djvu | c8c90476499981166b84df46c15871b2cce74ab65d1e9a6d2dad660b06f80143

Analysis

max time kernel
146s
max time network
146s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19-09-2024 21:42

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General

Target

ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe
Size

854KB
MD5

ec3f1269bb1442106d93361f7bde2b43
SHA1

3fe8e6d37aaac065c158bdd8f29b8d9598167dcb
SHA256

c8c90476499981166b84df46c15871b2cce74ab65d1e9a6d2dad660b06f80143
SHA512

96c2c62e0a864c6da1646ef4436b77b1e22cd7d5b1bb08d34d234d6d83c2f610c0d0d8b5f99d3f6821b3aa1c5c2cd72374cd7144bd6a87b10ddbb5fedfca9cc3
SSDEEP

24576:YIHbAiVDPXfiDrJBaWC8sTTmhi/Gw41YeI0bAiOe5dH:YoVDCJBsTyi+wRIp

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

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

Attributes

extension
.mppq
offline_id
EiZX0rbexOkp612YCVCqdSZE3kObdqTVIZD2j9t1
payload_url
http://asvb.top/files/penelop/updatewin1.exe

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

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

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

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

http://asvb.top/files/penelop/5.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-A2MIyY0Wsw 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: 0302ewgfDd

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 10 IoCs

resource	yara_rule
behavioral1/memory/3028-2-0x0000000001DC0000-0x0000000001EDB000-memory.dmp	family_djvu
behavioral1/memory/3032-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3032-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3032-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3032-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2616-40-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2616-39-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2616-56-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2616-55-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2616-57-0x0000000000400000-0x0000000000537000-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
2720	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-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\fa26cc94-d7a3-4e4f-9394-5758c763e9dc\\ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe\" --AutoStart"	ec3f1269bb1442106d93361f7bde2b43_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 3028 set thread context of 3032	3028	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	30
PID 2792 set thread context of 2616	2792	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.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	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3032	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe
3032	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe
2616	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe
2616	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3028 wrote to memory of 3032	3028	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	30
PID 3028 wrote to memory of 3032	3028	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	30
PID 3028 wrote to memory of 3032	3028	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	30
PID 3028 wrote to memory of 3032	3028	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	30
PID 3028 wrote to memory of 3032	3028	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	30
PID 3028 wrote to memory of 3032	3028	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	30
PID 3028 wrote to memory of 3032	3028	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	30
PID 3028 wrote to memory of 3032	3028	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	30
PID 3028 wrote to memory of 3032	3028	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	30
PID 3028 wrote to memory of 3032	3028	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	30
PID 3028 wrote to memory of 3032	3028	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	30
PID 3032 wrote to memory of 2720	3032	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	31
PID 3032 wrote to memory of 2720	3032	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	31
PID 3032 wrote to memory of 2720	3032	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	31
PID 3032 wrote to memory of 2720	3032	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	31
PID 3032 wrote to memory of 2792	3032	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	32
PID 3032 wrote to memory of 2792	3032	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	32
PID 3032 wrote to memory of 2792	3032	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	32
PID 3032 wrote to memory of 2792	3032	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	32
PID 2792 wrote to memory of 2616	2792	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	33
PID 2792 wrote to memory of 2616	2792	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	33
PID 2792 wrote to memory of 2616	2792	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	33
PID 2792 wrote to memory of 2616	2792	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	33
PID 2792 wrote to memory of 2616	2792	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	33
PID 2792 wrote to memory of 2616	2792	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	33
PID 2792 wrote to memory of 2616	2792	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	33
PID 2792 wrote to memory of 2616	2792	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	33
PID 2792 wrote to memory of 2616	2792	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	33
PID 2792 wrote to memory of 2616	2792	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	33
PID 2792 wrote to memory of 2616	2792	ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe	33

C:\Users\Admin\AppData\Local\Temp\ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3028
- C:\Users\Admin\AppData\Local\Temp\ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3032
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\fa26cc94-d7a3-4e4f-9394-5758c763e9dc" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2720
- - C:\Users\Admin\AppData\Local\Temp\ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2792
  - - C:\Users\Admin\AppData\Local\Temp\ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2616

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
7fb5fa1534dcf77f2125b2403b30a0ee

SHA1
365d96812a69ac0a4611ea4b70a3f306576cc3ea

SHA256
33a39e9ec2133230533a686ec43760026e014a3828c703707acbc150fe40fd6f

SHA512
a9279fd60505a1bfeef6fb07834cad0fd5be02fd405573fc1a5f59b991e9f88f5e81c32fe910f69bdc6585e71f02559895149eaf49c25b8ff955459fd60c0d2e

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
20e9f9d01507ddd71215e488720c34c8

SHA1
b8d9eb265dd7a53e6080ab359484b167d6a40ed1

SHA256
3d96bce52d1935e5e16d88fc05f5403e470c7f2bb3a49a668c43ade38949370c

SHA512
ec2f25cc087b9f01908c1fd4931d4f445019bcb9168ac3ab615fdaec6c3688c1480f32c45a54ab1cba97d609c8495cfb3d1d14fc64c4b9e9d635b6d66a605920

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

Filesize
342B

MD5
7f8dd1b9a984c4fed1a385a7268fa7b9

SHA1
1f38a31842ac43dcacfe27cec762295d2bee3593

SHA256
ec9e531a85785bd23af10a3985dd88b560296959b25a5d25679871ecd3890f5f

SHA512
676b01870ff258355a132f721704d38a0c02d5a560d77b21d7a0cdd02fb572025fd48b821b1ad360145d12c7d808af6eec8609430c1d05ddd3864db05b677dee

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

Filesize
170B

MD5
6a8c04eff0a946376e0777a1e92d2e40

SHA1
a2e9af384e287a344941becdb37c3ccdea20b477

SHA256
fb5dc56af0d728e2ad1e46c081056b58b53b02489f99d9c9c88c51cbc4bfd74f

SHA512
f19a348e48bba854aabe1497f78ddf5f7884d2f2f62e432fab9c07058aa3ffdc81f5d2e00584236ace03f2193c6778c4dbf5a71d44740a53b027473f7647a3de

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab9627.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\fa26cc94-d7a3-4e4f-9394-5758c763e9dc\ec3f1269bb1442106d93361f7bde2b43_JaffaCakes118.exe

Filesize
854KB

MD5
ec3f1269bb1442106d93361f7bde2b43

SHA1
3fe8e6d37aaac065c158bdd8f29b8d9598167dcb

SHA256
c8c90476499981166b84df46c15871b2cce74ab65d1e9a6d2dad660b06f80143

SHA512
96c2c62e0a864c6da1646ef4436b77b1e22cd7d5b1bb08d34d234d6d83c2f610c0d0d8b5f99d3f6821b3aa1c5c2cd72374cd7144bd6a87b10ddbb5fedfca9cc3

Download Submit
memory/2616-40-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2616-56-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2616-57-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2616-55-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2616-39-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2792-32-0x00000000002C0000-0x0000000000352000-memory.dmp

Filesize
584KB

Download
memory/2792-33-0x0000000000400000-0x00000000004DE000-memory.dmp

Filesize
888KB

Download
memory/2792-38-0x0000000000400000-0x00000000004DE000-memory.dmp

Filesize
888KB

Download
memory/3028-1-0x0000000000550000-0x00000000005E2000-memory.dmp

Filesize
584KB

Download
memory/3028-7-0x0000000000550000-0x00000000005E2000-memory.dmp

Filesize
584KB

Download
memory/3028-2-0x0000000001DC0000-0x0000000001EDB000-memory.dmp

Filesize
1.1MB

Download
memory/3028-0-0x0000000000550000-0x00000000005E2000-memory.dmp

Filesize
584KB

Download
memory/3032-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3032-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3032-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3032-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3032-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download