djvu | 65095394b8ee9ff4db8b8b7d88dfb1a3936450010fdd7266e9334e323b6c0da2

Analysis

max time kernel
143s
max time network
124s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07-09-2024 03:26

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General

Target

liar.exe
Size

704KB
MD5

eeca05d25df9dd3ac6649d544af8b130
SHA1

02792783b0dcce6668431e6f00c82f25a9b5317a
SHA256

65095394b8ee9ff4db8b8b7d88dfb1a3936450010fdd7266e9334e323b6c0da2
SHA512

a7ffe32a4fbb976287d63ca143cd003fd2c5285bcb93f4e8270c16b582dc974e49ae1b33aa6197addfbb3e179b557071f1ef0e44c9cd8eb5fdab53d55ae04143
SSDEEP

12288:NmiX7brhCcIDkqBiBXrY0oZCMVzD/KAKExWfn52rFII74EbFOVwPBOu:wiXlCVDDfZvVHvKjf50IK1Rmw5f

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

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

Attributes

extension
.goaq
offline_id
zMrgM3QgNJsLARd9vs9a31qnKMjRqxjLT6s9OQt1
payload_url
http://uaery.top/dl/build2.exe

http://zexeq.com/files/1/build3.exe
ransomnote
ATTENTION! Don't worry, you can return all your files! All your files like pictures, 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-rayImYlyWe 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: 0656Usjf

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 16 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2196-2-0x0000000001E60000-0x0000000001F7B000-memory.dmp	family_djvu
behavioral1/memory/2648-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2648-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2648-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2648-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2612-38-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2612-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2612-53-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2612-52-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2612-62-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2612-68-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2612-79-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2612-80-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2612-83-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2612-82-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2612-84-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

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

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

Processes:

icacls.exe

pid	Process
2592	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

liar.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\62414578-f458-42f9-9861-d92a90c2f859\\liar.exe\" --AutoStart"	liar.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.

Processes:

flow	ioc
4	api.2ip.ua
9	api.2ip.ua
3	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

Processes:

liar.exeliar.exe

description	pid	Process	procid_target
PID 2196 set thread context of 2648	2196	liar.exe	31
PID 2692 set thread context of 2612	2692	liar.exe	34

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

Processes:

liar.exeliar.exeliar.exeicacls.exeliar.exe

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

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

liar.exeliar.exe

pid	Process
2648	liar.exe
2648	liar.exe
2612	liar.exe
2612	liar.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

liar.exeliar.exeliar.exe

description	pid	Process	procid_target
PID 2196 wrote to memory of 2648	2196	liar.exe	31
PID 2196 wrote to memory of 2648	2196	liar.exe	31
PID 2196 wrote to memory of 2648	2196	liar.exe	31
PID 2196 wrote to memory of 2648	2196	liar.exe	31
PID 2196 wrote to memory of 2648	2196	liar.exe	31
PID 2196 wrote to memory of 2648	2196	liar.exe	31
PID 2196 wrote to memory of 2648	2196	liar.exe	31
PID 2196 wrote to memory of 2648	2196	liar.exe	31
PID 2196 wrote to memory of 2648	2196	liar.exe	31
PID 2196 wrote to memory of 2648	2196	liar.exe	31
PID 2196 wrote to memory of 2648	2196	liar.exe	31
PID 2648 wrote to memory of 2592	2648	liar.exe	32
PID 2648 wrote to memory of 2592	2648	liar.exe	32
PID 2648 wrote to memory of 2592	2648	liar.exe	32
PID 2648 wrote to memory of 2592	2648	liar.exe	32
PID 2648 wrote to memory of 2692	2648	liar.exe	33
PID 2648 wrote to memory of 2692	2648	liar.exe	33
PID 2648 wrote to memory of 2692	2648	liar.exe	33
PID 2648 wrote to memory of 2692	2648	liar.exe	33
PID 2692 wrote to memory of 2612	2692	liar.exe	34
PID 2692 wrote to memory of 2612	2692	liar.exe	34
PID 2692 wrote to memory of 2612	2692	liar.exe	34
PID 2692 wrote to memory of 2612	2692	liar.exe	34
PID 2692 wrote to memory of 2612	2692	liar.exe	34
PID 2692 wrote to memory of 2612	2692	liar.exe	34
PID 2692 wrote to memory of 2612	2692	liar.exe	34
PID 2692 wrote to memory of 2612	2692	liar.exe	34
PID 2692 wrote to memory of 2612	2692	liar.exe	34
PID 2692 wrote to memory of 2612	2692	liar.exe	34
PID 2692 wrote to memory of 2612	2692	liar.exe	34

C:\Users\Admin\AppData\Local\Temp\liar.exe
"C:\Users\Admin\AppData\Local\Temp\liar.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2196
- C:\Users\Admin\AppData\Local\Temp\liar.exe
  "C:\Users\Admin\AppData\Local\Temp\liar.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2648
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\62414578-f458-42f9-9861-d92a90c2f859" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2592
- - C:\Users\Admin\AppData\Local\Temp\liar.exe
    "C:\Users\Admin\AppData\Local\Temp\liar.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2692
  - - C:\Users\Admin\AppData\Local\Temp\liar.exe
      "C:\Users\Admin\AppData\Local\Temp\liar.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2612

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

File and Directory Permissions Modification

T1222

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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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
9d61bedd27f170a9e5794a18136f5702

SHA1
b1df4cfe48a03c65e9df1e3c20f5333625a2db44

SHA256
03f62ee02a139aa27c4c8f991eef054058a94f5323e1e7ed684b674c72ee3788

SHA512
96b57febe936b3277f0fc80456c4c2516fb4d64eabf118b5a27022441e42d588e6d262c93b216129c7f62d518fe0b976da707c7e9b438646f47e370aabc01ab9

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
e88e3a215412a9e46a7c278af8801c0e

SHA1
642f32a9f16ffa90c6da84e200ab937361d60185

SHA256
39c38f4dc04b9522a2772c5dbd33c1a419e0863111dc1cc0b36948e8d65900a7

SHA512
a6f42a5453fa64dc982b9080d122f602ce60382ec0296b4a218d704e540c66755e443e86d088363425e684261a7beee6042cd1808e06bebe5169063f46c8df6c

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

Filesize
170B

MD5
a07f77fab75c3d8f59cc306ded0107ec

SHA1
c96b3ec4c476192a358b8a27df91cace4b8006b8

SHA256
2ea5d789597ccc9a6c70d0131583a234d71c4b5969af265e4eac2b475abf3b16

SHA512
d6f0ba5e5cbcbec320ac150c3d183f4a3efc3472364f4615f607d38cbd9f72d675ff5591d1797a15a0fd835482f775af0337eab8df9025596ab8a0118129667e

Download Submit
C:\Users\Admin\AppData\Local\62414578-f458-42f9-9861-d92a90c2f859\liar.exe

Filesize
704KB

MD5
eeca05d25df9dd3ac6649d544af8b130

SHA1
02792783b0dcce6668431e6f00c82f25a9b5317a

SHA256
65095394b8ee9ff4db8b8b7d88dfb1a3936450010fdd7266e9334e323b6c0da2

SHA512
a7ffe32a4fbb976287d63ca143cd003fd2c5285bcb93f4e8270c16b582dc974e49ae1b33aa6197addfbb3e179b557071f1ef0e44c9cd8eb5fdab53d55ae04143

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabE89A.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

Filesize
449B

MD5
caa078f0348cda98328127c142e3bfed

SHA1
e38274d642c806a3affcca8f7e37b61f591c47e6

SHA256
91faeb982f34313750a83d74c5464abe4e01357d1a7ea4253973509bc0e9d219

SHA512
2e6a5c482b5226079c6b4bd9a706537c372a3b43962f64be6bdd281e3217f963316ef0eba38164890bdf14af6558eb26605320487f0a0c841be9bb813c2ee5d6

Download Submit
C:\Users\Admin\AppData\Local\cfa0b686-96b5-4d39-9c3c-1fabe0d1f1c0\build3.exe

Filesize
437B

MD5
6910426a598bc0b07dd6ca7c2faf5c22

SHA1
4304d65a08652b167453997e1464cc6ef034be23

SHA256
ebfef207462c29030b8a06068c8cbf1cfeae1304813b9cdbfa2d705b314bf692

SHA512
5e96757fa5daa336968aa07d5fe5525040a081a547dd6bad55bed4539ad76b3f96aabd38f461efdafa4a427963b2a3187cc40dfa60c74e6c6ddf738176381952

Download Submit
memory/2196-7-0x0000000000670000-0x0000000000701000-memory.dmp

Filesize
580KB

Download
memory/2196-0-0x0000000000670000-0x0000000000701000-memory.dmp

Filesize
580KB

Download
memory/2196-1-0x0000000000670000-0x0000000000701000-memory.dmp

Filesize
580KB

Download
memory/2196-2-0x0000000001E60000-0x0000000001F7B000-memory.dmp

Filesize
1.1MB

Download
memory/2612-62-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2612-68-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2612-84-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2612-82-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2612-38-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2612-83-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2612-80-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2612-79-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2612-53-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2612-52-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2612-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2648-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2648-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2648-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2648-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2648-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2692-31-0x0000000000260000-0x00000000002F1000-memory.dmp

Filesize
580KB

Download
memory/2692-32-0x0000000000400000-0x00000000005F3000-memory.dmp

Filesize
1.9MB

Download
memory/2692-39-0x0000000000400000-0x00000000005F3000-memory.dmp

Filesize
1.9MB

Download