60b0ef6574d0a7a30ee5b4fbbf7c1709994e9f3ae276359b8a335930df9dd29c

Analysis

max time kernel
150s
max time network
136s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
submitted
01-12-2023 16:00

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General

Target

NEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.exe
Size

308KB
MD5

6f331f4edfa3feb15f68bb9f9fb15ff9
SHA1

31c86ab64f80518fff5b3a9d824c5e2220b2c466
SHA256

60b0ef6574d0a7a30ee5b4fbbf7c1709994e9f3ae276359b8a335930df9dd29c
SHA512

08e19565b38b034c0912d61264725e7fec2c4c25c0536c6a5408a8a23f27b5ae6f9a24fe091197e72da6d36797c006010d9977cb4a25ddf87bc17db5f53deaf9
SSDEEP

3072:/c3sBG7mXh7m/zZM3jAbNOM6CNtDCZFL:E3sBz0Z4Mj72F

Score

7^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

csrsll.exe

pid process

2996 csrsll.exe

pid	process
2996	csrsll.exe

Loads dropped DLL 5 IoCs

Processes:

NEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.exe

pid	process
2180	NEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.exe
2180	NEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.exe
2180	NEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.exe
2180	NEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.exe
2180	NEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.exe

UPX packed file 8 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/2180-147670-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2180-147673-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2180-147676-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2180-147674-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2180-147672-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2180-147666-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2180-147664-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2180-167678-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2952504676-3105837840-1406404655-1000\Software\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe"	reg.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

NEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.exe

description	pid	process	target process
PID 2660 set thread context of 2180	2660	NEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.exe	NEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.exe

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

System Information Discovery
T1082
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

NEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.exeNEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.execsrsll.exe

pid process

2660 NEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.exe
2180 NEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.exe
2996 csrsll.exe

pid	process
2660	NEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.exe
2180	NEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.exe
2996	csrsll.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

NEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.exeNEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.execmd.exe

description	pid	process	target process
PID 2660 wrote to memory of 2180	2660	NEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.exe	NEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.exe
PID 2660 wrote to memory of 2180	2660	NEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.exe	NEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.exe
PID 2660 wrote to memory of 2180	2660	NEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.exe	NEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.exe
PID 2660 wrote to memory of 2180	2660	NEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.exe	NEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.exe
PID 2660 wrote to memory of 2180	2660	NEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.exe	NEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.exe
PID 2660 wrote to memory of 2180	2660	NEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.exe	NEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.exe
PID 2660 wrote to memory of 2180	2660	NEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.exe	NEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.exe
PID 2660 wrote to memory of 2180	2660	NEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.exe	NEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.exe
PID 2180 wrote to memory of 2064	2180	NEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.exe	cmd.exe
PID 2180 wrote to memory of 2064	2180	NEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.exe	cmd.exe
PID 2180 wrote to memory of 2064	2180	NEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.exe	cmd.exe
PID 2180 wrote to memory of 2064	2180	NEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.exe	cmd.exe
PID 2064 wrote to memory of 2684	2064	cmd.exe	reg.exe
PID 2064 wrote to memory of 2684	2064	cmd.exe	reg.exe
PID 2064 wrote to memory of 2684	2064	cmd.exe	reg.exe
PID 2064 wrote to memory of 2684	2064	cmd.exe	reg.exe
PID 2180 wrote to memory of 2996	2180	NEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.exe	csrsll.exe
PID 2180 wrote to memory of 2996	2180	NEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.exe	csrsll.exe
PID 2180 wrote to memory of 2996	2180	NEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.exe	csrsll.exe
PID 2180 wrote to memory of 2996	2180	NEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.exe	csrsll.exe

C:\Users\Admin\AppData\Local\Temp\NEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2660

C:\Users\Admin\AppData\Local\Temp\NEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.6f331f4edfa3feb15f68bb9f9fb15ff9.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2180

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\BMRNB.bat" "
3⤵
- Suspicious use of WriteProcessMemory
PID:2064

C:\Windows\SysWOW64\reg.exe
REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Win Pdf" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe" /f
4⤵
- Adds Run key to start application
PID:2684

C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:2996

MITRE ATT&CK Matrix ATT&CK v13

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

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\BMRNB.bat
Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

Download Submit
C:\Users\Admin\AppData\Local\Temp\BMRNB.bat
Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
Filesize
308KB

MD5
14f23db01896a2f221a5c5c4cfb55d9b

SHA1
ccb92caa84eff70d652f9093a2eb17acac56027f

SHA256
6468f1fdeb2726184662117df118f8f8c7867877685bd90d7f601e66e1a5fa4a

SHA512
6c178868f475846d57e9069485a03d3648402abfb63a2c676808414c76ba526a666fb1e638896be7dd69de0010012783c21bc6ab5d277216b68b488e96853ffb

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
Filesize
308KB

MD5
14f23db01896a2f221a5c5c4cfb55d9b

SHA1
ccb92caa84eff70d652f9093a2eb17acac56027f

SHA256
6468f1fdeb2726184662117df118f8f8c7867877685bd90d7f601e66e1a5fa4a

SHA512
6c178868f475846d57e9069485a03d3648402abfb63a2c676808414c76ba526a666fb1e638896be7dd69de0010012783c21bc6ab5d277216b68b488e96853ffb

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
Filesize
308KB

MD5
14f23db01896a2f221a5c5c4cfb55d9b

SHA1
ccb92caa84eff70d652f9093a2eb17acac56027f

SHA256
6468f1fdeb2726184662117df118f8f8c7867877685bd90d7f601e66e1a5fa4a

SHA512
6c178868f475846d57e9069485a03d3648402abfb63a2c676808414c76ba526a666fb1e638896be7dd69de0010012783c21bc6ab5d277216b68b488e96853ffb

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
Filesize
308KB

MD5
14f23db01896a2f221a5c5c4cfb55d9b

SHA1
ccb92caa84eff70d652f9093a2eb17acac56027f

SHA256
6468f1fdeb2726184662117df118f8f8c7867877685bd90d7f601e66e1a5fa4a

SHA512
6c178868f475846d57e9069485a03d3648402abfb63a2c676808414c76ba526a666fb1e638896be7dd69de0010012783c21bc6ab5d277216b68b488e96853ffb

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
Filesize
308KB

MD5
14f23db01896a2f221a5c5c4cfb55d9b

SHA1
ccb92caa84eff70d652f9093a2eb17acac56027f

SHA256
6468f1fdeb2726184662117df118f8f8c7867877685bd90d7f601e66e1a5fa4a

SHA512
6c178868f475846d57e9069485a03d3648402abfb63a2c676808414c76ba526a666fb1e638896be7dd69de0010012783c21bc6ab5d277216b68b488e96853ffb

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
Filesize
308KB

MD5
14f23db01896a2f221a5c5c4cfb55d9b

SHA1
ccb92caa84eff70d652f9093a2eb17acac56027f

SHA256
6468f1fdeb2726184662117df118f8f8c7867877685bd90d7f601e66e1a5fa4a

SHA512
6c178868f475846d57e9069485a03d3648402abfb63a2c676808414c76ba526a666fb1e638896be7dd69de0010012783c21bc6ab5d277216b68b488e96853ffb

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
Filesize
308KB

MD5
14f23db01896a2f221a5c5c4cfb55d9b

SHA1
ccb92caa84eff70d652f9093a2eb17acac56027f

SHA256
6468f1fdeb2726184662117df118f8f8c7867877685bd90d7f601e66e1a5fa4a

SHA512
6c178868f475846d57e9069485a03d3648402abfb63a2c676808414c76ba526a666fb1e638896be7dd69de0010012783c21bc6ab5d277216b68b488e96853ffb

Download Submit
memory/2180-147670-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2180-147666-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2180-147662-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2180-147674-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2180-147676-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2180-147673-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2180-167678-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2180-147664-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2180-147668-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2180-147672-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2660-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2660-147661-0x0000000000470000-0x0000000000471000-memory.dmp

Filesize
4KB

Download
memory/2660-3-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2996-147716-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2996-193357-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads