djvu | 80bb09731039f5d1f2674e8f388612ec127437ab1cf1866d50f28913f9549f77

General

Target

ea.exe
Size

700KB
MD5

85404be73c9d7963e5abdf714704af84
SHA1

607520db9e581571e73688b3117326a3de9362dd
SHA256

80bb09731039f5d1f2674e8f388612ec127437ab1cf1866d50f28913f9549f77
SHA512

38c2cbc82fd210127c261e2ade68a0b066774e0927911f1f8063826cc29bf976dfe4ef03fb9436360f0e4e08a14f566efbd1d01e71699a9a040577f9026dacf8
SSDEEP

12288:9I0oggJ0xaSKN/cj8Gg7EmSV1jX9PoyM3vDHfBt+45qJsD8VA3mKhreAaRU:GJGKNUj8pvSV9uy0L/Bt+40JqZ2nAaRU

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

http://zexeq.com/test2/get.php

Attributes

extension
.qapo
offline_id
VrBq0iLIRHjQLgVRLsN1WK8yFkTCRDCCvPkwnHt1
payload_url
http://uaery.top/dl/build2.exe

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

Signatures

Detected Djvu ransomware 19 IoCs

resource	yara_rule
behavioral2/memory/4172-2-0x0000000002490000-0x00000000025AB000-memory.dmp	family_djvu
behavioral2/memory/1152-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1152-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1152-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1152-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1152-19-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3132-23-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3132-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3132-26-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3132-33-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3132-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3132-49-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3132-55-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3132-66-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3132-67-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3132-69-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3132-70-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3132-71-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3132-72-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

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

Checks computer location settings 2 TTPs 2 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-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	ea.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	ea.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2012	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-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\aecd01ac-e017-4476-adaf-1c6be41cb5c9\\ea.exe\" --AutoStart"	ea.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
5	api.2ip.ua
6	api.2ip.ua
20	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4172 set thread context of 1152	4172	ea.exe	86
PID 3596 set thread context of 3132	3596	ea.exe	91

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

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1152	ea.exe
1152	ea.exe
3132	ea.exe
3132	ea.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 4172 wrote to memory of 1152	4172	ea.exe	86
PID 4172 wrote to memory of 1152	4172	ea.exe	86
PID 4172 wrote to memory of 1152	4172	ea.exe	86
PID 4172 wrote to memory of 1152	4172	ea.exe	86
PID 4172 wrote to memory of 1152	4172	ea.exe	86
PID 4172 wrote to memory of 1152	4172	ea.exe	86
PID 4172 wrote to memory of 1152	4172	ea.exe	86
PID 4172 wrote to memory of 1152	4172	ea.exe	86
PID 4172 wrote to memory of 1152	4172	ea.exe	86
PID 4172 wrote to memory of 1152	4172	ea.exe	86
PID 1152 wrote to memory of 2012	1152	ea.exe	88
PID 1152 wrote to memory of 2012	1152	ea.exe	88
PID 1152 wrote to memory of 2012	1152	ea.exe	88
PID 1152 wrote to memory of 3596	1152	ea.exe	89
PID 1152 wrote to memory of 3596	1152	ea.exe	89
PID 1152 wrote to memory of 3596	1152	ea.exe	89
PID 3596 wrote to memory of 3132	3596	ea.exe	91
PID 3596 wrote to memory of 3132	3596	ea.exe	91
PID 3596 wrote to memory of 3132	3596	ea.exe	91
PID 3596 wrote to memory of 3132	3596	ea.exe	91
PID 3596 wrote to memory of 3132	3596	ea.exe	91
PID 3596 wrote to memory of 3132	3596	ea.exe	91
PID 3596 wrote to memory of 3132	3596	ea.exe	91
PID 3596 wrote to memory of 3132	3596	ea.exe	91
PID 3596 wrote to memory of 3132	3596	ea.exe	91
PID 3596 wrote to memory of 3132	3596	ea.exe	91

C:\Users\Admin\AppData\Local\Temp\ea.exe
"C:\Users\Admin\AppData\Local\Temp\ea.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4172
- C:\Users\Admin\AppData\Local\Temp\ea.exe
  "C:\Users\Admin\AppData\Local\Temp\ea.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:1152
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\aecd01ac-e017-4476-adaf-1c6be41cb5c9" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2012
- - C:\Users\Admin\AppData\Local\Temp\ea.exe
    "C:\Users\Admin\AppData\Local\Temp\ea.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3596
  - - C:\Users\Admin\AppData\Local\Temp\ea.exe
      "C:\Users\Admin\AppData\Local\Temp\ea.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Checks computer location settings
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:3132

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
7fb5fa1534dcf77f2125b2403b30a0ee

SHA1
365d96812a69ac0a4611ea4b70a3f306576cc3ea

SHA256
33a39e9ec2133230533a686ec43760026e014a3828c703707acbc150fe40fd6f

SHA512
a9279fd60505a1bfeef6fb07834cad0fd5be02fd405573fc1a5f59b991e9f88f5e81c32fe910f69bdc6585e71f02559895149eaf49c25b8ff955459fd60c0d2e

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
58547d120a97c121ffcaa6d4c4434c37

SHA1
3ef724204daeeb6ebeb0b70908484fd2a69273a5

SHA256
d9eefcc893adc88bfc0b9cb246d848eead096ab43d4c7214f95a8ca65df99fdc

SHA512
1d01022002edd013d21e60d77fe1a536e092a20e230c6b648e6a3a5b492bcbb9f719a4247d3743fb65c9d8f9c7b16d644e6c864e98d5befe0d688c1c875f9d5b

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

Filesize
170B

MD5
cab69ceda75fb0f3fcd4e53b80f5e13a

SHA1
1c117bf258877e0dfbd4dabeef83c9ede0a05f92

SHA256
db4db0d9d20e84d78f0a8644345ea8a19a42102280ddd2606a5d2b7fc3bf7c16

SHA512
8daf9f5b7f179d6c00c0338d1618ec2887cd259d26d842aa438cc6d6766d5710cb1342904ba4cda9f1fd39436a8b34bf3fe425786c955c8484bd49657a530345

Download Submit
C:\Users\Admin\AppData\Local\0a67498c-3f52-48d4-b82d-d72dce66847f\build3.exe

Filesize
437B

MD5
6910426a598bc0b07dd6ca7c2faf5c22

SHA1
4304d65a08652b167453997e1464cc6ef034be23

SHA256
ebfef207462c29030b8a06068c8cbf1cfeae1304813b9cdbfa2d705b314bf692

SHA512
5e96757fa5daa336968aa07d5fe5525040a081a547dd6bad55bed4539ad76b3f96aabd38f461efdafa4a427963b2a3187cc40dfa60c74e6c6ddf738176381952

Download Submit
C:\Users\Admin\AppData\Local\aecd01ac-e017-4476-adaf-1c6be41cb5c9\ea.exe

Filesize
700KB

MD5
85404be73c9d7963e5abdf714704af84

SHA1
607520db9e581571e73688b3117326a3de9362dd

SHA256
80bb09731039f5d1f2674e8f388612ec127437ab1cf1866d50f28913f9549f77

SHA512
38c2cbc82fd210127c261e2ade68a0b066774e0927911f1f8063826cc29bf976dfe4ef03fb9436360f0e4e08a14f566efbd1d01e71699a9a040577f9026dacf8

Download Submit
C:\Users\Admin\AppData\Local\bowsakkdestx.txt

Filesize
449B

MD5
caa078f0348cda98328127c142e3bfed

SHA1
e38274d642c806a3affcca8f7e37b61f591c47e6

SHA256
91faeb982f34313750a83d74c5464abe4e01357d1a7ea4253973509bc0e9d219

SHA512
2e6a5c482b5226079c6b4bd9a706537c372a3b43962f64be6bdd281e3217f963316ef0eba38164890bdf14af6558eb26605320487f0a0c841be9bb813c2ee5d6

Download Submit
memory/1152-19-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1152-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1152-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1152-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1152-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3132-66-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3132-55-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3132-72-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3132-26-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3132-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3132-33-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3132-34-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3132-23-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3132-49-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3132-71-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3132-70-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3132-69-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3132-67-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3596-21-0x0000000000400000-0x000000000052E000-memory.dmp

Filesize
1.2MB

Download
memory/3596-25-0x0000000000400000-0x000000000052E000-memory.dmp

Filesize
1.2MB

Download
memory/4172-2-0x0000000002490000-0x00000000025AB000-memory.dmp

Filesize
1.1MB

Download
memory/4172-1-0x0000000002310000-0x00000000023B2000-memory.dmp

Filesize
648KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads