55f9af3202a3c5b101549912a36863b40c7b69aa75d09d0f5d50bed63493a2db

Analysis

max time kernel
46s
max time network
50s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
19/10/2022, 13:29

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General

Target

55f9af3202a3c5b101549912a36863b40c7b69aa75d09d0f5d50bed63493a2db.exe
Size

304KB
MD5

834dd6bfc2621c6b9f595c9c0b19aa96
SHA1

0ae6b05da4fc14949200193455002f836fa34a8a
SHA256

55f9af3202a3c5b101549912a36863b40c7b69aa75d09d0f5d50bed63493a2db
SHA512

ea25b83a9675efb76e91621e5a09014dd30994309361d691bcfdfa7aeef3f6186c92d1eab8f0ee5eb8fc30783b33a997feee20ec89d5b58fc6d45915f3d3b918
SSDEEP

6144:icNM1BDtGwp9jscwrtNXZoQSbGqJDIy88YaR5iLFBq5+Z6:iyKjsXtoQSz78/aR5iGW6

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
560	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	55f9af3202a3c5b101549912a36863b40c7b69aa75d09d0f5d50bed63493a2db.exe
File created	C:\PROGRA~3\Mozilla\segfnra.dll	jjruejn.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
852	55f9af3202a3c5b101549912a36863b40c7b69aa75d09d0f5d50bed63493a2db.exe
560	jjruejn.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 308 wrote to memory of 560	308	taskeng.exe	28
PID 308 wrote to memory of 560	308	taskeng.exe	28
PID 308 wrote to memory of 560	308	taskeng.exe	28
PID 308 wrote to memory of 560	308	taskeng.exe	28

C:\Users\Admin\AppData\Local\Temp\55f9af3202a3c5b101549912a36863b40c7b69aa75d09d0f5d50bed63493a2db.exe
"C:\Users\Admin\AppData\Local\Temp\55f9af3202a3c5b101549912a36863b40c7b69aa75d09d0f5d50bed63493a2db.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of UnmapMainImage
PID:852

C:\Windows\system32\taskeng.exe
taskeng.exe {EEF67EFF-EEF1-45C6-B426-0AFD5E438F3E} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:308
- 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:560

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
304KB

MD5
3590b6fbb5976991d7e0e04ccc411062

SHA1
6f77a71208deb20be2672fc5b14b9c4d9525837b

SHA256
9f77188c525ad979adb253a1161dbf159a9ede36d61fc7d16fa0e4858614a419

SHA512
fdb65685dc2858a177fb407a89e02152529d4d61e05ca8a82906073340bb6037e30718a80a5bbe18a4136902d77b474af8f5c81d903345b865e52626324b0608

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

Filesize
304KB

MD5
3590b6fbb5976991d7e0e04ccc411062

SHA1
6f77a71208deb20be2672fc5b14b9c4d9525837b

SHA256
9f77188c525ad979adb253a1161dbf159a9ede36d61fc7d16fa0e4858614a419

SHA512
fdb65685dc2858a177fb407a89e02152529d4d61e05ca8a82906073340bb6037e30718a80a5bbe18a4136902d77b474af8f5c81d903345b865e52626324b0608

Download Submit
memory/560-62-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/560-63-0x0000000000460000-0x00000000004BC000-memory.dmp

Filesize
368KB

Download
memory/560-64-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/852-54-0x0000000074DA1000-0x0000000074DA3000-memory.dmp

Filesize
8KB

Download
memory/852-55-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/852-56-0x0000000001B80000-0x0000000001BDC000-memory.dmp

Filesize
368KB

Download
memory/852-57-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download