f2be302712cf964184b2817333fb2a30ddb27ce667af58228fbc0056fe0b360a

General

Target

f2be302712cf964184b2817333fb2a30ddb27ce667af58228fbc0056fe0b360a.jar
Size

49KB
MD5

c083fea491f147194d3b90d4e48cfa49
SHA1

a5af55828ff27ea611e2eca3f19301297572ef7d
SHA256

f2be302712cf964184b2817333fb2a30ddb27ce667af58228fbc0056fe0b360a
SHA512

c6209ab3684de5e15a4f9a3f2c87d659f63635916945014df6adffdb5126a5bd8c0aaaaf529e5a94aeb922a1136b85bdffbec2cae1bc72cfc4b1104b3bf70f98
SSDEEP

768:9k6CTyR6z0gST8bwui6s0fSxHmB55j25d8jNiTMrHaKFj/ejtTOERqR:9k6C547T4wGsjFC5s5UNEs6KEjtCP

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

pid	Process
2828	attrib.exe
2700	attrib.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\DOsW1fb3MJ = "\"C:\\Program Files\\Java\\jre1.8.0_66\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\BRMEuz4akD\\puyx8f9QIQ.txt\""	reg.exe
Key created	\REGISTRY\MACHINE\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\DOsW1fb3MJ = "\"C:\\Program Files\\Java\\jre1.8.0_66\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\BRMEuz4akD\\puyx8f9QIQ.txt\""	reg.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\BRMEuz4akD\Desktop.ini	java.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\BRMEuz4akD\Desktop.ini	attrib.exe

Drops file in Windows directory 4 IoCs

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

pid	Process
1956	reg.exe
3632	reg.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4460	java.exe
884	javaw.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4460 wrote to memory of 1956	4460	java.exe	81
PID 4460 wrote to memory of 1956	4460	java.exe	81
PID 4460 wrote to memory of 2828	4460	java.exe	82
PID 4460 wrote to memory of 2828	4460	java.exe	82
PID 4460 wrote to memory of 2700	4460	java.exe	84
PID 4460 wrote to memory of 2700	4460	java.exe	84
PID 4460 wrote to memory of 884	4460	java.exe	87
PID 4460 wrote to memory of 884	4460	java.exe	87
PID 884 wrote to memory of 3632	884	javaw.exe	88
PID 884 wrote to memory of 3632	884	javaw.exe	88

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
2828	attrib.exe
2700	attrib.exe

C:\ProgramData\Oracle\Java\javapath\java.exe
java -jar C:\Users\Admin\AppData\Local\Temp\f2be302712cf964184b2817333fb2a30ddb27ce667af58228fbc0056fe0b360a.jar
1⤵
- Drops desktop.ini file(s)
- Drops file in Windows directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4460
- C:\Windows\SYSTEM32\reg.exe
  reg add HKLM\Software\Microsoft\Windows\CurrentVersion\Run /v DOsW1fb3MJ /t REG_SZ /d "\"C:\Program Files\Java\jre1.8.0_66\bin\javaw.exe\" -jar \"C:\Users\Admin\AppData\Roaming\BRMEuz4akD\puyx8f9QIQ.txt\"" /f
  2⤵
  - Adds Run key to start application
  - Modifies registry key
  PID:1956
- C:\Windows\SYSTEM32\attrib.exe
  attrib +s +h +r "C:\Users\Admin\AppData\Roaming\BRMEuz4akD\*.*"
  2⤵
  - Sets file to hidden
  - Drops desktop.ini file(s)
  - Views/modifies file attributes
  PID:2828
- C:\Windows\SYSTEM32\attrib.exe
  attrib +s +h +r "C:\Users\Admin\AppData\Roaming\BRMEuz4akD"
  2⤵
  - Sets file to hidden
  - Views/modifies file attributes
  PID:2700
- C:\Program Files\Java\jre1.8.0_66\bin\javaw.exe
  "C:\Program Files\Java\jre1.8.0_66\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Roaming\BRMEuz4akD\puyx8f9QIQ.txt"
  2⤵
  - Drops file in Windows directory
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:884
- - C:\Windows\SYSTEM32\reg.exe
    reg add HKLM\Software\Microsoft\Windows\CurrentVersion\Run /v DOsW1fb3MJ /t REG_SZ /d "\"C:\Program Files\Java\jre1.8.0_66\bin\javaw.exe\" -jar \"C:\Users\Admin\AppData\Roaming\BRMEuz4akD\puyx8f9QIQ.txt\"" /f
    3⤵
    - Adds Run key to start application
    - Modifies registry key
    PID:3632

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\.oracle_jre_usage\90737d32e3aba4b.timestamp

Filesize
50B

MD5
e1ab0096207f1b079c6f6bbb26151ef4

SHA1
866d4d5488da29cd5b9aaa6d68d7bd4c4ace21d9

SHA256
8e30982965e1f51897d4b16da1cfe83585f0f56e44821decd9fdfb9cbc8e0ccb

SHA512
2cfb550825057388ee91fb5a425c4fe2524cba82535ae7f50afe36e2e96352fbe5656b2bd3b367ef8293f0cf510e6c023c9fc582e3f81d60e4e70e952aa93c72

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C:\Users\Admin\AppData\Roaming\BRMEuz4akD\Desktop.ini

Filesize
63B

MD5
e783bdd20a976eaeaae1ff4624487420

SHA1
c2a44fab9df00b3e11582546b16612333c2f9286

SHA256
2f65fa9c7ed712f493782abf91467f869419a2f8b5adf23b44019c08190fa3f3

SHA512
8c883678e4625ef44f4885b8c6d7485196774f9cb0b9eee7dd18711749bcae474163df9965effcd13ecd1a33cd7265010c152f8504d6013e4f4d85d68a901a80

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C:\Users\Admin\AppData\Roaming\BRMEuz4akD\puyx8f9QIQ.txt

Filesize
49KB

MD5
c083fea491f147194d3b90d4e48cfa49

SHA1
a5af55828ff27ea611e2eca3f19301297572ef7d

SHA256
f2be302712cf964184b2817333fb2a30ddb27ce667af58228fbc0056fe0b360a

SHA512
c6209ab3684de5e15a4f9a3f2c87d659f63635916945014df6adffdb5126a5bd8c0aaaaf529e5a94aeb922a1136b85bdffbec2cae1bc72cfc4b1104b3bf70f98

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memory/884-178-0x00000000024E0000-0x00000000034E0000-memory.dmp

Filesize
16.0MB

Download
memory/884-177-0x00000000024E0000-0x00000000034E0000-memory.dmp

Filesize
16.0MB

Download
memory/884-170-0x00000000024E0000-0x00000000034E0000-memory.dmp

Filesize
16.0MB

Download
memory/884-179-0x00000000024E0000-0x00000000034E0000-memory.dmp

Filesize
16.0MB

Download
memory/884-182-0x00000000024E0000-0x00000000034E0000-memory.dmp

Filesize
16.0MB

Download
memory/884-163-0x00000000024E0000-0x00000000034E0000-memory.dmp

Filesize
16.0MB

Download
memory/884-171-0x00000000024E0000-0x00000000034E0000-memory.dmp

Filesize
16.0MB

Download
memory/884-169-0x00000000024E0000-0x00000000034E0000-memory.dmp

Filesize
16.0MB

Download
memory/4460-174-0x0000000003270000-0x0000000004270000-memory.dmp

Filesize
16.0MB

Download
memory/4460-134-0x0000000003270000-0x0000000004270000-memory.dmp

Filesize
16.0MB

Download
memory/4460-145-0x0000000003270000-0x0000000004270000-memory.dmp

Filesize
16.0MB

Download
memory/4460-137-0x0000000003270000-0x0000000004270000-memory.dmp

Filesize
16.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads