83874db257e7139addb01ab4b00cabbd2fb4e153363c4e5ef247822d6b94a0b1

General

Target

83874db257e7139addb01ab4b00cabbd2fb4e153363c4e5ef247822d6b94a0b1.jar
Size

48KB
MD5

2f8d204b747ed971a8bc8927b2e0898c
SHA1

80eea800f0f8c48a45531b6f82af86398b99324d
SHA256

83874db257e7139addb01ab4b00cabbd2fb4e153363c4e5ef247822d6b94a0b1
SHA512

8d0ca67a421a4ce3cfb0e16397a2f1645aef72a26c21d676577fe98252df108da4cdcfd72d3345f13acb0bb8324a3ac1d52f451db84ccb0c29bf0c320c175a85
SSDEEP

768:QLslteTZtLLRmcPSRE/amQ2eVkzI9tncxN0FPkA7CmiOU5hEjODuE8IphzItSeHj:Q6UPLFmcPwkehVkDxN01q3hIauKatS4j

Score

8^/10

evasion persistence

Malware Config

Signatures

Sets file to hidden 1 TTPs 2 IoCs
Modifies file attributes to stop it showing in Explorer etc.
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

1372 attrib.exe
1804 attrib.exe

pid	process
1372	attrib.exe
1804	attrib.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

reg.exereg.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\FgEYmxupx6 = "\"C:\\Program Files\\Java\\jre7\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\y2fXsUb6Fo\\m3RH1CkVxc.4tD\""	reg.exe
Key created	\REGISTRY\MACHINE\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\FgEYmxupx6 = "\"C:\\Program Files\\Java\\jre7\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\y2fXsUb6Fo\\m3RH1CkVxc.4tD\""	reg.exe

Drops desktop.ini file(s) 2 IoCs

Processes:

java.exeattrib.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\y2fXsUb6Fo\Desktop.ini	java.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\y2fXsUb6Fo\Desktop.ini	attrib.exe

Drops file in Windows directory 4 IoCs

Processes:

java.exejavaw.exe

description	ioc	process
File created	C:\Windows\tem	java.exe
File opened for modification	C:\Windows\tem	java.exe
File created	C:\Windows\tem	javaw.exe
File opened for modification	C:\Windows\tem	javaw.exe

Modifies registry key 1 TTPs 2 IoCs

Modify Registry
T1112

Processes:

reg.exereg.exe

pid process

1628 reg.exe
1936 reg.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

java.exejavaw.exe

pid process

1836 java.exe
784 javaw.exe

pid	process
1628	reg.exe
1936	reg.exe

pid	process
1836	java.exe
784	javaw.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

java.exejavaw.exe

description	pid	process	target process
PID 1836 wrote to memory of 1628	1836	java.exe	reg.exe
PID 1836 wrote to memory of 1628	1836	java.exe	reg.exe
PID 1836 wrote to memory of 1628	1836	java.exe	reg.exe
PID 1836 wrote to memory of 1372	1836	java.exe	attrib.exe
PID 1836 wrote to memory of 1372	1836	java.exe	attrib.exe
PID 1836 wrote to memory of 1372	1836	java.exe	attrib.exe
PID 1836 wrote to memory of 1804	1836	java.exe	attrib.exe
PID 1836 wrote to memory of 1804	1836	java.exe	attrib.exe
PID 1836 wrote to memory of 1804	1836	java.exe	attrib.exe
PID 1836 wrote to memory of 784	1836	java.exe	javaw.exe
PID 1836 wrote to memory of 784	1836	java.exe	javaw.exe
PID 1836 wrote to memory of 784	1836	java.exe	javaw.exe
PID 784 wrote to memory of 1936	784	javaw.exe	reg.exe
PID 784 wrote to memory of 1936	784	javaw.exe	reg.exe
PID 784 wrote to memory of 1936	784	javaw.exe	reg.exe

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

1372 attrib.exe
1804 attrib.exe

pid	process
1372	attrib.exe
1804	attrib.exe

C:\Windows\system32\java.exe
java -jar C:\Users\Admin\AppData\Local\Temp\83874db257e7139addb01ab4b00cabbd2fb4e153363c4e5ef247822d6b94a0b1.jar
1⤵
- Drops desktop.ini file(s)
- Drops file in Windows directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1836
- C:\Windows\system32\reg.exe
  reg add HKLM\Software\Microsoft\Windows\CurrentVersion\Run /v FgEYmxupx6 /t REG_SZ /d "\"C:\Program Files\Java\jre7\bin\javaw.exe\" -jar \"C:\Users\Admin\AppData\Roaming\y2fXsUb6Fo\m3RH1CkVxc.4tD\"" /f
  2⤵
  - Adds Run key to start application
  - Modifies registry key
  PID:1628
- C:\Windows\system32\attrib.exe
  attrib +s +h +r "C:\Users\Admin\AppData\Roaming\y2fXsUb6Fo\*.*"
  2⤵
  - Sets file to hidden
  - Drops desktop.ini file(s)
  - Views/modifies file attributes
  PID:1372
- C:\Windows\system32\attrib.exe
  attrib +s +h +r "C:\Users\Admin\AppData\Roaming\y2fXsUb6Fo"
  2⤵
  - Sets file to hidden
  - Views/modifies file attributes
  PID:1804
- C:\Program Files\Java\jre7\bin\javaw.exe
  "C:\Program Files\Java\jre7\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Roaming\y2fXsUb6Fo\m3RH1CkVxc.4tD"
  2⤵
  - Drops file in Windows directory
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:784
- - C:\Windows\system32\reg.exe
    reg add HKLM\Software\Microsoft\Windows\CurrentVersion\Run /v FgEYmxupx6 /t REG_SZ /d "\"C:\Program Files\Java\jre7\bin\javaw.exe\" -jar \"C:\Users\Admin\AppData\Roaming\y2fXsUb6Fo\m3RH1CkVxc.4tD\"" /f
    3⤵
    - Adds Run key to start application
    - Modifies registry key
    PID:1936

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

2

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\y2fXsUb6Fo\Desktop.ini

Filesize
63B

MD5
e783bdd20a976eaeaae1ff4624487420

SHA1
c2a44fab9df00b3e11582546b16612333c2f9286

SHA256
2f65fa9c7ed712f493782abf91467f869419a2f8b5adf23b44019c08190fa3f3

SHA512
8c883678e4625ef44f4885b8c6d7485196774f9cb0b9eee7dd18711749bcae474163df9965effcd13ecd1a33cd7265010c152f8504d6013e4f4d85d68a901a80

Download Submit
C:\Users\Admin\AppData\Roaming\y2fXsUb6Fo\m3RH1CkVxc.4tD

Filesize
48KB

MD5
2f8d204b747ed971a8bc8927b2e0898c

SHA1
80eea800f0f8c48a45531b6f82af86398b99324d

SHA256
83874db257e7139addb01ab4b00cabbd2fb4e153363c4e5ef247822d6b94a0b1

SHA512
8d0ca67a421a4ce3cfb0e16397a2f1645aef72a26c21d676577fe98252df108da4cdcfd72d3345f13acb0bb8324a3ac1d52f451db84ccb0c29bf0c320c175a85

Download Submit
memory/784-70-0x0000000000000000-mapping.dmp

Download
memory/784-81-0x0000000002170000-0x0000000005170000-memory.dmp

Filesize
48.0MB

Download
memory/784-83-0x0000000002170000-0x0000000005170000-memory.dmp

Filesize
48.0MB

Download
memory/1372-66-0x0000000000000000-mapping.dmp

Download
memory/1628-65-0x0000000000000000-mapping.dmp

Download
memory/1804-67-0x0000000000000000-mapping.dmp

Download
memory/1836-54-0x000007FEFB6A1000-0x000007FEFB6A3000-memory.dmp

Filesize
8KB

Download
memory/1836-64-0x00000000022F0000-0x00000000052F0000-memory.dmp

Filesize
48.0MB

Download
memory/1936-82-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads