77e6fa761983370d075f8cbdaa22280449e732490b7b6841d116edf6037aeec6

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
13/01/2024, 23:06

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General

Target

59a524c2928595e3e7c8e45ba5f8877d.exe
Size

304KB
MD5

59a524c2928595e3e7c8e45ba5f8877d
SHA1

f6750abb1d9b68d8244f9a6bad6754f0cf55a029
SHA256

77e6fa761983370d075f8cbdaa22280449e732490b7b6841d116edf6037aeec6
SHA512

0efbfc7ef1c873c3b733a5defd9ca5e9695cf2d5ef8cfae7270704268a36c4d781c9f5d37c4ea3c27dbe80525ab915bf8344390e3b84a23cfec71fb997aebb16
SSDEEP

6144:C/0uoLcNe1F6DizTa9uZMlIKGs7LTqy3etzsvDH/xe:CJix1k2q9uZMcsmyxDHZe

Score

7^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
4672	10054_~1.EXE
1280	ePSXe.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0010000000023124-19.dat	upx
behavioral2/memory/1280-20-0x0000000000400000-0x00000000008E4000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	59a524c2928595e3e7c8e45ba5f8877d.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	svchost.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\Deployment\Package\*\S-1-5-21-1497073144-2389943819-3385106915-1000\{A5E1D70E-3CA0-44A4-9ED8-BFA2BE1E0C46}	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4680	OpenWith.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3212 wrote to memory of 4672	3212	59a524c2928595e3e7c8e45ba5f8877d.exe	89
PID 3212 wrote to memory of 4672	3212	59a524c2928595e3e7c8e45ba5f8877d.exe	89
PID 3212 wrote to memory of 4672	3212	59a524c2928595e3e7c8e45ba5f8877d.exe	89
PID 3212 wrote to memory of 1280	3212	59a524c2928595e3e7c8e45ba5f8877d.exe	92
PID 3212 wrote to memory of 1280	3212	59a524c2928595e3e7c8e45ba5f8877d.exe	92
PID 3212 wrote to memory of 1280	3212	59a524c2928595e3e7c8e45ba5f8877d.exe	92

C:\Users\Admin\AppData\Local\Temp\59a524c2928595e3e7c8e45ba5f8877d.exe
"C:\Users\Admin\AppData\Local\Temp\59a524c2928595e3e7c8e45ba5f8877d.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3212
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\10054_~1.EXE
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\10054_~1.EXE
  2⤵
  - Executes dropped EXE
  PID:4672
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ePSXe.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ePSXe.exe
  2⤵
  - Executes dropped EXE
  PID:1280

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Suspicious use of SetWindowsHookEx
PID:4680

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k BcastDVRUserService -s BcastDVRUserService
1⤵
- Checks processor information in registry
- Modifies registry class
PID:4544

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\10054_~1.EXE

Filesize
89KB

MD5
25fc448ee4f93e6f98458fd631e30c6e

SHA1
4512de71991eda40509dae5afcc6a80fea9ab631

SHA256
b88e4865cc23836275ce6efc2c9f1b2c42ea0c8f34ad90913cdca7f4b48a678f

SHA512
654f880fa4f21d22cae423299886ac1cb0d8b380e60dfe1b28a787a838919448411c4a713296aeca11e17e5cc114518ec448f7a3047f6f8f17b8740a5292d9b8

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ePSXe.exe

Filesize
158KB

MD5
861fe2f10e899afadd5a806a80611c2b

SHA1
5b374e343858e2061eb909036f13578ee321ef9c

SHA256
f2f635dfb6c97aa02a653c435726c908860163e48a834ff6606f5450686ffe18

SHA512
2065512ee9c3b2644a55647b22bff6b3bcb8cdd0dc9d84ad052f57d39495fc61fc64c023901b09f1ab0222b91291730fc7f0cf25bfcaca1a759865ea9e2265b5

Download Submit
memory/1280-20-0x0000000000400000-0x00000000008E4000-memory.dmp

Filesize
4.9MB

Download
memory/4672-7-0x00000000006D0000-0x00000000006E8000-memory.dmp

Filesize
96KB

Download
memory/4672-8-0x00000000029F0000-0x0000000002A08000-memory.dmp

Filesize
96KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads