568494035ca6efc71af26b35fda4aa2eeee4a6676e281bb0920a44729bf2247e

Analysis

max time kernel
147s
max time network
133s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
01-12-2022 05:05

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General

Target

568494035ca6efc71af26b35fda4aa2eeee4a6676e281bb0920a44729bf2247e.exe
Size

580KB
MD5

19845e4ebbddc0d859fa30fd9254aa4c
SHA1

06c871f485a3424c37f02db9d9e6576740ab44a6
SHA256

568494035ca6efc71af26b35fda4aa2eeee4a6676e281bb0920a44729bf2247e
SHA512

dd4854791ee6462ce7c5083c61ed320e341bb225e72fe616f234ba8c481b8369f58865eba014f1ccb5901b4112e31fca867f3c06fd379087deea33f41da9f05e
SSDEEP

12288:fHyW4yiEHQ1AXkl76VlgIV9NZiGa46cKQdOhCctfM7rBo4Tr:a/MH6AXk58lgw4COh/Wrp

Score

8^/10

discovery evasion persistence trojan upx

Malware Config

Signatures

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	568494035ca6efc71af26b35fda4aa2eeee4a6676e281bb0920a44729bf2247e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Ltzto = "C:\\Windows\\SysWOW64\\imkr802.exe"	568494035ca6efc71af26b35fda4aa2eeee4a6676e281bb0920a44729bf2247e.exe

Executes dropped EXE 1 IoCs

pid	Process
1680	imkr802.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1880-55-0x0000000000310000-0x00000000003B2000-memory.dmp	upx
behavioral1/memory/1880-59-0x0000000000310000-0x00000000003B2000-memory.dmp	upx
behavioral1/memory/1880-58-0x0000000000310000-0x00000000003B2000-memory.dmp	upx

Checks BIOS information in registry 2 TTPs 1 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	568494035ca6efc71af26b35fda4aa2eeee4a6676e281bb0920a44729bf2247e.exe

Deletes itself 1 IoCs

pid	Process
1956	cmd.exe

Loads dropped DLL 1 IoCs

pid	Process
1880	568494035ca6efc71af26b35fda4aa2eeee4a6676e281bb0920a44729bf2247e.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	568494035ca6efc71af26b35fda4aa2eeee4a6676e281bb0920a44729bf2247e.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\imkr802.exe	568494035ca6efc71af26b35fda4aa2eeee4a6676e281bb0920a44729bf2247e.exe
File opened for modification	C:\Windows\SysWOW64\imkr802.exe	568494035ca6efc71af26b35fda4aa2eeee4a6676e281bb0920a44729bf2247e.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1880	568494035ca6efc71af26b35fda4aa2eeee4a6676e281bb0920a44729bf2247e.exe
1880	568494035ca6efc71af26b35fda4aa2eeee4a6676e281bb0920a44729bf2247e.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe
1680	imkr802.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1880	568494035ca6efc71af26b35fda4aa2eeee4a6676e281bb0920a44729bf2247e.exe
Token: SeDebugPrivilege	1680	imkr802.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1880 wrote to memory of 1680	1880	568494035ca6efc71af26b35fda4aa2eeee4a6676e281bb0920a44729bf2247e.exe	27
PID 1880 wrote to memory of 1680	1880	568494035ca6efc71af26b35fda4aa2eeee4a6676e281bb0920a44729bf2247e.exe	27
PID 1880 wrote to memory of 1680	1880	568494035ca6efc71af26b35fda4aa2eeee4a6676e281bb0920a44729bf2247e.exe	27
PID 1880 wrote to memory of 1680	1880	568494035ca6efc71af26b35fda4aa2eeee4a6676e281bb0920a44729bf2247e.exe	27
PID 1880 wrote to memory of 1956	1880	568494035ca6efc71af26b35fda4aa2eeee4a6676e281bb0920a44729bf2247e.exe	29
PID 1880 wrote to memory of 1956	1880	568494035ca6efc71af26b35fda4aa2eeee4a6676e281bb0920a44729bf2247e.exe	29
PID 1880 wrote to memory of 1956	1880	568494035ca6efc71af26b35fda4aa2eeee4a6676e281bb0920a44729bf2247e.exe	29
PID 1880 wrote to memory of 1956	1880	568494035ca6efc71af26b35fda4aa2eeee4a6676e281bb0920a44729bf2247e.exe	29

C:\Users\Admin\AppData\Local\Temp\568494035ca6efc71af26b35fda4aa2eeee4a6676e281bb0920a44729bf2247e.exe
"C:\Users\Admin\AppData\Local\Temp\568494035ca6efc71af26b35fda4aa2eeee4a6676e281bb0920a44729bf2247e.exe"
1⤵
- Adds policy Run key to start application
- Checks BIOS information in registry
- Loads dropped DLL
- Checks whether UAC is enabled
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1880
- C:\Windows\SysWOW64\imkr802.exe
  C:\Windows\SysWOW64\imkr802.exe
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1680
- C:\Windows\SysWOW64\cmd.exe
  /c C:\Users\Admin\AppData\Local\Temp\~unins8637.bat "C:\Users\Admin\AppData\Local\Temp\568494035ca6efc71af26b35fda4aa2eeee4a6676e281bb0920a44729bf2247e.exe"
  2⤵
  - Deletes itself
  PID:1956

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

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\~unins8637.bat

Filesize
49B

MD5
9e0a2f5ab30517809b95a1ff1dd98c53

SHA1
5c1eefdf10e67d1e9216e2e3f5e92352d583c9ce

SHA256
97ac9fee75a1f7b63b3115e9c4fb9dda80b1caba26d2fb51325670dee261fe32

SHA512
e959cc1fd48fb1cccf135a697924c775a3812bab211fc7f9b00c5a9d617261d84c5d6f7cb548774c1e8f46811b06ca39c5603d0e10cbcb7b805f9abbe49b9b42

Download Submit
C:\Windows\SysWOW64\imkr802.exe

Filesize
138KB

MD5
06a04ca0dd8e6832f024e548e4a278a7

SHA1
a7a4b6964853b15228947a3369beab2d3245f3f7

SHA256
6287ba4b8f26714520e03304e957c676e442c884f4e481ab82756b2d58c78edf

SHA512
7ddb6a2d348a87a24adae0c806f258aa99a809cbf6d39ade8ca52056c1ec612a659825ba2ebb603a3e84c799dec95a0198eadc5eb7d3e916d1698b45a58717a5

Download Submit
C:\Windows\SysWOW64\imkr802.exe

Filesize
138KB

MD5
06a04ca0dd8e6832f024e548e4a278a7

SHA1
a7a4b6964853b15228947a3369beab2d3245f3f7

SHA256
6287ba4b8f26714520e03304e957c676e442c884f4e481ab82756b2d58c78edf

SHA512
7ddb6a2d348a87a24adae0c806f258aa99a809cbf6d39ade8ca52056c1ec612a659825ba2ebb603a3e84c799dec95a0198eadc5eb7d3e916d1698b45a58717a5

Download Submit
\Windows\SysWOW64\imkr802.exe

Filesize
138KB

MD5
06a04ca0dd8e6832f024e548e4a278a7

SHA1
a7a4b6964853b15228947a3369beab2d3245f3f7

SHA256
6287ba4b8f26714520e03304e957c676e442c884f4e481ab82756b2d58c78edf

SHA512
7ddb6a2d348a87a24adae0c806f258aa99a809cbf6d39ade8ca52056c1ec612a659825ba2ebb603a3e84c799dec95a0198eadc5eb7d3e916d1698b45a58717a5

Download Submit
memory/1680-70-0x0000000072F50000-0x00000000734FB000-memory.dmp

Filesize
5.7MB

Download
memory/1680-72-0x0000000072F50000-0x00000000734FB000-memory.dmp

Filesize
5.7MB

Download
memory/1880-60-0x0000000000250000-0x000000000028D000-memory.dmp

Filesize
244KB

Download
memory/1880-62-0x0000000000311000-0x0000000000376000-memory.dmp

Filesize
404KB

Download
memory/1880-61-0x0000000000376000-0x00000000003B1000-memory.dmp

Filesize
236KB

Download
memory/1880-54-0x0000000075D71000-0x0000000075D73000-memory.dmp

Filesize
8KB

Download
memory/1880-58-0x0000000000310000-0x00000000003B2000-memory.dmp

Filesize
648KB

Download
memory/1880-59-0x0000000000310000-0x00000000003B2000-memory.dmp

Filesize
648KB

Download
memory/1880-55-0x0000000000310000-0x00000000003B2000-memory.dmp

Filesize
648KB

Download
memory/1880-71-0x0000000000311000-0x0000000000376000-memory.dmp

Filesize
404KB

Download
memory/1880-73-0x0000000000311000-0x0000000000376000-memory.dmp

Filesize
404KB

Download