b957d5108eb9683c8ac3792d0ce050223443b641341ef3242238eb403d1e0c0c

Analysis

max time kernel
47s
max time network
52s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
02/10/2022, 12:28

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General

Target

b957d5108eb9683c8ac3792d0ce050223443b641341ef3242238eb403d1e0c0c.exe
Size

428KB
MD5

65569fa26caf76f574bffbfaa7bed1f0
SHA1

2c993848f0db43a6e5c018e882eac7c0f101e310
SHA256

b957d5108eb9683c8ac3792d0ce050223443b641341ef3242238eb403d1e0c0c
SHA512

76a40271606dc0429f7914ea0f9ebbf4e05802aff2bdb33f8c947166e1b441e9ecb0e397a3ef78fb9b5cb044d608926be1b8fb974b00fe4e306857c4ae53dc08
SSDEEP

12288:4Ve/v5hGCyB3R20YnzgNJaeD9oBAS2b31V4o0wN6:4VgBi3dY4JX9qM3H8i6

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
856	jjruejn.exe

Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\PROGRA~3\Mozilla\jjruejn.exe	b957d5108eb9683c8ac3792d0ce050223443b641341ef3242238eb403d1e0c0c.exe
File created	C:\PROGRA~3\Mozilla\segfnra.dll	jjruejn.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 836 wrote to memory of 856	836	taskeng.exe	28
PID 836 wrote to memory of 856	836	taskeng.exe	28
PID 836 wrote to memory of 856	836	taskeng.exe	28
PID 836 wrote to memory of 856	836	taskeng.exe	28

C:\Users\Admin\AppData\Local\Temp\b957d5108eb9683c8ac3792d0ce050223443b641341ef3242238eb403d1e0c0c.exe
"C:\Users\Admin\AppData\Local\Temp\b957d5108eb9683c8ac3792d0ce050223443b641341ef3242238eb403d1e0c0c.exe"
1⤵
- Drops file in Program Files directory
PID:1768

C:\Windows\system32\taskeng.exe
taskeng.exe {5ED93F09-201D-428A-AF28-DDC6312CE32D} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:836
- C:\PROGRA~3\Mozilla\jjruejn.exe
  C:\PROGRA~3\Mozilla\jjruejn.exe -npivonl
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  PID:856

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\PROGRA~3\Mozilla\jjruejn.exe

Filesize
428KB

MD5
379bdb6edaa616935c9201862d30dd38

SHA1
db23656978fe5b0dc540635fc277cd06fa65caf4

SHA256
9c4844b7ed0c9b6c487e204fe6dac06c9b78919c44514938d19a878501bb615b

SHA512
95f61df3a60d075c1ee6d6762ea60b11965752144384ccfe874e46eae8cbcdc0ef3502dd5d8bbfa691747c535865e37a1e550c83d2686e17287cd6806bc695dc

Download Submit
C:\PROGRA~3\Mozilla\jjruejn.exe

Filesize
428KB

MD5
379bdb6edaa616935c9201862d30dd38

SHA1
db23656978fe5b0dc540635fc277cd06fa65caf4

SHA256
9c4844b7ed0c9b6c487e204fe6dac06c9b78919c44514938d19a878501bb615b

SHA512
95f61df3a60d075c1ee6d6762ea60b11965752144384ccfe874e46eae8cbcdc0ef3502dd5d8bbfa691747c535865e37a1e550c83d2686e17287cd6806bc695dc

Download Submit
memory/856-67-0x000000000043A000-0x000000000047D000-memory.dmp

Filesize
268KB

Download
memory/856-68-0x0000000000430000-0x000000000048B000-memory.dmp

Filesize
364KB

Download
memory/1768-54-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/1768-56-0x00000000006E0000-0x000000000073B000-memory.dmp

Filesize
364KB

Download
memory/1768-55-0x0000000076961000-0x0000000076963000-memory.dmp

Filesize
8KB

Download