djvu | e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f

General

Target

e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe
Size

709KB
MD5

b7cb7f2b5cd9bd047710650295dc88f7
SHA1

3740ba8e89055cb0f5068ec9176b05c77432e799
SHA256

e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f
SHA512

e6bd45366d067dcc6cdcdc4d917c4e819942caccf22b64a1b1cf45199cdbf58defa0773a8d6a76c0672db2824a724018253efb0db1a0baf0c2f105d07758b471
SSDEEP

12288:9CwgCcyMy1Nncixi2NWXCAcrIQBjljKsFKfFDKZNF:9cCp9KGiAAcUwjljKAK8ZNF

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

http://cajgtus.com/lancer/get.php

Attributes

extension
.qual
offline_id
KLbRmn6on3AXGFgDLGtd0IkHmV7uHw9VxlcxO5t1
payload_url
ransomnote
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rsa_pubkey.plain

Signatures

Detected Djvu ransomware 9 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4136-2-0x0000000000B40000-0x0000000000C5B000-memory.dmp	family_djvu
behavioral2/memory/316-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/316-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/316-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/316-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/316-19-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1584-23-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1584-26-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1584-24-0x0000000000400000-0x0000000000537000-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

Processes:

e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2629364133-3182087385-364449604-1000\Control Panel\International\Geo\Nation	e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

Processes:

icacls.exe

pid	Process
2032	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2629364133-3182087385-364449604-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\e2f47c59-facb-419f-bd83-aca7b1f44b92\\e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe\" --AutoStart"	e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.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.

Processes:

flow	ioc
13	api.2ip.ua
14	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

Processes:

e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exee01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe

description	pid	Process	procid_target
PID 4136 set thread context of 316	4136	e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe	87
PID 1588 set thread context of 1584	1588	e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe	94

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

System Information Discovery
T1082

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
4888	1584	WerFault.exe	94

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

Processes:

e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exee01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exee01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exee01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exeicacls.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe

pid	Process
316	e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe
316	e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exee01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exee01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe

description	pid	Process	procid_target
PID 4136 wrote to memory of 316	4136	e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe	87
PID 4136 wrote to memory of 316	4136	e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe	87
PID 4136 wrote to memory of 316	4136	e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe	87
PID 4136 wrote to memory of 316	4136	e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe	87
PID 4136 wrote to memory of 316	4136	e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe	87
PID 4136 wrote to memory of 316	4136	e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe	87
PID 4136 wrote to memory of 316	4136	e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe	87
PID 4136 wrote to memory of 316	4136	e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe	87
PID 4136 wrote to memory of 316	4136	e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe	87
PID 4136 wrote to memory of 316	4136	e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe	87
PID 316 wrote to memory of 2032	316	e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe	88
PID 316 wrote to memory of 2032	316	e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe	88
PID 316 wrote to memory of 2032	316	e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe	88
PID 316 wrote to memory of 1588	316	e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe	89
PID 316 wrote to memory of 1588	316	e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe	89
PID 316 wrote to memory of 1588	316	e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe	89
PID 1588 wrote to memory of 1584	1588	e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe	94
PID 1588 wrote to memory of 1584	1588	e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe	94
PID 1588 wrote to memory of 1584	1588	e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe	94
PID 1588 wrote to memory of 1584	1588	e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe	94
PID 1588 wrote to memory of 1584	1588	e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe	94
PID 1588 wrote to memory of 1584	1588	e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe	94
PID 1588 wrote to memory of 1584	1588	e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe	94
PID 1588 wrote to memory of 1584	1588	e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe	94
PID 1588 wrote to memory of 1584	1588	e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe	94
PID 1588 wrote to memory of 1584	1588	e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe	94

C:\Users\Admin\AppData\Local\Temp\e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe
"C:\Users\Admin\AppData\Local\Temp\e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4136
- C:\Users\Admin\AppData\Local\Temp\e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe
  "C:\Users\Admin\AppData\Local\Temp\e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.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:316
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\e2f47c59-facb-419f-bd83-aca7b1f44b92" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2032
- - C:\Users\Admin\AppData\Local\Temp\e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe
    "C:\Users\Admin\AppData\Local\Temp\e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1588
  - - C:\Users\Admin\AppData\Local\Temp\e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe
      "C:\Users\Admin\AppData\Local\Temp\e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      PID:1584
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1584 -s 568
        5⤵
        Program crash
        
        PID:4888

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1584 -ip 1584
1⤵
PID:1944

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\Local\e2f47c59-facb-419f-bd83-aca7b1f44b92\e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f.exe

Filesize
709KB

MD5
b7cb7f2b5cd9bd047710650295dc88f7

SHA1
3740ba8e89055cb0f5068ec9176b05c77432e799

SHA256
e01c0429a58b33013305aab35ef863cd2b88962e479e39566a687ca37c68510f

SHA512
e6bd45366d067dcc6cdcdc4d917c4e819942caccf22b64a1b1cf45199cdbf58defa0773a8d6a76c0672db2824a724018253efb0db1a0baf0c2f105d07758b471

Download Submit
memory/316-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/316-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/316-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/316-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/316-19-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1584-23-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1584-26-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1584-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1588-21-0x0000000000400000-0x0000000000541000-memory.dmp

Filesize
1.3MB

Download
memory/1588-27-0x0000000000400000-0x0000000000541000-memory.dmp

Filesize
1.3MB

Download
memory/4136-1-0x0000000000AA0000-0x0000000000B36000-memory.dmp

Filesize
600KB

Download
memory/4136-2-0x0000000000B40000-0x0000000000C5B000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads