neshta | 540a9949b24402819b69c2e701ac9a28d8a1f2e6c58fbf7abc63bbc1dc5ce53d

Analysis

max time kernel
126s
max time network
34s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
14-06-2023 07:36

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General

Target

server.exe
Size

149KB
MD5

6f2e1c1cb75be2e41c2e584ad9519185
SHA1

091930c27a0515907848c3ff639f3f9342584e26
SHA256

540a9949b24402819b69c2e701ac9a28d8a1f2e6c58fbf7abc63bbc1dc5ce53d
SHA512

6c8fc29b79b273785edecefd4fb6f314e9b6780e7c6a7616ff954cab7a1faf47cc5eab2ebdd9df536da45425c9f0249e98a6bda8e65ed5f591de706d82d55a70
SSDEEP

1536:JxqjQ+P04wsmJCDcQlwJdMgxHJaAoHoc2x7bZoYBMHJaAoHoc2x7bZoYBS:sr85CDkPJQITxyYoQITxyY0

Score

10^/10

neshta runningrat persistence rat spyware stealer

Malware Config

Signatures

Detect Neshta payload 5 IoCs

resource	yara_rule
behavioral1/files/0x0001000000010323-64.dat	family_neshta
behavioral1/memory/1456-159-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/1456-160-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/1456-161-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/1456-163-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta

Neshta
Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.
persistence spyware neshta
RunningRat
RunningRat is a remote access trojan first seen in 2018.
rat runningrat

RunningRat payload 3 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012301-56.dat	family_runningrat
behavioral1/files/0x000a000000012301-59.dat	family_runningrat
behavioral1/memory/928-65-0x0000000010000000-0x000000001000F000-memory.dmp	family_runningrat

Sets DLL path for service in the registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SRDSL\Parameters\ServiceDll = "C:\\Windows\\system32\\7076486.dll"	server.exe

Executes dropped EXE 2 IoCs

pid	Process
928	server.exe
1620	SRDSL.exe

Loads dropped DLL 9 IoCs

pid	Process
1456	server.exe
928	server.exe
984	svchost.exe
1456	server.exe
984	svchost.exe
1620	SRDSL.exe
1620	SRDSL.exe
1620	SRDSL.exe
1620	SRDSL.exe

Modifies system executable filetype association 2 TTPs 1 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1042

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

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\7076486.dll	server.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	server.exe
File created	C:\Windows\SysWOW64\SRDSL.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\SRDSL.exe	svchost.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\PROGRA~2\WINDOW~2\ACCESS~1\wordpad.exe	server.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Resource\Icons\SC_REA~1.EXE	server.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOICONS.EXE	server.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GRAPH.EXE	server.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\BCSSync.exe	server.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\ImagingDevices.exe	server.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{4D8DC~1\VC_RED~1.EXE	server.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBEU~1.EXE	server.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBE_~1.EXE	server.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\LICLUA.EXE	server.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ieinstal.exe	server.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CNFNOT32.EXE	server.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\AcroRd32.exe	server.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOXMLED.EXE	server.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\SOURCE~1\OSE.EXE	server.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE	server.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\INFOPATH.EXE	server.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSQRY32.EXE	server.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\A3DUTI~1.EXE	server.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\ink\mip.exe	server.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\Setup.exe	server.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{33D1F~1\VCREDI~1.EXE	server.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\Eula.exe	server.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\1033\ONELEV.EXE	server.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\setup_wm.exe	server.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DWTRIG20.EXE	server.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~4.EXE	server.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORE.EXE	server.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\WinMail.exe	server.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ADOBEC~1.EXE	server.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE	server.exe
File opened for modification	C:\PROGRA~2\COMMON~1\ADOBEA~1\Versions\1.0\ADOBEA~1.EXE	server.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpconfig.exe	server.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpshare.exe	server.exe
File opened for modification	C:\PROGRA~2\WI4223~1\sidebar.exe	server.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{57A73~1\VC_RED~1.EXE	server.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\IECONT~1.EXE	server.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTEM.EXE	server.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\SELFCERT.EXE	server.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\TextConv\WksConv\Wkconv.exe	server.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GROOVEMN.EXE	server.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\NAMECO~1.EXE	server.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\OIS.EXE	server.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WORDICON.EXE	server.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ACROBR~1.EXE	server.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\Oarpmany.exe	server.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\ODeploy.exe	server.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmlaunch.exe	server.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE	server.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\POWERPNT.EXE	server.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmprph.exe	server.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DW20.EXE	server.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~3.EXE	server.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTE.EXE	server.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORDB.EXE	server.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\XLICONS.EXE	server.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wab.exe	server.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GO664E~1.EXE	server.exe
File opened for modification	C:\PROGRA~2\Google\Update\DISABL~1.EXE	server.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ielowutil.exe	server.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~1.EXE	server.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ACCICONS.EXE	server.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE	server.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOHTMED.EXE	server.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\svchost.com	server.exe

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

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

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1456 wrote to memory of 928	1456	server.exe	28
PID 1456 wrote to memory of 928	1456	server.exe	28
PID 1456 wrote to memory of 928	1456	server.exe	28
PID 1456 wrote to memory of 928	1456	server.exe	28
PID 984 wrote to memory of 1620	984	svchost.exe	31
PID 984 wrote to memory of 1620	984	svchost.exe	31
PID 984 wrote to memory of 1620	984	svchost.exe	31
PID 984 wrote to memory of 1620	984	svchost.exe	31

C:\Users\Admin\AppData\Local\Temp\server.exe
"C:\Users\Admin\AppData\Local\Temp\server.exe"
1⤵
- Loads dropped DLL
- Modifies system executable filetype association
- Drops file in Program Files directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1456
- C:\Users\Admin\AppData\Local\Temp\3582-490\server.exe
  "C:\Users\Admin\AppData\Local\Temp\3582-490\server.exe"
  2⤵
  - Sets DLL path for service in the registry
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  PID:928

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "SRDSL"
1⤵
PID:520

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "SRDSL"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:984
- C:\Windows\SysWOW64\SRDSL.exe
  C:\Windows\system32\SRDSL.exe "c:\windows\system32\7076486.dll",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:1620

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Change Default File Association

T1042

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

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:\MSOCache\ALLUSE~1\{90140~1\dwtrig20.exe

Filesize
547KB

MD5
cf6c595d3e5e9667667af096762fd9c4

SHA1
9bb44da8d7f6457099cb56e4f7d1026963dce7ce

SHA256
593e60cc30ae0789448547195af77f550387f6648d45847ea244dd0dd7abf03d

SHA512
ff4f789df9e6a6d0fbe12b3250f951fcf11e857906c65e96a30bb46266e7e1180d6103a03db2f3764e0d1346b2de7afba8259ba080057e4a268e45e8654dfa80

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

Filesize
108KB

MD5
0476e0ff19dc008b1d02758d9a926b62

SHA1
31aa40a2030671d5104eea4aeb56ec1932334b52

SHA256
88c48fd936aed853b3d1b2a98ce73230318e571056e7341ba4d620ac78f0dae7

SHA512
f4f4e49c203ee2cf4fd5b26523b696947eb0c2761b5f3e10fcf29c21a16c6201b6047851829ce108350b8d9ee7bd2837242a6948f605cd2e0e0f9e143c2b43c6

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

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

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

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
\??\c:\windows\SysWOW64\7076486.dll

Filesize
37KB

MD5
4103032917619dcc7106b44c7e352896

SHA1
408b944b675bc32d4b4f179c62a1f4fb4afbecc4

SHA256
ebf8697f5794258807543aa65ee24c44d7a705f4696e993c403425dacd7b2986

SHA512
178f9816a1e8467fdce2fab4f188c0e897ddec82eb101696b3af49bcaed93942746f9a3ade5718d7d47477e415beaf0ad638751dca87adb99c425d409cde9c56

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\server.exe

Filesize
108KB

MD5
0476e0ff19dc008b1d02758d9a926b62

SHA1
31aa40a2030671d5104eea4aeb56ec1932334b52

SHA256
88c48fd936aed853b3d1b2a98ce73230318e571056e7341ba4d620ac78f0dae7

SHA512
f4f4e49c203ee2cf4fd5b26523b696947eb0c2761b5f3e10fcf29c21a16c6201b6047851829ce108350b8d9ee7bd2837242a6948f605cd2e0e0f9e143c2b43c6

Download Submit
\Windows\SysWOW64\7076486.dll

Filesize
37KB

MD5
4103032917619dcc7106b44c7e352896

SHA1
408b944b675bc32d4b4f179c62a1f4fb4afbecc4

SHA256
ebf8697f5794258807543aa65ee24c44d7a705f4696e993c403425dacd7b2986

SHA512
178f9816a1e8467fdce2fab4f188c0e897ddec82eb101696b3af49bcaed93942746f9a3ade5718d7d47477e415beaf0ad638751dca87adb99c425d409cde9c56

Download Submit
\Windows\SysWOW64\7076486.dll

Filesize
37KB

MD5
4103032917619dcc7106b44c7e352896

SHA1
408b944b675bc32d4b4f179c62a1f4fb4afbecc4

SHA256
ebf8697f5794258807543aa65ee24c44d7a705f4696e993c403425dacd7b2986

SHA512
178f9816a1e8467fdce2fab4f188c0e897ddec82eb101696b3af49bcaed93942746f9a3ade5718d7d47477e415beaf0ad638751dca87adb99c425d409cde9c56

Download Submit
\Windows\SysWOW64\7076486.dll

Filesize
37KB

MD5
4103032917619dcc7106b44c7e352896

SHA1
408b944b675bc32d4b4f179c62a1f4fb4afbecc4

SHA256
ebf8697f5794258807543aa65ee24c44d7a705f4696e993c403425dacd7b2986

SHA512
178f9816a1e8467fdce2fab4f188c0e897ddec82eb101696b3af49bcaed93942746f9a3ade5718d7d47477e415beaf0ad638751dca87adb99c425d409cde9c56

Download Submit
\Windows\SysWOW64\7076486.dll

Filesize
37KB

MD5
4103032917619dcc7106b44c7e352896

SHA1
408b944b675bc32d4b4f179c62a1f4fb4afbecc4

SHA256
ebf8697f5794258807543aa65ee24c44d7a705f4696e993c403425dacd7b2986

SHA512
178f9816a1e8467fdce2fab4f188c0e897ddec82eb101696b3af49bcaed93942746f9a3ade5718d7d47477e415beaf0ad638751dca87adb99c425d409cde9c56

Download Submit
\Windows\SysWOW64\7076486.dll

Filesize
37KB

MD5
4103032917619dcc7106b44c7e352896

SHA1
408b944b675bc32d4b4f179c62a1f4fb4afbecc4

SHA256
ebf8697f5794258807543aa65ee24c44d7a705f4696e993c403425dacd7b2986

SHA512
178f9816a1e8467fdce2fab4f188c0e897ddec82eb101696b3af49bcaed93942746f9a3ade5718d7d47477e415beaf0ad638751dca87adb99c425d409cde9c56

Download Submit
\Windows\SysWOW64\7076486.dll

Filesize
37KB

MD5
4103032917619dcc7106b44c7e352896

SHA1
408b944b675bc32d4b4f179c62a1f4fb4afbecc4

SHA256
ebf8697f5794258807543aa65ee24c44d7a705f4696e993c403425dacd7b2986

SHA512
178f9816a1e8467fdce2fab4f188c0e897ddec82eb101696b3af49bcaed93942746f9a3ade5718d7d47477e415beaf0ad638751dca87adb99c425d409cde9c56

Download Submit
\Windows\SysWOW64\SRDSL.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
memory/928-71-0x0000000000250000-0x000000000025D000-memory.dmp

Filesize
52KB

Download
memory/928-65-0x0000000010000000-0x000000001000F000-memory.dmp

Filesize
60KB

Download
memory/1456-159-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1456-160-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1456-161-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1456-163-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads