djvu | bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460

General

Target

JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe
Size

824KB
MD5

11613d9f4b4a75261f549e4fe8a8747d
SHA1

e2e1fbc42d443f5e53831ef8cc0c8b86aeca83b7
SHA256

bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460
SHA512

644839f05ac87e304fa44647079fc600f591ac9d9692b2922b0e62e20bf75dc5e2f729cd0b24ad8591f49f417ea23c2a3f85fe895cdd39ca3f7e1ced0a274521
SSDEEP

12288:HYrxLMQdvssOc63QLNYAqFUnXVwHnh55HMP4pl1DW1Bo:HYrmQZEc6gLa6wHh5hE4pLDSB

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

http://fuyt.org/fhsgtsspen6/get.php

Attributes

extension
.nuhb
offline_id
PfLhykvDxmCghCq8peuxBtQ3c0QBuANi8WUkuet1
payload_url
http://zerit.top/dl/build2.exe

http://fuyt.org/files/1/build3.exe
ransomnote
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rsa_pubkey.plain

Signatures

Detected Djvu ransomware 18 IoCs

resource	yara_rule
behavioral2/memory/1968-2-0x00000000022E0000-0x00000000023FB000-memory.dmp	family_djvu
behavioral2/memory/5068-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/5068-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/5068-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/5068-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/5068-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1860-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1860-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1860-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1860-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1860-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1860-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1860-39-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1860-42-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1860-44-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1860-45-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1860-46-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1860-47-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
4720	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-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\0538966d-a065-46ee-a6be-24d61da78aea\\JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe\" --AutoStart"	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.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
12	api.2ip.ua
16	api.2ip.ua
21	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1968 set thread context of 5068	1968	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	83
PID 540 set thread context of 1860	540	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	89

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_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
5068	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe
5068	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe
1860	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe
1860	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1968 wrote to memory of 5068	1968	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	83
PID 1968 wrote to memory of 5068	1968	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	83
PID 1968 wrote to memory of 5068	1968	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	83
PID 1968 wrote to memory of 5068	1968	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	83
PID 1968 wrote to memory of 5068	1968	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	83
PID 1968 wrote to memory of 5068	1968	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	83
PID 1968 wrote to memory of 5068	1968	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	83
PID 1968 wrote to memory of 5068	1968	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	83
PID 1968 wrote to memory of 5068	1968	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	83
PID 1968 wrote to memory of 5068	1968	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	83
PID 5068 wrote to memory of 4720	5068	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	85
PID 5068 wrote to memory of 4720	5068	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	85
PID 5068 wrote to memory of 4720	5068	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	85
PID 5068 wrote to memory of 540	5068	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	86
PID 5068 wrote to memory of 540	5068	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	86
PID 5068 wrote to memory of 540	5068	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	86
PID 540 wrote to memory of 1860	540	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	89
PID 540 wrote to memory of 1860	540	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	89
PID 540 wrote to memory of 1860	540	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	89
PID 540 wrote to memory of 1860	540	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	89
PID 540 wrote to memory of 1860	540	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	89
PID 540 wrote to memory of 1860	540	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	89
PID 540 wrote to memory of 1860	540	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	89
PID 540 wrote to memory of 1860	540	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	89
PID 540 wrote to memory of 1860	540	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	89
PID 540 wrote to memory of 1860	540	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	89

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1968
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:5068
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\0538966d-a065-46ee-a6be-24d61da78aea" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:4720
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:540
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:1860

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

File and Directory Permissions Modification

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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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
0c4dc6bfd5a6a4382ed114647eefa8e8

SHA1
227c2c1e8643f5cb5455bcf3fe55bb986c58b86b

SHA256
9aefdcca6ac38871316cf3515a927ec1a461b364b0bbedeb73f82c85901893da

SHA512
9f9a53110ac737b6e64dcd7b70ec5fe52ce337369901ee0a01a74075752e1ed9828f9d907f8818ca52649e619a1edf15bab34317c9c79f6ece06840270ff7d13

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

Filesize
170B

MD5
aa7df9cf38614e796f63622c99744f1d

SHA1
efb6515fe39e8f2177e523b7454974daefad8452

SHA256
58fdfbf3921e6a13650dcd1756d19f2f1ea9e3e1df90bfd91c713150a27ec42b

SHA512
94e6b7a5d5794f088b9361807abe6dd59f79c824f7ad8a9937643e965aa60bef9e913e5eafd74e117d38d271d2b9b00516408a8b0e825629f621086c13a73540

Download Submit
C:\Users\Admin\AppData\Local\0538966d-a065-46ee-a6be-24d61da78aea\JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe

Filesize
824KB

MD5
11613d9f4b4a75261f549e4fe8a8747d

SHA1
e2e1fbc42d443f5e53831ef8cc0c8b86aeca83b7

SHA256
bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460

SHA512
644839f05ac87e304fa44647079fc600f591ac9d9692b2922b0e62e20bf75dc5e2f729cd0b24ad8591f49f417ea23c2a3f85fe895cdd39ca3f7e1ced0a274521

Download Submit
memory/540-19-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download
memory/540-23-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download
memory/1860-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1860-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1860-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1860-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1860-47-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1860-46-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1860-45-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1860-44-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1860-42-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1860-39-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1860-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1860-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1968-1-0x0000000002240000-0x00000000022DB000-memory.dmp

Filesize
620KB

Download
memory/1968-2-0x00000000022E0000-0x00000000023FB000-memory.dmp

Filesize
1.1MB

Download
memory/5068-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5068-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5068-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5068-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5068-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads