8ef16d53048177e8d3084bb8bbc4c1f7f291b56d25e15f6523aab7712805856e

Analysis

max time kernel
53s
max time network
37s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
22/10/2023, 17:33

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General

Target

NEAS.fa35b2daeea4893c39c7757406645af0.exe
Size

473KB
MD5

fa35b2daeea4893c39c7757406645af0
SHA1

5a4db2dfa8b4065ec4a07eac157d9d0b9c6609a7
SHA256

8ef16d53048177e8d3084bb8bbc4c1f7f291b56d25e15f6523aab7712805856e
SHA512

a24a57ea24a1751bed2186c267190ecc18feefed2419a94566d7839b8034fa6fe9c695a4b0de7bbf73bb6486d857eb61016733f2cca93238dd305bee7f23edf1
SSDEEP

1536:ur3Z5IfQmv81a1xyXHZ+NGQSLNmCm6oyz7jBd7qDmbNPMJAVC+++6:yJOfQm01mxyXHZKG7pm6j77C

Score

8^/10

evasion

Malware Config

Signatures

Sets file to hidden 1 TTPs 1 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1564.001

pid	Process
2912	attrib.exe

Deletes itself 1 IoCs

pid	Process
1036	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2796	rwmhost.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\Debug\rwmhost.exe	NEAS.fa35b2daeea4893c39c7757406645af0.exe
File opened for modification	C:\Windows\Debug\rwmhost.exe	NEAS.fa35b2daeea4893c39c7757406645af0.exe
File opened for modification	C:\Windows\Debug\rwmhost.exe	attrib.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2140	NEAS.fa35b2daeea4893c39c7757406645af0.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2140 wrote to memory of 2912	2140	NEAS.fa35b2daeea4893c39c7757406645af0.exe	28
PID 2140 wrote to memory of 2912	2140	NEAS.fa35b2daeea4893c39c7757406645af0.exe	28
PID 2140 wrote to memory of 2912	2140	NEAS.fa35b2daeea4893c39c7757406645af0.exe	28
PID 2140 wrote to memory of 2912	2140	NEAS.fa35b2daeea4893c39c7757406645af0.exe	28
PID 2140 wrote to memory of 1036	2140	NEAS.fa35b2daeea4893c39c7757406645af0.exe	31
PID 2140 wrote to memory of 1036	2140	NEAS.fa35b2daeea4893c39c7757406645af0.exe	31
PID 2140 wrote to memory of 1036	2140	NEAS.fa35b2daeea4893c39c7757406645af0.exe	31
PID 2140 wrote to memory of 1036	2140	NEAS.fa35b2daeea4893c39c7757406645af0.exe	31

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2912	attrib.exe

C:\Users\Admin\AppData\Local\Temp\NEAS.fa35b2daeea4893c39c7757406645af0.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.fa35b2daeea4893c39c7757406645af0.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2140
- C:\Windows\SysWOW64\attrib.exe
  attrib +a +s +h +r C:\Windows\Debug\rwmhost.exe
  2⤵
  - Sets file to hidden
  - Drops file in Windows directory
  - Views/modifies file attributes
  PID:2912
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\NEASFA~1.EXE > nul
  2⤵
  - Deletes itself
  PID:1036

C:\Windows\Debug\rwmhost.exe
C:\Windows\Debug\rwmhost.exe
1⤵
- Executes dropped EXE
PID:2796

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\Debug\rwmhost.exe

Filesize
473KB

MD5
226563f4ad3686cf36b8679b29f4de67

SHA1
3b325b0458f73e5b63df449ea4e7fbaf121963fa

SHA256
8d978e747c7672cac1a44c72e4b64b1b3b1ae1a428bde1b1426ecc9b1daa131b

SHA512
77c617b9bd0ff6584b8ddd1f944875863b0df5f52afc87ca055183bbccc23482eb6292dd6dc07075f37ebc1cee1ef4e6f2f9a5bf122373ef6168f48758d2f3be

Download Submit
C:\Windows\debug\rwmhost.exe

Filesize
473KB

MD5
226563f4ad3686cf36b8679b29f4de67

SHA1
3b325b0458f73e5b63df449ea4e7fbaf121963fa

SHA256
8d978e747c7672cac1a44c72e4b64b1b3b1ae1a428bde1b1426ecc9b1daa131b

SHA512
77c617b9bd0ff6584b8ddd1f944875863b0df5f52afc87ca055183bbccc23482eb6292dd6dc07075f37ebc1cee1ef4e6f2f9a5bf122373ef6168f48758d2f3be

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads