99a320888c782623542895a961faa43f5f4070849cfe84f7e885bd6b61e7ed07

Analysis

max time kernel
150s
max time network
136s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
05/12/2022, 11:31

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General

Target

99a320888c782623542895a961faa43f5f4070849cfe84f7e885bd6b61e7ed07.exe
Size

253KB
MD5

7eb77d2ef32d7e5bb52882931a7fe460
SHA1

334a7620bebbf7d7b9f7febb1077ff26b9c33783
SHA256

99a320888c782623542895a961faa43f5f4070849cfe84f7e885bd6b61e7ed07
SHA512

75b577d8e9a88303c614208727da548acef10c3a02e1693f388321eca335276a4f383e60f718d243e2cdbc4652d499559f27b6b7b540392007706f5656a4aef1
SSDEEP

3072:AW7RbmjSAr0JAK7W+6mbEQSQ9j0qOqnSXQd+QcWUNoZ75RWetn:Aga+Ar0J3RSQ9j0OnSXQd+tWUNi9Rt

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1224	Bmisya.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\KYQ8ZBOAXR = "C:\\Windows\\Bmisya.exe"	Bmisya.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run	Bmisya.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\{810401E2-DDE0-454e-B0E2-AA89C9E5967C}.job	99a320888c782623542895a961faa43f5f4070849cfe84f7e885bd6b61e7ed07.exe
File opened for modification	C:\Windows\Tasks\{810401E2-DDE0-454e-B0E2-AA89C9E5967C}.job	99a320888c782623542895a961faa43f5f4070849cfe84f7e885bd6b61e7ed07.exe
File created	C:\Windows\Bmisya.exe	99a320888c782623542895a961faa43f5f4070849cfe84f7e885bd6b61e7ed07.exe
File opened for modification	C:\Windows\Bmisya.exe	99a320888c782623542895a961faa43f5f4070849cfe84f7e885bd6b61e7ed07.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main	Bmisya.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\International	Bmisya.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe
1224	Bmisya.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeRestorePrivilege	1672	99a320888c782623542895a961faa43f5f4070849cfe84f7e885bd6b61e7ed07.exe
Token: SeBackupPrivilege	1672	99a320888c782623542895a961faa43f5f4070849cfe84f7e885bd6b61e7ed07.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1672 wrote to memory of 1224	1672	99a320888c782623542895a961faa43f5f4070849cfe84f7e885bd6b61e7ed07.exe	27
PID 1672 wrote to memory of 1224	1672	99a320888c782623542895a961faa43f5f4070849cfe84f7e885bd6b61e7ed07.exe	27
PID 1672 wrote to memory of 1224	1672	99a320888c782623542895a961faa43f5f4070849cfe84f7e885bd6b61e7ed07.exe	27
PID 1672 wrote to memory of 1224	1672	99a320888c782623542895a961faa43f5f4070849cfe84f7e885bd6b61e7ed07.exe	27
PID 1672 wrote to memory of 1224	1672	99a320888c782623542895a961faa43f5f4070849cfe84f7e885bd6b61e7ed07.exe	27
PID 1672 wrote to memory of 1224	1672	99a320888c782623542895a961faa43f5f4070849cfe84f7e885bd6b61e7ed07.exe	27
PID 1672 wrote to memory of 1224	1672	99a320888c782623542895a961faa43f5f4070849cfe84f7e885bd6b61e7ed07.exe	27

C:\Users\Admin\AppData\Local\Temp\99a320888c782623542895a961faa43f5f4070849cfe84f7e885bd6b61e7ed07.exe
"C:\Users\Admin\AppData\Local\Temp\99a320888c782623542895a961faa43f5f4070849cfe84f7e885bd6b61e7ed07.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1672
- C:\Windows\Bmisya.exe
  C:\Windows\Bmisya.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  PID:1224

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:\Windows\Bmisya.exe

Filesize
253KB

MD5
7eb77d2ef32d7e5bb52882931a7fe460

SHA1
334a7620bebbf7d7b9f7febb1077ff26b9c33783

SHA256
99a320888c782623542895a961faa43f5f4070849cfe84f7e885bd6b61e7ed07

SHA512
75b577d8e9a88303c614208727da548acef10c3a02e1693f388321eca335276a4f383e60f718d243e2cdbc4652d499559f27b6b7b540392007706f5656a4aef1

Download Submit
C:\Windows\Tasks\{810401E2-DDE0-454e-B0E2-AA89C9E5967C}.job

Filesize
408B

MD5
7f4b56a1d596b25e1af1d86719d4660d

SHA1
991c1773afc64712d2330aeef28d589a888cd476

SHA256
3868555f9038ce5f444d24b8a1dbd733eabcf66f9ce541457b73af2eedeb576e

SHA512
e69cfdf82e7f61fa7d77d6cdcaf8efc8e8bc0a379197a80c140fc3615ce107f8510fc9fcc92125d56849ab76e0231bc854216b19a773d7f1f8c7e1a7832b5706

Download Submit
memory/1224-61-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/1224-64-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/1672-54-0x0000000075201000-0x0000000075203000-memory.dmp

Filesize
8KB

Download
memory/1672-55-0x0000000000290000-0x00000000002B6000-memory.dmp

Filesize
152KB

Download
memory/1672-56-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/1672-62-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/1672-63-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download