3bea71d45791a91033323dca0480e1be92e46fd1a621c2668eb8d474e9bc6d83

Analysis

max time kernel
43s
max time network
48s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
30/10/2022, 05:31

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General

Target

3bea71d45791a91033323dca0480e1be92e46fd1a621c2668eb8d474e9bc6d83.exe
Size

224KB
MD5

a318643b9792e86da520cf0c5aedb380
SHA1

0619b9b2362c643821443c5d538abeddda6fc032
SHA256

3bea71d45791a91033323dca0480e1be92e46fd1a621c2668eb8d474e9bc6d83
SHA512

79c184e36a72aa3daa875baa33c7a15886832a04c7478b3d7cf3f1d0488529f4a570b781a98fc4447544ed6f087d69c3d84a90f15c7ef7f193394b2a32f1de7b
SSDEEP

6144:T44b7czK+MOjoF3/di++08qvFsRcfJgo5:84fijVjo1Fimlvybo5

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
784	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	3bea71d45791a91033323dca0480e1be92e46fd1a621c2668eb8d474e9bc6d83.exe
File created	C:\PROGRA~3\Mozilla\segfnra.dll	jjruejn.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1228	3bea71d45791a91033323dca0480e1be92e46fd1a621c2668eb8d474e9bc6d83.exe
784	jjruejn.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1428 wrote to memory of 784	1428	taskeng.exe	28
PID 1428 wrote to memory of 784	1428	taskeng.exe	28
PID 1428 wrote to memory of 784	1428	taskeng.exe	28
PID 1428 wrote to memory of 784	1428	taskeng.exe	28

C:\Users\Admin\AppData\Local\Temp\3bea71d45791a91033323dca0480e1be92e46fd1a621c2668eb8d474e9bc6d83.exe
"C:\Users\Admin\AppData\Local\Temp\3bea71d45791a91033323dca0480e1be92e46fd1a621c2668eb8d474e9bc6d83.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of UnmapMainImage
PID:1228

C:\Windows\system32\taskeng.exe
taskeng.exe {F3F73823-D8A6-4239-B7D7-78C7A9CC7FC5} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:1428
- C:\PROGRA~3\Mozilla\jjruejn.exe
  C:\PROGRA~3\Mozilla\jjruejn.exe -npivonl
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Suspicious use of UnmapMainImage
  PID:784

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
224KB

MD5
883254ba363740367062521dd3df088c

SHA1
969cd87c4481075d011938d946cc91a8faf607bd

SHA256
8873b37863683b57882448c3e2808b48baf672689e3c2cd1e7fc3ae228f007bf

SHA512
8a8ffb2a389668f0dad581144498220b1560d2cfa625a7449287a95b57e9ad0bd581080026afb66087ef922c53263572b04eac2916864005ceacce1032252fc2

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

Filesize
224KB

MD5
883254ba363740367062521dd3df088c

SHA1
969cd87c4481075d011938d946cc91a8faf607bd

SHA256
8873b37863683b57882448c3e2808b48baf672689e3c2cd1e7fc3ae228f007bf

SHA512
8a8ffb2a389668f0dad581144498220b1560d2cfa625a7449287a95b57e9ad0bd581080026afb66087ef922c53263572b04eac2916864005ceacce1032252fc2

Download Submit
memory/784-62-0x0000000000910000-0x000000000096B000-memory.dmp

Filesize
364KB

Download
memory/784-63-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/784-64-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/1228-54-0x0000000075A11000-0x0000000075A13000-memory.dmp

Filesize
8KB

Download
memory/1228-55-0x0000000000290000-0x00000000002EB000-memory.dmp

Filesize
364KB

Download
memory/1228-56-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/1228-57-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download