435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638

General

Target

435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638.exe
Size

85KB
MD5

addd1ff92d46f7640ce7fd613b6108af
SHA1

f10a22bfc833a4883a6ff15f715e4b10f15bcc83
SHA256

435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638
SHA512

1b5a19368787c12e72b5e614d4c24393b58dafc5e857123487450dca6728c004c06b7a7a675c6d2b575182f49933ee3dc6957bc6bbc208acfdf7543984820530
SSDEEP

768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWOgn:RshfSWHHNvoLqNwDDGw02eQmh0HjWOgn

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2176	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2456	435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638.exe
2456	435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638.exe

Modifies system executable filetype association 2 TTPs 5 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\¢«.exe	435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638.exe
File created	C:\Windows\SysWOW64\¢«.exe	435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638.exe
File created	C:\Windows\system\rundll32.exe	435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1724252862"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1724252862"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2456	435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638.exe
2456	435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638.exe
2456	435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638.exe
2456	435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638.exe
2456	435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638.exe
2456	435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638.exe
2456	435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638.exe
2456	435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638.exe
2456	435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638.exe
2456	435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638.exe
2456	435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638.exe
2456	435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638.exe
2456	435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638.exe
2456	435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2176	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2456	435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638.exe
2176	rundll32.exe
2176	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2456 wrote to memory of 2176	2456	435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638.exe	30
PID 2456 wrote to memory of 2176	2456	435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638.exe	30
PID 2456 wrote to memory of 2176	2456	435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638.exe	30
PID 2456 wrote to memory of 2176	2456	435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638.exe	30
PID 2456 wrote to memory of 2176	2456	435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638.exe	30
PID 2456 wrote to memory of 2176	2456	435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638.exe	30
PID 2456 wrote to memory of 2176	2456	435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638.exe	30

C:\Users\Admin\AppData\Local\Temp\435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638.exe
"C:\Users\Admin\AppData\Local\Temp\435eb0092e738e0ddd1c710d4344f8663c1d253928bea54f4371908613061638.exe"
1⤵
- Loads dropped DLL
- Modifies system executable filetype association
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2456
- C:\Windows\system\rundll32.exe
  C:\Windows\system\rundll32.exe
  2⤵
  - Executes dropped EXE
  - Modifies system executable filetype association
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  PID:2176

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

1

T1546

Change Default File Association

1

T1546.001

Privilege Escalation

Event Triggered Execution

1

T1546

Change Default File Association

1

T1546.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

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:\Windows\SysWOW64\notepad¢¬.exe

Filesize
85KB

MD5
d7f783cc95987c30f683bd0bce05b7ab

SHA1
4641c7ea26c470253cbb56a7a6ac080802f431db

SHA256
9a2187e6276442c3777c0f534dc85a95ced001764c0416c9959118d8ea4e6d3b

SHA512
c58aa696e0553e735f330f95eb5c01cbcd9379225eb65125db8175034649b96433e47cd08a2c2ec7a694990eafa761bb21f7d55a4727aa433699d395e58784ff

Download Submit
\Windows\system\rundll32.exe

Filesize
75KB

MD5
b3461eedd6312b035e6bfc76035db72a

SHA1
2eb62e754058d4c7e29505f51fca0c25642819a0

SHA256
be9c72ea0b73a7d7c603caf7681bf0dbda52ff0dc53bc3f16e1bd32521e28069

SHA512
7ce9a21911924c1655ba0a8dc1b376a6c2328b74680c9fba885d47166abd827677ff3d77bff3b6ef576daed3e7bfe3b16bb897fb018ab4d98f352c51f2c09b49

Download Submit
memory/2176-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2456-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2456-12-0x0000000000260000-0x0000000000276000-memory.dmp

Filesize
88KB

Download
memory/2456-19-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads