af1fc064debebeeeeec13ba1ec5318b65ba347f86e466e8643f9c6e9acc5cd30

Analysis

max time kernel
147s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
04/12/2022, 13:17

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General

Target

af1fc064debebeeeeec13ba1ec5318b65ba347f86e466e8643f9c6e9acc5cd30.exe
Size

242KB
MD5

0d83c012eda9be662d3d482944b58cbd
SHA1

6ca650711e3df047a096f4ab9b1d6c4f5b4af87b
SHA256

af1fc064debebeeeeec13ba1ec5318b65ba347f86e466e8643f9c6e9acc5cd30
SHA512

01e9311f11cd3553f222f494440a90d14cd235811c418f89a52639fadf968064b9306736812fac4f605a5e12200a072a73489988abc605d27cecda0b40188a62
SSDEEP

6144:JkeENDvTSn2SV/GuhYdViC7X57+nM4bKVSJfWpsQQ:JNEND/k/GLPX57+nbWSJfWpsN

Score

8^/10

bootkit persistence upx

Malware Config

Signatures

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2356-132-0x0000000000400000-0x000000000048A000-memory.dmp	upx
behavioral2/memory/2356-133-0x0000000000400000-0x000000000048A000-memory.dmp	upx

Enumerates connected drives 3 TTPs 22 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\f:	af1fc064debebeeeeec13ba1ec5318b65ba347f86e466e8643f9c6e9acc5cd30.exe
File opened (read-only)	\??\h:	af1fc064debebeeeeec13ba1ec5318b65ba347f86e466e8643f9c6e9acc5cd30.exe
File opened (read-only)	\??\k:	af1fc064debebeeeeec13ba1ec5318b65ba347f86e466e8643f9c6e9acc5cd30.exe
File opened (read-only)	\??\s:	af1fc064debebeeeeec13ba1ec5318b65ba347f86e466e8643f9c6e9acc5cd30.exe
File opened (read-only)	\??\z:	af1fc064debebeeeeec13ba1ec5318b65ba347f86e466e8643f9c6e9acc5cd30.exe
File opened (read-only)	\??\g:	af1fc064debebeeeeec13ba1ec5318b65ba347f86e466e8643f9c6e9acc5cd30.exe
File opened (read-only)	\??\j:	af1fc064debebeeeeec13ba1ec5318b65ba347f86e466e8643f9c6e9acc5cd30.exe
File opened (read-only)	\??\m:	af1fc064debebeeeeec13ba1ec5318b65ba347f86e466e8643f9c6e9acc5cd30.exe
File opened (read-only)	\??\p:	af1fc064debebeeeeec13ba1ec5318b65ba347f86e466e8643f9c6e9acc5cd30.exe
File opened (read-only)	\??\r:	af1fc064debebeeeeec13ba1ec5318b65ba347f86e466e8643f9c6e9acc5cd30.exe
File opened (read-only)	\??\x:	af1fc064debebeeeeec13ba1ec5318b65ba347f86e466e8643f9c6e9acc5cd30.exe
File opened (read-only)	\??\e:	af1fc064debebeeeeec13ba1ec5318b65ba347f86e466e8643f9c6e9acc5cd30.exe
File opened (read-only)	\??\q:	af1fc064debebeeeeec13ba1ec5318b65ba347f86e466e8643f9c6e9acc5cd30.exe
File opened (read-only)	\??\t:	af1fc064debebeeeeec13ba1ec5318b65ba347f86e466e8643f9c6e9acc5cd30.exe
File opened (read-only)	\??\v:	af1fc064debebeeeeec13ba1ec5318b65ba347f86e466e8643f9c6e9acc5cd30.exe
File opened (read-only)	\??\w:	af1fc064debebeeeeec13ba1ec5318b65ba347f86e466e8643f9c6e9acc5cd30.exe
File opened (read-only)	\??\y:	af1fc064debebeeeeec13ba1ec5318b65ba347f86e466e8643f9c6e9acc5cd30.exe
File opened (read-only)	\??\i:	af1fc064debebeeeeec13ba1ec5318b65ba347f86e466e8643f9c6e9acc5cd30.exe
File opened (read-only)	\??\l:	af1fc064debebeeeeec13ba1ec5318b65ba347f86e466e8643f9c6e9acc5cd30.exe
File opened (read-only)	\??\n:	af1fc064debebeeeeec13ba1ec5318b65ba347f86e466e8643f9c6e9acc5cd30.exe
File opened (read-only)	\??\o:	af1fc064debebeeeeec13ba1ec5318b65ba347f86e466e8643f9c6e9acc5cd30.exe
File opened (read-only)	\??\u:	af1fc064debebeeeeec13ba1ec5318b65ba347f86e466e8643f9c6e9acc5cd30.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1067

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	af1fc064debebeeeeec13ba1ec5318b65ba347f86e466e8643f9c6e9acc5cd30.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\SAItest.txt	af1fc064debebeeeeec13ba1ec5318b65ba347f86e466e8643f9c6e9acc5cd30.exe

C:\Users\Admin\AppData\Local\Temp\af1fc064debebeeeeec13ba1ec5318b65ba347f86e466e8643f9c6e9acc5cd30.exe
"C:\Users\Admin\AppData\Local\Temp\af1fc064debebeeeeec13ba1ec5318b65ba347f86e466e8643f9c6e9acc5cd30.exe"
1⤵
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- Drops file in Program Files directory
PID:2356

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Bootkit

T1067

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

Replay Monitor

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Downloads

memory/2356-132-0x0000000000400000-0x000000000048A000-memory.dmp

Filesize
552KB

Download
memory/2356-133-0x0000000000400000-0x000000000048A000-memory.dmp

Filesize
552KB

Download