bdb342a73ba4e6933ba8430520390027f0f02b12e677364e85a4f78176a3b480

Analysis

max time kernel
118s
max time network
121s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
07/10/2023, 11:18

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General

Target

NEAS.b3847e84d2f92ea513b57aeb7fdb3f66_JC.exe
Size

384KB
MD5

b3847e84d2f92ea513b57aeb7fdb3f66
SHA1

ae97e1d3c3516a46d024b020c85284ccec40de05
SHA256

bdb342a73ba4e6933ba8430520390027f0f02b12e677364e85a4f78176a3b480
SHA512

6a0d311b23c0140e93745b65a38104c8ea3f324b9b01db121ef3db3cbf2431772d83bf65d8a3c69ca519f1b024773b907cd653e4ba9c293a0d1745ab2e5a7f2e
SSDEEP

6144:iCGJC7dIt/aY5qiP9aFCwESXkEjiPISUOgW9X+hOGzC/NM:iBJyut/kiP9awpWkmZzcukG2/

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2756	WVBJ.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\windows\WVBJ.exe	NEAS.b3847e84d2f92ea513b57aeb7fdb3f66_JC.exe
File opened for modification	C:\windows\WVBJ.exe	NEAS.b3847e84d2f92ea513b57aeb7fdb3f66_JC.exe
File created	C:\windows\WVBJ.exe.bat	NEAS.b3847e84d2f92ea513b57aeb7fdb3f66_JC.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2288	NEAS.b3847e84d2f92ea513b57aeb7fdb3f66_JC.exe
2756	WVBJ.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2288	NEAS.b3847e84d2f92ea513b57aeb7fdb3f66_JC.exe
2288	NEAS.b3847e84d2f92ea513b57aeb7fdb3f66_JC.exe
2756	WVBJ.exe
2756	WVBJ.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2288 wrote to memory of 2636	2288	NEAS.b3847e84d2f92ea513b57aeb7fdb3f66_JC.exe	28
PID 2288 wrote to memory of 2636	2288	NEAS.b3847e84d2f92ea513b57aeb7fdb3f66_JC.exe	28
PID 2288 wrote to memory of 2636	2288	NEAS.b3847e84d2f92ea513b57aeb7fdb3f66_JC.exe	28
PID 2288 wrote to memory of 2636	2288	NEAS.b3847e84d2f92ea513b57aeb7fdb3f66_JC.exe	28
PID 2636 wrote to memory of 2756	2636	cmd.exe	30
PID 2636 wrote to memory of 2756	2636	cmd.exe	30
PID 2636 wrote to memory of 2756	2636	cmd.exe	30
PID 2636 wrote to memory of 2756	2636	cmd.exe	30

C:\Users\Admin\AppData\Local\Temp\NEAS.b3847e84d2f92ea513b57aeb7fdb3f66_JC.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.b3847e84d2f92ea513b57aeb7fdb3f66_JC.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2288
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\windows\WVBJ.exe.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2636
- - C:\windows\WVBJ.exe
    C:\windows\WVBJ.exe
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of SetWindowsHookEx
    PID:2756

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\WVBJ.exe

Filesize
384KB

MD5
3b5125da578d3ec1227d3240139c58c3

SHA1
28e6ca9bddbfc81042ae2f302252d98bfcb51953

SHA256
f3432ea89a6557fc5ee15b1bfa013a62239615cb9ecb5174189a7c4f790129f1

SHA512
d81f1bf3b616d2a5cb2f191e6a58c5c3851046a86e7305b59bb8cacf90d467a06a1a1377884f71a478b732bcac80870f33ff90481f5214ab10099958cb1126ac

Download Submit
C:\Windows\WVBJ.exe.bat

Filesize
54B

MD5
5ec1269bb4bca9ef1ff4779d453ead5d

SHA1
5fe2078222291fdae0124c870b871bbe748f0f00

SHA256
dc13c8bc0d106ba00113217ad4cdedab63291f07aece4bc525183b4cf9532e55

SHA512
9ed6478a31e7f99e14518888add861944059c0e38b6892f9003f632c4b089dc3c98bc201a0720d98a998b0ce0b990976bad4c0b17fa736049bf0a594f89dab33

Download Submit
C:\windows\WVBJ.exe

Filesize
384KB

MD5
3b5125da578d3ec1227d3240139c58c3

SHA1
28e6ca9bddbfc81042ae2f302252d98bfcb51953

SHA256
f3432ea89a6557fc5ee15b1bfa013a62239615cb9ecb5174189a7c4f790129f1

SHA512
d81f1bf3b616d2a5cb2f191e6a58c5c3851046a86e7305b59bb8cacf90d467a06a1a1377884f71a478b732bcac80870f33ff90481f5214ab10099958cb1126ac

Download Submit
C:\windows\WVBJ.exe.bat

Filesize
54B

MD5
5ec1269bb4bca9ef1ff4779d453ead5d

SHA1
5fe2078222291fdae0124c870b871bbe748f0f00

SHA256
dc13c8bc0d106ba00113217ad4cdedab63291f07aece4bc525183b4cf9532e55

SHA512
9ed6478a31e7f99e14518888add861944059c0e38b6892f9003f632c4b089dc3c98bc201a0720d98a998b0ce0b990976bad4c0b17fa736049bf0a594f89dab33

Download Submit
memory/2288-0-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/2288-12-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/2636-15-0x00000000002A0000-0x00000000002D9000-memory.dmp

Filesize
228KB

Download
memory/2636-16-0x00000000002A0000-0x00000000002D9000-memory.dmp

Filesize
228KB

Download
memory/2756-18-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/2756-19-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download