789de9032e977804c546f0b65041b00ae2e1842e97570747397e0165a8448506

Analysis

max time kernel
151s
max time network
126s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
20/10/2022, 09:33

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General

Target

789de9032e977804c546f0b65041b00ae2e1842e97570747397e0165a8448506.exe
Size

134KB
MD5

441ed591e99f522a1c5c83d3d16158f0
SHA1

d2c03745ed364c355b4e3d66b9453a18c67543d9
SHA256

789de9032e977804c546f0b65041b00ae2e1842e97570747397e0165a8448506
SHA512

87a919811d1be58f66dba4bfc23f137924b59b166ffe92026758f7c21d5350efbbf1180df7aa2457952fdb3f66211d7dae166831c911e9c4879f9103329723ff
SSDEEP

3072:S9ZufRZHR4++Tz3saVFJjO6cbsCuCsywO/FzdXr:S9ZurG/zjO6HWo+X

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1640	Prosua.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-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\W1WIWQ1NPG = "C:\\Windows\\Prosua.exe"	Prosua.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run	Prosua.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\{810401E2-DDE0-454e-B0E2-AA89C9E5967C}.job	789de9032e977804c546f0b65041b00ae2e1842e97570747397e0165a8448506.exe
File opened for modification	C:\Windows\Tasks\{810401E2-DDE0-454e-B0E2-AA89C9E5967C}.job	789de9032e977804c546f0b65041b00ae2e1842e97570747397e0165a8448506.exe
File created	C:\Windows\Prosua.exe	789de9032e977804c546f0b65041b00ae2e1842e97570747397e0165a8448506.exe
File opened for modification	C:\Windows\Prosua.exe	789de9032e977804c546f0b65041b00ae2e1842e97570747397e0165a8448506.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main	Prosua.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\International	Prosua.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe
1640	Prosua.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1064 wrote to memory of 1640	1064	789de9032e977804c546f0b65041b00ae2e1842e97570747397e0165a8448506.exe	27
PID 1064 wrote to memory of 1640	1064	789de9032e977804c546f0b65041b00ae2e1842e97570747397e0165a8448506.exe	27
PID 1064 wrote to memory of 1640	1064	789de9032e977804c546f0b65041b00ae2e1842e97570747397e0165a8448506.exe	27
PID 1064 wrote to memory of 1640	1064	789de9032e977804c546f0b65041b00ae2e1842e97570747397e0165a8448506.exe	27
PID 1064 wrote to memory of 1640	1064	789de9032e977804c546f0b65041b00ae2e1842e97570747397e0165a8448506.exe	27
PID 1064 wrote to memory of 1640	1064	789de9032e977804c546f0b65041b00ae2e1842e97570747397e0165a8448506.exe	27
PID 1064 wrote to memory of 1640	1064	789de9032e977804c546f0b65041b00ae2e1842e97570747397e0165a8448506.exe	27

C:\Users\Admin\AppData\Local\Temp\789de9032e977804c546f0b65041b00ae2e1842e97570747397e0165a8448506.exe
"C:\Users\Admin\AppData\Local\Temp\789de9032e977804c546f0b65041b00ae2e1842e97570747397e0165a8448506.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1064
- C:\Windows\Prosua.exe
  C:\Windows\Prosua.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  PID:1640

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\Prosua.exe

Filesize
134KB

MD5
441ed591e99f522a1c5c83d3d16158f0

SHA1
d2c03745ed364c355b4e3d66b9453a18c67543d9

SHA256
789de9032e977804c546f0b65041b00ae2e1842e97570747397e0165a8448506

SHA512
87a919811d1be58f66dba4bfc23f137924b59b166ffe92026758f7c21d5350efbbf1180df7aa2457952fdb3f66211d7dae166831c911e9c4879f9103329723ff

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

Filesize
408B

MD5
6a35d9c4b28570d692b739b23f5255f5

SHA1
4b21e085d8b8bf44385731af39266a13c6fd8e20

SHA256
bbd89ef91b53ec90bc4268c014a5ba4d94bd3e76a2bedcaaf219a5c8132ef3b3

SHA512
f63b209eee61a63d562f38b6e1a1180928789132ba34a6d15b32e9dd0db193325a54347e7e67d2b606c364eeb3c929c911954925edecd29b4823d0d18cac5cfb

Download Submit
memory/1064-54-0x0000000075BB1000-0x0000000075BB3000-memory.dmp

Filesize
8KB

Download
memory/1064-55-0x0000000000280000-0x00000000002AA000-memory.dmp

Filesize
168KB

Download
memory/1064-56-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1064-62-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1064-63-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1640-61-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1640-64-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download