neshta | a3eaed42c0457e69736b65abc55639deba7e6bfb94948dd3ed8b5f6ca968a979

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20220718-en
resource tags

arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
submitted
29-07-2022 06:53

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General

Target

tmp.exe
Size

140KB
MD5

cde0aa36b80beafa74e258c5384ab684
SHA1

0678a1ca625aebb6e88d38e3dc0796be573b5c06
SHA256

a3eaed42c0457e69736b65abc55639deba7e6bfb94948dd3ed8b5f6ca968a979
SHA512

373d420c21dfff931396416781011930701544c5a241097044f402079f3dcd2a35b982fe3eac66899692071222f047fdf4bff0a5e0466fb2aa88244d6a20e4d7

Score

10^/10

neshta remcos president persistence rat spyware stealer

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

President

winam.ddns.net:2401

dropy2.ddns.net:2400

dropy1.ddns.net:2404

Attributes

audio_folder
audio
audio_path
%AppData%
audio_record_time
5
connect_delay
0
connect_interval
5
copy_file
svchost.exe
copy_folder
updates
delete_file
true
hide_file
true
hide_keylog_file
false
install_flag
true
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
windows
keylog_path
%AppData%
mouse_option
false
mutex
remcos_bvmobmufbe
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screens
screenshot_path
%AppData%
screenshot_time
1
startup_value
Logs
take_screenshot_option
false
take_screenshot_time
5

Signatures

Modifies system executable filetype association 2 TTPs 1 IoCs
persistence

Modify Registry
T1112

Change Default File Association
T1042

Processes:

tmp.exe

description ioc process

Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*" tmp.exe
Neshta
Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.
persistence spyware neshta
Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos
Executes dropped EXE 2 IoCs

Processes:

tmp.exesvchost.exe

pid process

2020 tmp.exe
1892 svchost.exe
Loads dropped DLL 6 IoCs

Processes:

tmp.execmd.exe

pid process

1680 tmp.exe
1680 tmp.exe
1680 tmp.exe
2008 cmd.exe
2008 cmd.exe
1680 tmp.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	tmp.exe

pid	process
2020	tmp.exe
1892	svchost.exe

pid	process
1680	tmp.exe
1680	tmp.exe
1680	tmp.exe
2008	cmd.exe
2008	cmd.exe
1680	tmp.exe

Drops file in Program Files directory 64 IoCs

Processes:

tmp.exe

description	ioc	process
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DW20.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\LICLUA.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOICONS.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~3.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\VPREVIEW.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WINWORD.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\ACCESS~1\wordpad.exe	tmp.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{57A73~1\VC_RED~1.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\SOURCE~1\OSE.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GO664E~1.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\OIS.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ACROBR~1.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOF5E2~1.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CNFNOT32.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\WinMail.exe	tmp.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\WMPDMC.exe	tmp.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpshare.exe	tmp.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\ImagingDevices.exe	tmp.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~2.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\IECONT~1.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOHTMED.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpconfig.exe	tmp.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBEU~1.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\BCSSync.exe	tmp.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wabmig.exe	tmp.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\FLTLDR.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOBD5D~1.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GROOVEMN.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\UNINST~1.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmlaunch.exe	tmp.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmprph.exe	tmp.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Resource\Icons\SC_REA~1.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\SETUPF~1\{AC76B~1\Setup.exe	tmp.exe
File opened for modification	C:\PROGRA~2\COMMON~1\ADOBEA~1\Versions\1.0\ADOBEA~1.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\ink\mip.exe	tmp.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOXMLED.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\misc.exe	tmp.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOSYNC.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORE.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\setup_wm.exe	tmp.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\EQUATION\EQNEDT32.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\Setup.exe	tmp.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{61087~1\VCREDI~1.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\AcroRd32.exe	tmp.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~4.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\Google\Update\DISABL~1.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\PPTICO.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ACCICONS.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CLVIEW.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTE.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\POWERPNT.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBE_~1.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WORDICON.EXE	tmp.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ielowutil.exe	tmp.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\Eula.exe	tmp.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\TextConv\WksConv\Wkconv.exe	tmp.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ieinstal.exe	tmp.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\1033\ONELEV.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GRAPH.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOUC.EXE	tmp.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSQRY32.EXE	tmp.exe

Drops file in Windows directory 1 IoCs

Processes:

tmp.exe

description ioc process

File opened for modification C:\Windows\svchost.com tmp.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Modifies registry class 1 IoCs

Processes:

tmp.exe

description ioc process

Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*" tmp.exe
Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

1968 PING.EXE
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

svchost.exe

pid process

1892 svchost.exe

description	ioc	process
File opened for modification	C:\Windows\svchost.com	tmp.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	tmp.exe

pid	process
1968	PING.EXE

pid	process
1892	svchost.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

tmp.exetmp.execmd.exe

description	pid	process	target process
PID 1680 wrote to memory of 2020	1680	tmp.exe	tmp.exe
PID 1680 wrote to memory of 2020	1680	tmp.exe	tmp.exe
PID 1680 wrote to memory of 2020	1680	tmp.exe	tmp.exe
PID 1680 wrote to memory of 2020	1680	tmp.exe	tmp.exe
PID 2020 wrote to memory of 2008	2020	tmp.exe	cmd.exe
PID 2020 wrote to memory of 2008	2020	tmp.exe	cmd.exe
PID 2020 wrote to memory of 2008	2020	tmp.exe	cmd.exe
PID 2020 wrote to memory of 2008	2020	tmp.exe	cmd.exe
PID 2020 wrote to memory of 2008	2020	tmp.exe	cmd.exe
PID 2020 wrote to memory of 2008	2020	tmp.exe	cmd.exe
PID 2020 wrote to memory of 2008	2020	tmp.exe	cmd.exe
PID 2008 wrote to memory of 1968	2008	cmd.exe	PING.EXE
PID 2008 wrote to memory of 1968	2008	cmd.exe	PING.EXE
PID 2008 wrote to memory of 1968	2008	cmd.exe	PING.EXE
PID 2008 wrote to memory of 1968	2008	cmd.exe	PING.EXE
PID 2008 wrote to memory of 1892	2008	cmd.exe	svchost.exe
PID 2008 wrote to memory of 1892	2008	cmd.exe	svchost.exe
PID 2008 wrote to memory of 1892	2008	cmd.exe	svchost.exe
PID 2008 wrote to memory of 1892	2008	cmd.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Modifies system executable filetype association
- Loads dropped DLL
- Drops file in Program Files directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1680
- C:\Users\Admin\AppData\Local\Temp\3582-490\tmp.exe
  "C:\Users\Admin\AppData\Local\Temp\3582-490\tmp.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:2020
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\install.bat" "
    3⤵
    - Loads dropped DLL
    - Suspicious use of WriteProcessMemory
    PID:2008
  - - C:\Windows\SysWOW64\PING.EXE
      PING 127.0.0.1 -n 2
      4⤵
      Runs ping.exe
      PID:1968
  - - C:\Users\Admin\AppData\Roaming\updates\svchost.exe
      "C:\Users\Admin\AppData\Roaming\updates\svchost.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetWindowsHookEx
      PID:1892

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Change Default File Association

T1042

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\3582-490\tmp.exe

Filesize
100KB

MD5
a693cb1e220a688311032a45f34e42cc

SHA1
8f99519487ee96ef05c4d5f94a06080173b05d9c

SHA256
29eeb8781216adf0c1a47bedab9f2eb5315a9888ceae6ba1525e7d5ecce1eeee

SHA512
50c2c6f62912a4c965d3dad4e4ebb9c18b00028a0763dbecc15e2f5da46f7d63dd83b9c21f76f3029530b3feb59a28fa4b95b30438fefb14a5341338ca604a7c

Download Submit
C:\Users\Admin\AppData\Local\Temp\3582-490\tmp.exe

Filesize
100KB

MD5
a693cb1e220a688311032a45f34e42cc

SHA1
8f99519487ee96ef05c4d5f94a06080173b05d9c

SHA256
29eeb8781216adf0c1a47bedab9f2eb5315a9888ceae6ba1525e7d5ecce1eeee

SHA512
50c2c6f62912a4c965d3dad4e4ebb9c18b00028a0763dbecc15e2f5da46f7d63dd83b9c21f76f3029530b3feb59a28fa4b95b30438fefb14a5341338ca604a7c

Download Submit
C:\Users\Admin\AppData\Local\Temp\install.bat

Filesize
159B

MD5
67d9abd5d71999ec4a4ae9cef48e47b2

SHA1
999a7e56845e367931252601787225153a0bc317

SHA256
658dbf3d19288b9c64381c653f07425778692d343fb4abbf506676cbd6853e7f

SHA512
c5f2e30fde814b73b1dd8d10b53eed4411b963e824a6df167f4dd5f6cb5b94b78032727940ad8a8e239a98d72fcc471dafd480632a30c42794220bfb307e4bc7

Download Submit
C:\Users\Admin\AppData\Roaming\updates\svchost.exe

Filesize
100KB

MD5
a693cb1e220a688311032a45f34e42cc

SHA1
8f99519487ee96ef05c4d5f94a06080173b05d9c

SHA256
29eeb8781216adf0c1a47bedab9f2eb5315a9888ceae6ba1525e7d5ecce1eeee

SHA512
50c2c6f62912a4c965d3dad4e4ebb9c18b00028a0763dbecc15e2f5da46f7d63dd83b9c21f76f3029530b3feb59a28fa4b95b30438fefb14a5341338ca604a7c

Download Submit
C:\Users\Admin\AppData\Roaming\updates\svchost.exe

Filesize
100KB

MD5
a693cb1e220a688311032a45f34e42cc

SHA1
8f99519487ee96ef05c4d5f94a06080173b05d9c

SHA256
29eeb8781216adf0c1a47bedab9f2eb5315a9888ceae6ba1525e7d5ecce1eeee

SHA512
50c2c6f62912a4c965d3dad4e4ebb9c18b00028a0763dbecc15e2f5da46f7d63dd83b9c21f76f3029530b3feb59a28fa4b95b30438fefb14a5341338ca604a7c

Download Submit
\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE

Filesize
252KB

MD5
9e2b9928c89a9d0da1d3e8f4bd96afa7

SHA1
ec66cda99f44b62470c6930e5afda061579cde35

SHA256
8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

SHA512
2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

Download Submit
\Users\Admin\AppData\Local\Temp\3582-490\tmp.exe

Filesize
100KB

MD5
a693cb1e220a688311032a45f34e42cc

SHA1
8f99519487ee96ef05c4d5f94a06080173b05d9c

SHA256
29eeb8781216adf0c1a47bedab9f2eb5315a9888ceae6ba1525e7d5ecce1eeee

SHA512
50c2c6f62912a4c965d3dad4e4ebb9c18b00028a0763dbecc15e2f5da46f7d63dd83b9c21f76f3029530b3feb59a28fa4b95b30438fefb14a5341338ca604a7c

Download Submit
\Users\Admin\AppData\Local\Temp\3582-490\tmp.exe

Filesize
100KB

MD5
a693cb1e220a688311032a45f34e42cc

SHA1
8f99519487ee96ef05c4d5f94a06080173b05d9c

SHA256
29eeb8781216adf0c1a47bedab9f2eb5315a9888ceae6ba1525e7d5ecce1eeee

SHA512
50c2c6f62912a4c965d3dad4e4ebb9c18b00028a0763dbecc15e2f5da46f7d63dd83b9c21f76f3029530b3feb59a28fa4b95b30438fefb14a5341338ca604a7c

Download Submit
\Users\Admin\AppData\Roaming\updates\svchost.exe

Filesize
100KB

MD5
a693cb1e220a688311032a45f34e42cc

SHA1
8f99519487ee96ef05c4d5f94a06080173b05d9c

SHA256
29eeb8781216adf0c1a47bedab9f2eb5315a9888ceae6ba1525e7d5ecce1eeee

SHA512
50c2c6f62912a4c965d3dad4e4ebb9c18b00028a0763dbecc15e2f5da46f7d63dd83b9c21f76f3029530b3feb59a28fa4b95b30438fefb14a5341338ca604a7c

Download Submit
\Users\Admin\AppData\Roaming\updates\svchost.exe

Filesize
100KB

MD5
a693cb1e220a688311032a45f34e42cc

SHA1
8f99519487ee96ef05c4d5f94a06080173b05d9c

SHA256
29eeb8781216adf0c1a47bedab9f2eb5315a9888ceae6ba1525e7d5ecce1eeee

SHA512
50c2c6f62912a4c965d3dad4e4ebb9c18b00028a0763dbecc15e2f5da46f7d63dd83b9c21f76f3029530b3feb59a28fa4b95b30438fefb14a5341338ca604a7c

Download Submit
\Users\Admin\AppData\Roaming\updates\svchost.exe

Filesize
100KB

MD5
a693cb1e220a688311032a45f34e42cc

SHA1
8f99519487ee96ef05c4d5f94a06080173b05d9c

SHA256
29eeb8781216adf0c1a47bedab9f2eb5315a9888ceae6ba1525e7d5ecce1eeee

SHA512
50c2c6f62912a4c965d3dad4e4ebb9c18b00028a0763dbecc15e2f5da46f7d63dd83b9c21f76f3029530b3feb59a28fa4b95b30438fefb14a5341338ca604a7c

Download Submit
memory/1680-54-0x00000000756C1000-0x00000000756C3000-memory.dmp

Filesize
8KB

Download
memory/1892-68-0x0000000000000000-mapping.dmp

Download
memory/1968-63-0x0000000000000000-mapping.dmp

Download
memory/2008-61-0x0000000000000000-mapping.dmp

Download
memory/2020-57-0x0000000000000000-mapping.dmp

Download