4b0631b521dba9fec881f7c0378a479bf77159422bf656e141bb0e6b86332a1b

Analysis

max time kernel
158s
max time network
183s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
25-11-2022 13:33

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General

Target

4b0631b521dba9fec881f7c0378a479bf77159422bf656e141bb0e6b86332a1b.exe
Size

935KB
MD5

88f406dc7ec583f154b581bd102f9ba7
SHA1

d9e5fa89cca5dc540861b8ce3535bb80f9da764e
SHA256

4b0631b521dba9fec881f7c0378a479bf77159422bf656e141bb0e6b86332a1b
SHA512

00d17fdc0c7edda0d2eedff6d2f0d6bcf9ed9933b97449859c6b82e3128fed657c5badf1bf51122e55d5a5c00b5699f1844b449cb46d796141bb154ff00846bf
SSDEEP

12288:p5Yr15f753d5QWIDz/Wz9NCyzHinLipNDJ5eoFb0OZ/WiGaks+HL63S27x4G:pyHv5Z+Wzv7AiBll0OBWi6si9Gn

Score

8^/10

upx

Malware Config

Signatures

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4988-133-0x0000000000400000-0x00000000004F2000-memory.dmp	upx
behavioral2/memory/4988-135-0x0000000000400000-0x00000000004F2000-memory.dmp	upx
behavioral2/memory/4988-136-0x0000000000400000-0x00000000004F2000-memory.dmp	upx
behavioral2/memory/4988-137-0x0000000000400000-0x00000000004F2000-memory.dmp	upx
behavioral2/memory/4988-138-0x0000000000400000-0x00000000004F2000-memory.dmp	upx
behavioral2/memory/4988-139-0x0000000000400000-0x00000000004F2000-memory.dmp	upx

Checks BIOS information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	4b0631b521dba9fec881f7c0378a479bf77159422bf656e141bb0e6b86332a1b.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	4b0631b521dba9fec881f7c0378a479bf77159422bf656e141bb0e6b86332a1b.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	4b0631b521dba9fec881f7c0378a479bf77159422bf656e141bb0e6b86332a1b.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	4b0631b521dba9fec881f7c0378a479bf77159422bf656e141bb0e6b86332a1b.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5100 set thread context of 4988	5100	4b0631b521dba9fec881f7c0378a479bf77159422bf656e141bb0e6b86332a1b.exe	82

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4988	4b0631b521dba9fec881f7c0378a479bf77159422bf656e141bb0e6b86332a1b.exe
4988	4b0631b521dba9fec881f7c0378a479bf77159422bf656e141bb0e6b86332a1b.exe
4988	4b0631b521dba9fec881f7c0378a479bf77159422bf656e141bb0e6b86332a1b.exe
4988	4b0631b521dba9fec881f7c0378a479bf77159422bf656e141bb0e6b86332a1b.exe
4988	4b0631b521dba9fec881f7c0378a479bf77159422bf656e141bb0e6b86332a1b.exe
4988	4b0631b521dba9fec881f7c0378a479bf77159422bf656e141bb0e6b86332a1b.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 5100 wrote to memory of 4988	5100	4b0631b521dba9fec881f7c0378a479bf77159422bf656e141bb0e6b86332a1b.exe	82
PID 5100 wrote to memory of 4988	5100	4b0631b521dba9fec881f7c0378a479bf77159422bf656e141bb0e6b86332a1b.exe	82
PID 5100 wrote to memory of 4988	5100	4b0631b521dba9fec881f7c0378a479bf77159422bf656e141bb0e6b86332a1b.exe	82
PID 5100 wrote to memory of 4988	5100	4b0631b521dba9fec881f7c0378a479bf77159422bf656e141bb0e6b86332a1b.exe	82
PID 5100 wrote to memory of 4988	5100	4b0631b521dba9fec881f7c0378a479bf77159422bf656e141bb0e6b86332a1b.exe	82
PID 5100 wrote to memory of 4988	5100	4b0631b521dba9fec881f7c0378a479bf77159422bf656e141bb0e6b86332a1b.exe	82
PID 5100 wrote to memory of 4988	5100	4b0631b521dba9fec881f7c0378a479bf77159422bf656e141bb0e6b86332a1b.exe	82
PID 5100 wrote to memory of 4988	5100	4b0631b521dba9fec881f7c0378a479bf77159422bf656e141bb0e6b86332a1b.exe	82

C:\Users\Admin\AppData\Local\Temp\4b0631b521dba9fec881f7c0378a479bf77159422bf656e141bb0e6b86332a1b.exe
"C:\Users\Admin\AppData\Local\Temp\4b0631b521dba9fec881f7c0378a479bf77159422bf656e141bb0e6b86332a1b.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5100
- C:\Users\Admin\AppData\Local\Temp\4b0631b521dba9fec881f7c0378a479bf77159422bf656e141bb0e6b86332a1b.exe
  "C:\Users\Admin\AppData\Local\Temp\4b0631b521dba9fec881f7c0378a479bf77159422bf656e141bb0e6b86332a1b.exe" Track="0001001000"
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:4988

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4988-133-0x0000000000400000-0x00000000004F2000-memory.dmp

Filesize
968KB

Download
memory/4988-135-0x0000000000400000-0x00000000004F2000-memory.dmp

Filesize
968KB

Download
memory/4988-136-0x0000000000400000-0x00000000004F2000-memory.dmp

Filesize
968KB

Download
memory/4988-137-0x0000000000400000-0x00000000004F2000-memory.dmp

Filesize
968KB

Download
memory/4988-138-0x0000000000400000-0x00000000004F2000-memory.dmp

Filesize
968KB

Download
memory/4988-139-0x0000000000400000-0x00000000004F2000-memory.dmp

Filesize
968KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads