d3a357b30ab22fc0bbe2a2700e194a0596db7762dcb6663dd40d6f7eef4e09e7

Analysis

max time kernel
38s
max time network
49s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
06/12/2022, 18:01

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General

Target

d3a357b30ab22fc0bbe2a2700e194a0596db7762dcb6663dd40d6f7eef4e09e7.exe
Size

17KB
MD5

8fcc540fca4358cf7864bc97a3acb5c6
SHA1

73402b22111f36b0d38df8bdca47bedf1b86b6c4
SHA256

d3a357b30ab22fc0bbe2a2700e194a0596db7762dcb6663dd40d6f7eef4e09e7
SHA512

27c3da299f2a55c3a9271058be143d5cf4c27fdec7eddf3904e237988788c78695531eb96507cf65f2ddb2f428d0e4cb752a58ad2f0469e94db2bde26e97cded
SSDEEP

384:4h/defK03XJYVTKOqY61MAM3Xt/7BrXN5V6A/:m1efAVTxAM3djBrXLIm

Score

8^/10

persistence upx

Malware Config

Signatures

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1528-55-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral1/memory/1528-56-0x0000000000400000-0x000000000040F000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\checkdisk = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\Programs\\Chkdisk.exe"	d3a357b30ab22fc0bbe2a2700e194a0596db7762dcb6663dd40d6f7eef4e09e7.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\70768291139.dll	d3a357b30ab22fc0bbe2a2700e194a0596db7762dcb6663dd40d6f7eef4e09e7.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\d.ini	d3a357b30ab22fc0bbe2a2700e194a0596db7762dcb6663dd40d6f7eef4e09e7.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1528	d3a357b30ab22fc0bbe2a2700e194a0596db7762dcb6663dd40d6f7eef4e09e7.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1528	d3a357b30ab22fc0bbe2a2700e194a0596db7762dcb6663dd40d6f7eef4e09e7.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 1528 wrote to memory of 1244	1528	d3a357b30ab22fc0bbe2a2700e194a0596db7762dcb6663dd40d6f7eef4e09e7.exe	16

C:\Users\Admin\AppData\Local\Temp\d3a357b30ab22fc0bbe2a2700e194a0596db7762dcb6663dd40d6f7eef4e09e7.exe
"C:\Users\Admin\AppData\Local\Temp\d3a357b30ab22fc0bbe2a2700e194a0596db7762dcb6663dd40d6f7eef4e09e7.exe"
1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1528

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1244

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

memory/1528-54-0x0000000075021000-0x0000000075023000-memory.dmp

Filesize
8KB

Download
memory/1528-55-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/1528-56-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download