djvu | 3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c

Analysis

max time kernel
145s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
23-12-2024 12:57

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General

Target

JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe
Size

760KB
MD5

d834245925248f4b8f04e15ddba11730
SHA1

7ce6870e8d2279db38dd7972e2bbdfd54d33df3d
SHA256

3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c
SHA512

fa86c51e7008063956cc67f7f5309024baad40fb27c9f99adeee955ff807c8d6187d0a3977fc4d28bbd29a874d56b46006d5ae1a08c719f5d9c11d922afc160d
SSDEEP

12288:UzyDo/o6oH5jpcnUniUk1F0oysY3x4eeeZfgWT0OBBvd7MjvrRremiB:S/uZKwk1SSYukZzT0WF78Rre7

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/2516-2-0x0000000000660000-0x000000000077B000-memory.dmp	family_djvu
behavioral1/memory/2508-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2508-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2508-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2508-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2188-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2188-38-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2188-53-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2188-52-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2188-54-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2188-62-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2188-65-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2188-68-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2188-67-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2188-69-0x0000000000400000-0x0000000000537000-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
2896	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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\c754e543-a945-416e-aeeb-7c9cb35fce96\\JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe\" --AutoStart"	JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.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 2516 set thread context of 2508	2516	JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe	30
PID 2872 set thread context of 2188	2872	JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe	34

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	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2508	JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe
2508	JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe
2188	JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe
2188	JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2516 wrote to memory of 2508	2516	JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe	30
PID 2516 wrote to memory of 2508	2516	JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe	30
PID 2516 wrote to memory of 2508	2516	JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe	30
PID 2516 wrote to memory of 2508	2516	JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe	30
PID 2516 wrote to memory of 2508	2516	JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe	30
PID 2516 wrote to memory of 2508	2516	JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe	30
PID 2516 wrote to memory of 2508	2516	JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe	30
PID 2516 wrote to memory of 2508	2516	JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe	30
PID 2516 wrote to memory of 2508	2516	JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe	30
PID 2516 wrote to memory of 2508	2516	JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe	30
PID 2516 wrote to memory of 2508	2516	JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe	30
PID 2508 wrote to memory of 2896	2508	JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe	32
PID 2508 wrote to memory of 2896	2508	JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe	32
PID 2508 wrote to memory of 2896	2508	JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe	32
PID 2508 wrote to memory of 2896	2508	JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe	32
PID 2508 wrote to memory of 2872	2508	JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe	33
PID 2508 wrote to memory of 2872	2508	JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe	33
PID 2508 wrote to memory of 2872	2508	JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe	33
PID 2508 wrote to memory of 2872	2508	JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe	33
PID 2872 wrote to memory of 2188	2872	JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe	34
PID 2872 wrote to memory of 2188	2872	JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe	34
PID 2872 wrote to memory of 2188	2872	JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe	34
PID 2872 wrote to memory of 2188	2872	JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe	34
PID 2872 wrote to memory of 2188	2872	JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe	34
PID 2872 wrote to memory of 2188	2872	JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe	34
PID 2872 wrote to memory of 2188	2872	JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe	34
PID 2872 wrote to memory of 2188	2872	JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe	34
PID 2872 wrote to memory of 2188	2872	JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe	34
PID 2872 wrote to memory of 2188	2872	JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe	34
PID 2872 wrote to memory of 2188	2872	JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe	34

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2516
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2508
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\c754e543-a945-416e-aeeb-7c9cb35fce96" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2896
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2872
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2188

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
a896fec8a1aa34918c028e451591fd5c

SHA1
541b5e701b1fb8baf6b323b8e33902a2a6b0893b

SHA256
25b1cc0fd64cc45416a44ecea724056ec53289abb3592c68c782d2ce47eb98c0

SHA512
a313efa60309bd2cf6268559e9ab9ada041941cf6e6df0ade873f3063fcfded216a5900e464d4b2304eb3ebb4904881ed206235978d02b4a611335128bad31a3

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

Filesize
170B

MD5
9f1cdcd971eb7ee74bdfe8bb0a476fa7

SHA1
cb4c467e79c43db7d83d9c10db8589d2d2b08c0e

SHA256
1ebb4b49d4bfce67b71bb0fe9deeb3e6ee3d522239d3fba19abde92a606e9961

SHA512
3ff1b0894e1ca828a644ae1b9aa80f1e12224919e4e8cc803c52683f80eff4b01b4bab6871782753870b4d06476785874b3bcb035a91264b606c34d3a298569b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab96E3.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\c754e543-a945-416e-aeeb-7c9cb35fce96\JaffaCakes118_3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c.exe

Filesize
760KB

MD5
d834245925248f4b8f04e15ddba11730

SHA1
7ce6870e8d2279db38dd7972e2bbdfd54d33df3d

SHA256
3e837470875b62682d0a8c451e8d1389a0ae559b9e6de08edcaa69ec38e5216c

SHA512
fa86c51e7008063956cc67f7f5309024baad40fb27c9f99adeee955ff807c8d6187d0a3977fc4d28bbd29a874d56b46006d5ae1a08c719f5d9c11d922afc160d

Download Submit
memory/2188-52-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2188-54-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2188-69-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2188-67-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2188-68-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2188-65-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2188-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2188-62-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2188-38-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2188-53-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2508-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2508-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2508-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2508-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2508-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2516-2-0x0000000000660000-0x000000000077B000-memory.dmp

Filesize
1.1MB

Download
memory/2516-1-0x00000000002A0000-0x0000000000332000-memory.dmp

Filesize
584KB

Download
memory/2516-7-0x00000000002A0000-0x0000000000332000-memory.dmp

Filesize
584KB

Download
memory/2516-0-0x00000000002A0000-0x0000000000332000-memory.dmp

Filesize
584KB

Download
memory/2872-36-0x0000000000400000-0x00000000004E6000-memory.dmp

Filesize
920KB

Download
memory/2872-31-0x0000000000400000-0x00000000004E6000-memory.dmp

Filesize
920KB

Download
memory/2872-30-0x0000000000220000-0x00000000002B2000-memory.dmp

Filesize
584KB

Download