c64b8ecfe0e80e82838b7e96eee0f1d31ca20721ce9b876d057797d61cc2e0b9

Analysis

max time kernel
141s
max time network
147s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
01/02/2024, 23:51

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General

Target

87fdff96fd8427b136a4af5d835ba4f9.exe
Size

283KB
MD5

87fdff96fd8427b136a4af5d835ba4f9
SHA1

b34623967173a389cff9f9329c4809a02e018fd0
SHA256

c64b8ecfe0e80e82838b7e96eee0f1d31ca20721ce9b876d057797d61cc2e0b9
SHA512

ec37bd26110aeda02702140281825840ac9ffc8442c95db864b6d1b00fd344cba05fecf9e4f41c3e0889a7d81d5a84aaa48a028f460c94643e16ff8834bda0b9
SSDEEP

6144:HRjOXY6C/OWQG5reE6LTTfJd3K3hqcS4h5heU:xjiJbxfLJd3K3hqcSW

Score

7^/10

persistence upx

Malware Config

Signatures

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3004-0-0x0000000000400000-0x00000000004AD000-memory.dmp	upx
behavioral1/memory/3004-2-0x0000000000400000-0x00000000004AD000-memory.dmp	upx
behavioral1/memory/3004-3-0x0000000000400000-0x00000000004AD000-memory.dmp	upx
behavioral1/memory/3004-11-0x0000000000400000-0x00000000004AD000-memory.dmp	upx
behavioral1/memory/3004-16-0x0000000000400000-0x00000000004AD000-memory.dmp	upx
behavioral1/memory/3004-17-0x0000000000400000-0x00000000004AD000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\SMS = "C:\\Users\\Admin\\AppData\\Local\\Temp\\87fdff96fd8427b136a4af5d835ba4f9.exe /cs:1 "	87fdff96fd8427b136a4af5d835ba4f9.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\SMS = "\"C:\\ProgramData\\2f4614\\SM2f4_2050.exe\" /s"	87fdff96fd8427b136a4af5d835ba4f9.exe

Checks for any installed AV software in registry 1 TTPs 1 IoCs

Security Software Discovery

T1518.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Eset\Nod\	87fdff96fd8427b136a4af5d835ba4f9.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Kills process with taskkill 1 IoCs

evasion

pid	Process
1404	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1404	taskkill.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3004 wrote to memory of 1404	3004	87fdff96fd8427b136a4af5d835ba4f9.exe	28
PID 3004 wrote to memory of 1404	3004	87fdff96fd8427b136a4af5d835ba4f9.exe	28
PID 3004 wrote to memory of 1404	3004	87fdff96fd8427b136a4af5d835ba4f9.exe	28
PID 3004 wrote to memory of 1404	3004	87fdff96fd8427b136a4af5d835ba4f9.exe	28

C:\Users\Admin\AppData\Local\Temp\87fdff96fd8427b136a4af5d835ba4f9.exe
"C:\Users\Admin\AppData\Local\Temp\87fdff96fd8427b136a4af5d835ba4f9.exe"
1⤵
- Adds Run key to start application
- Checks for any installed AV software in registry
- Suspicious use of WriteProcessMemory
PID:3004
- C:\Windows\SysWOW64\taskkill.exe
  "C:\Windows\System32\taskkill.exe" /F /IM MSASCui* /IM avg* /IM ash* /IM McSA* /IM msse*
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:1404

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Software Discovery

T1518

Security Software Discovery

T1518.001

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3004-0-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/3004-1-0x0000000000230000-0x000000000023E000-memory.dmp

Filesize
56KB

Download
memory/3004-2-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/3004-3-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/3004-11-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/3004-16-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/3004-17-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads