkZUGjucDeL300guAOkELEcqy8KjLmIYk71O/N52TD9yiz:MBLzX5BcDe3AbwqyFmIYkwOou

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

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

Attributes

extension
.tuid
offline_id
LgcOIftV0dQfFBQStVNfb8BhHy8tHRPvXwSiFwt1
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-FglTTmgzZT 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: 0440tOjkfd

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 15 IoCs

resource	yara_rule
behavioral1/memory/2220-2-0x0000000001DA0000-0x0000000001EBB000-memory.dmp	family_djvu
behavioral1/memory/2192-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2192-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2192-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2192-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2608-38-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2608-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2608-51-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2608-52-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2608-53-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2608-57-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2608-66-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2608-69-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2608-68-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2608-70-0x0000000000400000-0x0000000000537000-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
2728	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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\f2221f71-80af-4141-977a-b67ea53116f6\\JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe\" --AutoStart"	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.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 2220 set thread context of 2192	2220	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	30
PID 2724 set thread context of 2608	2724	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.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_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2192	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe
2192	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe
2608	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe
2608	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2220 wrote to memory of 2192	2220	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	30
PID 2220 wrote to memory of 2192	2220	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	30
PID 2220 wrote to memory of 2192	2220	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	30
PID 2220 wrote to memory of 2192	2220	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	30
PID 2220 wrote to memory of 2192	2220	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	30
PID 2220 wrote to memory of 2192	2220	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	30
PID 2220 wrote to memory of 2192	2220	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	30
PID 2220 wrote to memory of 2192	2220	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	30
PID 2220 wrote to memory of 2192	2220	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	30
PID 2220 wrote to memory of 2192	2220	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	30
PID 2220 wrote to memory of 2192	2220	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	30
PID 2192 wrote to memory of 2728	2192	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	31
PID 2192 wrote to memory of 2728	2192	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	31
PID 2192 wrote to memory of 2728	2192	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	31
PID 2192 wrote to memory of 2728	2192	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	31
PID 2192 wrote to memory of 2724	2192	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	32
PID 2192 wrote to memory of 2724	2192	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	32
PID 2192 wrote to memory of 2724	2192	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	32
PID 2192 wrote to memory of 2724	2192	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	32
PID 2724 wrote to memory of 2608	2724	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	33
PID 2724 wrote to memory of 2608	2724	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	33
PID 2724 wrote to memory of 2608	2724	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	33
PID 2724 wrote to memory of 2608	2724	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	33
PID 2724 wrote to memory of 2608	2724	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	33
PID 2724 wrote to memory of 2608	2724	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	33
PID 2724 wrote to memory of 2608	2724	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	33
PID 2724 wrote to memory of 2608	2724	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	33
PID 2724 wrote to memory of 2608	2724	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	33
PID 2724 wrote to memory of 2608	2724	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	33
PID 2724 wrote to memory of 2608	2724	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2220
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2192
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\f2221f71-80af-4141-977a-b67ea53116f6" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2728
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2724
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2608

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
c99ff73d8f1489f5e1f97d95a005f931

SHA1
219e57b4009337b0bb7c6fc645d38b6aeb6537ec

SHA256
3de98a2560a9c54ba68b8b6db6ccceb48003f47eee716cdec6e141a4d2778775

SHA512
002da7d0ace771c1b9613446f86821c23cbf74a969a3793f7666755c8cce941fc59231bcec660febb41bf4dbc8ae313b2534b1f2a00fbb9ef790164726b2c295

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

Filesize
342B

MD5
902fd8d4560c480617140edf65285bc3

SHA1
e6770803f3752f714a670940c0658dd075f50cf7

SHA256
0e36f82cdf4e993009dbe7d8c6718869741254b87002725864889cd93fdbea73

SHA512
37c34f2f1443ea278eb60004516dab471d98a73caf17a9deaa6b0107c4c6895df2170ef966ca8f28c11df258eb605286c9b062045489d3b365b1bfb74cfd49d4

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

Filesize
170B

MD5
c27af80f73b53305e296db4052496b3a

SHA1
bcf9b9ca0178ac08c528f97f71af3a08a8af57f3

SHA256
4e5176db24c60bf8032b4b156dcf0672dbc3ea8198e1a0bb1bfd4ac971a786c2

SHA512
0b7e36ba3f997a9b59c669693be753486fd9f4d6d7fa63d90c8e673bc2313d479331832bc2f1f754df56ceb9c2ac7d00be60941f6b2f1c49f94afff79b6e019c

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab623C.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\f2221f71-80af-4141-977a-b67ea53116f6\JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe

Filesize
785KB

MD5
65ac13d692318302e314eb2ed5627476

SHA1
4ccd691fdbac8ee6b3c2494e36d176d1498c0722

SHA256
24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324

SHA512
c6b3076d4f86422ea503d5eaefd898a07abce2311d80aead8273346d824ea914d11e4cbae143a98cf5a8cfc5ee295946a2b233bf1443d6a9a9c229a7704c25b8

Download Submit
memory/2192-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2192-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2192-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2192-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2192-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2220-7-0x00000000004D0000-0x0000000000562000-memory.dmp

Filesize
584KB

Download
memory/2220-2-0x0000000001DA0000-0x0000000001EBB000-memory.dmp

Filesize
1.1MB

Download
memory/2220-0-0x00000000004D0000-0x0000000000562000-memory.dmp

Filesize
584KB

Download
memory/2220-1-0x00000000004D0000-0x0000000000562000-memory.dmp

Filesize
584KB

Download
memory/2608-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2608-38-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2608-51-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2608-52-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2608-53-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2608-57-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2608-66-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2608-69-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2608-68-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2608-70-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2724-35-0x0000000000400000-0x00000000004CE000-memory.dmp

Filesize
824KB

Download
memory/2724-31-0x0000000000400000-0x00000000004CE000-memory.dmp

Filesize
824KB

Download
memory/2724-30-0x00000000004D0000-0x0000000000562000-memory.dmp

Filesize
584KB

Download