djvu | 95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4

General

Target

95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4.exe
Size

765KB
MD5

52f22c2a5b2c339e75f176bf5bfcb3f3
SHA1

0a3b96aa59d5eda04c731bfb9c2ba7fef997d1b9
SHA256

95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4
SHA512

ec5f24367c46ff558110022ad8e1106fe5d1d9b9f94cf423b0cd1e1cd7d5ee3111e16cc12ccf3d6e65c5a5d5358691726172e33fb6338e1b7291be9566766da8
SSDEEP

12288:mokzmesNcOJCG4jm2E2SLZJsiXlg8XGB2P3yo1jaUPC4t56ha6DJof5:izk/QDo2SVJsylBXjVNPyvu

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

http://zexeq.com/test1/get.php

Attributes

extension
.jzeq
offline_id
4FMaMDK6uqPZOxJj64677pqiSGF54A1Dam9zfUt1
payload_url
http://colisumy.com/dl/build2.exe

http://zexeq.com/files/1/build3.exe
ransomnote
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rsa_pubkey.plain

Signatures

Detected Djvu ransomware 9 IoCs

resource	yara_rule
behavioral1/memory/4168-2-0x0000000002630000-0x000000000274B000-memory.dmp	family_djvu
behavioral1/memory/4876-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4876-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4876-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4876-7-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4876-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3132-28-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3132-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3132-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware 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-1-5-21-3125601242-331447593-1512828465-1000\Control Panel\International\Geo\Nation	95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
580	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-1-5-21-3125601242-331447593-1512828465-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\94d8d0ba-3a5d-439e-88c5-04e88d4186c3\\95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4.exe\" --AutoStart"	95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
70	api.2ip.ua
69	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4168 set thread context of 4876	4168	95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4.exe	94
PID 760 set thread context of 3132	760	95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4.exe	109

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
4360	3132	WerFault.exe	109

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4876	95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4.exe
4876	95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 4168 wrote to memory of 4876	4168	95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4.exe	94
PID 4168 wrote to memory of 4876	4168	95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4.exe	94
PID 4168 wrote to memory of 4876	4168	95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4.exe	94
PID 4168 wrote to memory of 4876	4168	95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4.exe	94
PID 4168 wrote to memory of 4876	4168	95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4.exe	94
PID 4168 wrote to memory of 4876	4168	95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4.exe	94
PID 4168 wrote to memory of 4876	4168	95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4.exe	94
PID 4168 wrote to memory of 4876	4168	95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4.exe	94
PID 4168 wrote to memory of 4876	4168	95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4.exe	94
PID 4168 wrote to memory of 4876	4168	95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4.exe	94
PID 4876 wrote to memory of 580	4876	95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4.exe	98
PID 4876 wrote to memory of 580	4876	95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4.exe	98
PID 4876 wrote to memory of 580	4876	95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4.exe	98
PID 4876 wrote to memory of 760	4876	95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4.exe	102
PID 4876 wrote to memory of 760	4876	95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4.exe	102
PID 4876 wrote to memory of 760	4876	95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4.exe	102
PID 760 wrote to memory of 3132	760	95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4.exe	109
PID 760 wrote to memory of 3132	760	95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4.exe	109
PID 760 wrote to memory of 3132	760	95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4.exe	109
PID 760 wrote to memory of 3132	760	95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4.exe	109
PID 760 wrote to memory of 3132	760	95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4.exe	109
PID 760 wrote to memory of 3132	760	95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4.exe	109
PID 760 wrote to memory of 3132	760	95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4.exe	109
PID 760 wrote to memory of 3132	760	95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4.exe	109
PID 760 wrote to memory of 3132	760	95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4.exe	109
PID 760 wrote to memory of 3132	760	95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4.exe	109

C:\Users\Admin\AppData\Local\Temp\95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4.exe
"C:\Users\Admin\AppData\Local\Temp\95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4168
- C:\Users\Admin\AppData\Local\Temp\95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4.exe
  "C:\Users\Admin\AppData\Local\Temp\95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4876
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\94d8d0ba-3a5d-439e-88c5-04e88d4186c3" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:580
- - C:\Users\Admin\AppData\Local\Temp\95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4.exe
    "C:\Users\Admin\AppData\Local\Temp\95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:760
  - - C:\Users\Admin\AppData\Local\Temp\95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4.exe
      "C:\Users\Admin\AppData\Local\Temp\95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      PID:3132
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3132 -s 568
        5⤵
        Program crash
        
        PID:4360

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 3132 -ip 3132
1⤵
PID:4144

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\94d8d0ba-3a5d-439e-88c5-04e88d4186c3\95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4.exe

Filesize
765KB

MD5
52f22c2a5b2c339e75f176bf5bfcb3f3

SHA1
0a3b96aa59d5eda04c731bfb9c2ba7fef997d1b9

SHA256
95e9cb14d98addba28afd394f68a90d4500fa5396a6b27fdbe5024bd17f972b4

SHA512
ec5f24367c46ff558110022ad8e1106fe5d1d9b9f94cf423b0cd1e1cd7d5ee3111e16cc12ccf3d6e65c5a5d5358691726172e33fb6338e1b7291be9566766da8

Download Submit
memory/760-26-0x00000000009F0000-0x0000000000A86000-memory.dmp

Filesize
600KB

Download
memory/3132-28-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3132-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3132-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4168-1-0x0000000002590000-0x0000000002625000-memory.dmp

Filesize
596KB

Download
memory/4168-2-0x0000000002630000-0x000000000274B000-memory.dmp

Filesize
1.1MB

Download
memory/4876-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4876-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4876-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4876-7-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4876-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads