9045fd0a805e07c7e6367fb3cb62f8121964056894cee3b56f6f85feddce92f7

Analysis

max time kernel
176s
max time network
135s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
23-11-2022 07:06

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General

Target

fcymhfmvy.jar
Size

91KB
MD5

3bbdbc10682111317bef9f19b6dbb95e
SHA1

135efb10366e837601e01cec75999662abb87a80
SHA256

9045fd0a805e07c7e6367fb3cb62f8121964056894cee3b56f6f85feddce92f7
SHA512

858f62f75d3eb1c4f7fbef9c92cd10e26e5326484e5557a7e1a6bb140413470c2364b0f44383a166e3517d1d759775c17baa46560bf13768850cf3b1573b1170
SSDEEP

1536:gWXEFve11Urc5vdk1/IMXamHsdnzbPxy0Is1SeWOXSlrIzHs7S+GQp5Oc9P:5gvLcU1/B85bJy0b0OX1js7LF539P

Score

7^/10

persistence

Malware Config

Signatures

Loads dropped DLL 1 IoCs

Processes:

java.exe

pid process

1044 java.exe

pid	process
1044	java.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

java.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fcymhfmvy = "\"C:\\Program Files\\Java\\jre7\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\fcymhfmvy.jar\""	java.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fcymhfmvy = "\"C:\\Program Files\\Java\\jre7\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\fcymhfmvy.jar\""	java.exe

Drops file in Program Files directory 1 IoCs

Processes:

java.exe

description ioc process

File created C:\Program Files\Java\jre7\fcymhfmvy.jar java.exe

description	ioc	process
File created	C:\Program Files\Java\jre7\fcymhfmvy.jar	java.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

java.exejava.exejava.exe

description	pid	process	target process
PID 880 wrote to memory of 1056	880	java.exe	java.exe
PID 880 wrote to memory of 1056	880	java.exe	java.exe
PID 880 wrote to memory of 1056	880	java.exe	java.exe
PID 1056 wrote to memory of 1044	1056	java.exe	java.exe
PID 1056 wrote to memory of 1044	1056	java.exe	java.exe
PID 1056 wrote to memory of 1044	1056	java.exe	java.exe
PID 1044 wrote to memory of 1268	1044	java.exe	java.exe
PID 1044 wrote to memory of 1268	1044	java.exe	java.exe
PID 1044 wrote to memory of 1268	1044	java.exe	java.exe

C:\Windows\system32\java.exe
java -jar C:\Users\Admin\AppData\Local\Temp\fcymhfmvy.jar
1⤵
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:880

C:\Program Files\Java\jre7\bin\java.exe
"C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Program Files\Java\jre7\fcymhfmvy.jar"
2⤵
- Suspicious use of WriteProcessMemory
PID:1056

C:\Program Files\Java\jre7\bin\java.exe
"C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Users\Admin\fcymhfmvy.jar"
3⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1044

C:\Program Files\Java\jre7\bin\java.exe
"C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\fcymhfmvy.jar"
4⤵
PID:1268

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files\Java\jre7\fcymhfmvy.jar

Filesize
91KB

MD5
3bbdbc10682111317bef9f19b6dbb95e

SHA1
135efb10366e837601e01cec75999662abb87a80

SHA256
9045fd0a805e07c7e6367fb3cb62f8121964056894cee3b56f6f85feddce92f7

SHA512
858f62f75d3eb1c4f7fbef9c92cd10e26e5326484e5557a7e1a6bb140413470c2364b0f44383a166e3517d1d759775c17baa46560bf13768850cf3b1573b1170

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-1214520366-621468234-4062160515-1000\83aa4cc77f591dfc2374580bbd95f6ba_48ba80a0-b4f2-4449-9b22-a470b66c8a87

Filesize
45B

MD5
c8366ae350e7019aefc9d1e6e6a498c6

SHA1
5731d8a3e6568a5f2dfbbc87e3db9637df280b61

SHA256
11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238

SHA512
33c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd

Download Submit
C:\Users\Admin\AppData\Roaming\fcymhfmvy.jar

Filesize
91KB

MD5
3bbdbc10682111317bef9f19b6dbb95e

SHA1
135efb10366e837601e01cec75999662abb87a80

SHA256
9045fd0a805e07c7e6367fb3cb62f8121964056894cee3b56f6f85feddce92f7

SHA512
858f62f75d3eb1c4f7fbef9c92cd10e26e5326484e5557a7e1a6bb140413470c2364b0f44383a166e3517d1d759775c17baa46560bf13768850cf3b1573b1170

Download Submit
C:\Users\Admin\fcymhfmvy.jar

Filesize
91KB

MD5
3bbdbc10682111317bef9f19b6dbb95e

SHA1
135efb10366e837601e01cec75999662abb87a80

SHA256
9045fd0a805e07c7e6367fb3cb62f8121964056894cee3b56f6f85feddce92f7

SHA512
858f62f75d3eb1c4f7fbef9c92cd10e26e5326484e5557a7e1a6bb140413470c2364b0f44383a166e3517d1d759775c17baa46560bf13768850cf3b1573b1170

Download Submit
C:\Users\Admin\lib\jna-5.5.0.jar

Filesize
1.4MB

MD5
acfb5b5fd9ee10bf69497792fd469f85

SHA1
0e0845217c4907822403912ad6828d8e0b256208

SHA256
b308faebfe4ed409de8410e0a632d164b2126b035f6eacff968d3908cafb4d9e

SHA512
e52575f58a195ceb3bd16b9740eadf5bc5b1d4d63c0734e8e5fd1d1776aa2d068d2e4c7173b83803f95f72c0a6759ae1c9b65773c734250d4cfcdf47a19f82aa

Download Submit
C:\Users\Admin\lib\jna-platform-5.5.0.jar

Filesize
2.6MB

MD5
2f4a99c2758e72ee2b59a73586a2322f

SHA1
af38e7c4d0fc73c23ecd785443705bfdee5b90bf

SHA256
24d81621f82ac29fcdd9a74116031f5907a2343158e616f4573bbfa2434ae0d5

SHA512
b860459a0d3bf7ccb600a03aa1d2ac0358619ee89b2b96ed723541e182b6fdab53aefef7992acb4e03fca67aa47cbe3907b1e6060a60b57ed96c4e00c35c7494

Download Submit
C:\Users\Admin\lib\sqlite-jdbc-3.14.2.1.jar

Filesize
4.1MB

MD5
b33387e15ab150a7bf560abdc73c3bec

SHA1
66b8075784131f578ef893fd7674273f709b9a4c

SHA256
2eae3dea1c3dde6104c49f9601074b6038ff6abcf3be23f4b56f6720a4f6a491

SHA512
25cfb0d6ce35d0bcb18527d3aa12c63ecb2d9c1b8b78805d1306e516c13480b79bb0d74730aa93bd1752f9ac2da9fdd51781c48844cea2fd52a06c62852c8279

Download Submit
C:\Users\Admin\lib\system-hook-3.5.jar

Filesize
772KB

MD5
e1aa38a1e78a76a6de73efae136cdb3a

SHA1
c463da71871f780b2e2e5dba115d43953b537daf

SHA256
2ddda8af6faef8bde46acf43ec546603180bcf8dcb2e5591fff8ac9cd30b5609

SHA512
fee16fe9364926ec337e52f551fd62ed81984808a847de2fd68ff29b6c5da0dcc04ef6d8977f0fe675662a7d2ea1065cdcdd2a5259446226a7c7c5516bd7d60d

Download Submit
\Users\Admin\AppData\Local\Temp\jna-63116079\jna8719478682004269582.dll

Filesize
241KB

MD5
e02979ecd43bcc9061eb2b494ab5af50

SHA1
3122ac0e751660f646c73b10c4f79685aa65c545

SHA256
a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

SHA512
1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

Download Submit
memory/880-54-0x000007FEFBCB1000-0x000007FEFBCB3000-memory.dmp

Filesize
8KB

Download
memory/880-65-0x0000000002280000-0x0000000005280000-memory.dmp

Filesize
48.0MB

Download
memory/880-64-0x0000000002280000-0x0000000005280000-memory.dmp

Filesize
48.0MB

Download
memory/1044-79-0x0000000000000000-mapping.dmp

Download
memory/1044-87-0x00000000021E0000-0x00000000051E0000-memory.dmp

Filesize
48.0MB

Download
memory/1056-78-0x0000000002140000-0x0000000005140000-memory.dmp

Filesize
48.0MB

Download
memory/1056-77-0x0000000002140000-0x0000000005140000-memory.dmp

Filesize
48.0MB

Download
memory/1056-66-0x0000000000000000-mapping.dmp

Download
memory/1268-98-0x0000000000000000-mapping.dmp

Download
memory/1268-110-0x0000000002190000-0x0000000005190000-memory.dmp

Filesize
48.0MB

Download
memory/1268-111-0x0000000002190000-0x0000000005190000-memory.dmp

Filesize
48.0MB

Download