djvu | 00526ec04e7ec6304f13d35127be12709f619877ea00197b0e9329864694cbd9

General

Target

7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe
Size

725KB
MD5

e8bbb6d921b79101aea7d906a1798f3d
SHA1

4fd59822cdedd1b194d27d2c01a9cde6222de1bb
SHA256

7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd
SHA512

c525e07c65c7be43aa90568f98253b397919cd0f597b1ba446fed51a578ca1aae4c93fa59e1345b20e3216a676ba35c89c67d6ced6bea68da44a53989fa4d656
SSDEEP

12288:O7q+wuEST6sxwGCwuwn5vE2nyrJppqrNSP9kdrzA9PpXtuRt2BoivOnJztu3vdyB:CqrFvGjF5iZqrQag1t7+nJztuHi

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

http://ring1.ug/As73yhsyU34578hxxx/SDf565g/get.php

Attributes

extension
.coot
offline_id
MRQ5kb5Z12tWuP3e25YoRt4PRDrJd2yuI3coott1
payload_url
http://ring1.ug/files/cost/updatewin1.exe

http://ring1.ug/files/cost/updatewin2.exe

http://ring1.ug/files/cost/updatewin.exe

http://ring1.ug/files/cost/3.exe

http://ring1.ug/files/cost/4.exe

http://ring1.ug/files/cost/5.exe
ransomnote
ATTENTION! Don't worry, you can return all your files! All your files like photos, 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-IbdGyCKhdr 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: 0175Asd374y5iuhld

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 8 IoCs

resource	yara_rule
behavioral2/memory/2816-2-0x0000000006DF0000-0x0000000006F0A000-memory.dmp	family_djvu
behavioral2/memory/2816-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2816-16-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2816-15-0x0000000006DF0000-0x0000000006F0A000-memory.dmp	family_djvu
behavioral2/memory/2816-14-0x0000000000400000-0x0000000004F0E000-memory.dmp	family_djvu
behavioral2/memory/400-24-0x0000000000400000-0x0000000004F0E000-memory.dmp	family_djvu
behavioral2/memory/400-27-0x0000000000400000-0x0000000004F0E000-memory.dmp	family_djvu
behavioral2/memory/400-28-0x0000000000400000-0x0000000004F0E000-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-1-5-21-805952410-2104024357-1716932545-1000\Control Panel\International\Geo\Nation	7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2396	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-1-5-21-805952410-2104024357-1716932545-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\112120fe-dd10-4c8d-bf99-c92064e32e67\\7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe\" --AutoStart"	7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.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
31	api.2ip.ua
32	api.2ip.ua
63	api.2ip.ua

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4712	2816	WerFault.exe	87

System Location Discovery: System Language Discovery 1 TTPs 3 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	7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2816	7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe
2816	7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe
400	7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe
400	7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2816 wrote to memory of 2396	2816	7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe	98
PID 2816 wrote to memory of 2396	2816	7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe	98
PID 2816 wrote to memory of 2396	2816	7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe	98
PID 2816 wrote to memory of 400	2816	7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe	99
PID 2816 wrote to memory of 400	2816	7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe	99
PID 2816 wrote to memory of 400	2816	7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe	99

C:\Users\Admin\AppData\Local\Temp\7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe
"C:\Users\Admin\AppData\Local\Temp\7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2816
- C:\Windows\SysWOW64\icacls.exe
  icacls "C:\Users\Admin\AppData\Local\112120fe-dd10-4c8d-bf99-c92064e32e67" /deny *S-1-1-0:(OI)(CI)(DE,DC)
  2⤵
  - Modifies file permissions
  - System Location Discovery: System Language Discovery
  PID:2396
- C:\Users\Admin\AppData\Local\Temp\7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe
  "C:\Users\Admin\AppData\Local\Temp\7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe" --Admin IsNotAutoStart IsNotTask
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:400
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2816 -s 2136
  2⤵
  - Program crash
  PID:4712

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2816 -ip 2816
1⤵
PID:548

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
c9be626e9715952e9b70f92f912b9787

SHA1
aa2e946d9ad9027172d0d321917942b7562d6abe

SHA256
c13e8d22800c200915f87f71c31185053e4e60ca25de2e41e160e09cd2d815d4

SHA512
7581b7c593785380e9db3ae760af85c1a889f607a3cd2aa5a2695a0e5a0fe8ee751578e88f7d8c997faeda804e2fc2655d859bee2832eace526ed4379edaa3f5

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

Filesize
530B

MD5
1fbb37f79b317a9a248e7c4ce4f5bac5

SHA1
0ff4d709ebf17be0c28e66dc8bf74672ca28362a

SHA256
6fb1b8e593cb0388f67ead35313a230f524657317ea86271b3a97362e5ec6ad9

SHA512
287e1d62c9ceb660965c266f677c467fbb997c2f5dcd1d63e185e266488aafc3489ac1d3feec81d10f01ce4a72e61a8bc4e124f137ce8675a220aa7797002e74

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12

Filesize
174B

MD5
a5e045045352027cd806b75d14be48f1

SHA1
4ad0ed42646f26fe469e43b097021271d9fa12b6

SHA256
a92a3871bcaf179793d12caa34c2b4e1dce31bce6dcafa19e0ee6ababd57bdf7

SHA512
af5748a0524c83b7eb01a856e1d85fd1aff0b21adb73af5a8165ffccb9206acb24eae197f077c213c098db6fa0c421330fe1494f0616d1d82a21f3a803cd785c

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

Filesize
170B

MD5
0e985b35525c47c41fefa16b9564854d

SHA1
627dc13f2deeba6c758d4d5361b4b9e9684735cd

SHA256
60790aa2c12801f3da8a45cc91f48ab8896554486482e5654ebae4446c65470f

SHA512
74a84e2628f5c98fae29c12545ea3c684f2bcdcf9f13a8f7730992c307576233c30152eb2f1f0093238d8467fba3a5d21088047644e0e743f8b94bdbaa0c9c35

Download Submit
C:\Users\Admin\AppData\Local\112120fe-dd10-4c8d-bf99-c92064e32e67\7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd.exe

Filesize
725KB

MD5
e8bbb6d921b79101aea7d906a1798f3d

SHA1
4fd59822cdedd1b194d27d2c01a9cde6222de1bb

SHA256
7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd

SHA512
c525e07c65c7be43aa90568f98253b397919cd0f597b1ba446fed51a578ca1aae4c93fa59e1345b20e3216a676ba35c89c67d6ced6bea68da44a53989fa4d656

Download Submit
memory/400-24-0x0000000000400000-0x0000000004F0E000-memory.dmp

Filesize
75.1MB

Download
memory/400-27-0x0000000000400000-0x0000000004F0E000-memory.dmp

Filesize
75.1MB

Download
memory/400-28-0x0000000000400000-0x0000000004F0E000-memory.dmp

Filesize
75.1MB

Download
memory/2816-15-0x0000000006DF0000-0x0000000006F0A000-memory.dmp

Filesize
1.1MB

Download
memory/2816-14-0x0000000000400000-0x0000000004F0E000-memory.dmp

Filesize
75.1MB

Download
memory/2816-16-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2816-1-0x0000000006CC0000-0x0000000006D5B000-memory.dmp

Filesize
620KB

Download
memory/2816-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2816-2-0x0000000006DF0000-0x0000000006F0A000-memory.dmp

Filesize
1.1MB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads