b04d54b4e8bc572940fa638e699dfafa8b7efd59aefa06e24f9103aced37291b

Analysis

max time kernel
45s
max time network
49s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
23/11/2022, 22:12

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General

Target

b04d54b4e8bc572940fa638e699dfafa8b7efd59aefa06e24f9103aced37291b.exe
Size

274KB
MD5

53b74d5697a8fb550f729e5f96f0cae0
SHA1

85f8e85b6e801f75ce212a17872b4dceee9fd5d4
SHA256

b04d54b4e8bc572940fa638e699dfafa8b7efd59aefa06e24f9103aced37291b
SHA512

421fb2616fac749a10aa069d6779d3f723fcbfbce49c47efc6c990cf6006917178536f994c01e21b66ec5c842d4b11de4bc9889cab11e40280425c345a38d991
SSDEEP

6144:y0bR1+5kWFQBYAcJDpo6FPPt6g2BZ2B+Ylo63ZlDI7kcQPO:51i/ljo6d94Z2NC+H07HQPO

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1300	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\segfnra.dll	jjruejn.exe
File created	C:\PROGRA~3\Mozilla\jjruejn.exe	b04d54b4e8bc572940fa638e699dfafa8b7efd59aefa06e24f9103aced37291b.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2036 wrote to memory of 1300	2036	taskeng.exe	28
PID 2036 wrote to memory of 1300	2036	taskeng.exe	28
PID 2036 wrote to memory of 1300	2036	taskeng.exe	28
PID 2036 wrote to memory of 1300	2036	taskeng.exe	28

C:\Users\Admin\AppData\Local\Temp\b04d54b4e8bc572940fa638e699dfafa8b7efd59aefa06e24f9103aced37291b.exe
"C:\Users\Admin\AppData\Local\Temp\b04d54b4e8bc572940fa638e699dfafa8b7efd59aefa06e24f9103aced37291b.exe"
1⤵
- Drops file in Program Files directory
PID:1304

C:\Windows\system32\taskeng.exe
taskeng.exe {BFC5BC3E-20D2-4101-A07E-520C2BDDAFFC} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:2036
- C:\PROGRA~3\Mozilla\jjruejn.exe
  C:\PROGRA~3\Mozilla\jjruejn.exe -npivonl
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  PID:1300

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
274KB

MD5
bdc9e3ee7cf2ee5cc911b59b9e45c57e

SHA1
e82d4337b935e339875995c197f7446ad128b143

SHA256
c7e22f38c7929980aadae4988c14298cda0751f7692cc4de9bc67a3c0c76d760

SHA512
b383fd5ffcad55c0f51184ddbe544b7eb20026f515e338b673609dc64a8a94a1f710fdbb6161e51466f941a95b020fcbf998bcd322a9d0ceb92a612680302a2a

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

Filesize
274KB

MD5
bdc9e3ee7cf2ee5cc911b59b9e45c57e

SHA1
e82d4337b935e339875995c197f7446ad128b143

SHA256
c7e22f38c7929980aadae4988c14298cda0751f7692cc4de9bc67a3c0c76d760

SHA512
b383fd5ffcad55c0f51184ddbe544b7eb20026f515e338b673609dc64a8a94a1f710fdbb6161e51466f941a95b020fcbf998bcd322a9d0ceb92a612680302a2a

Download Submit
memory/1304-54-0x0000000000400000-0x0000000000461000-memory.dmp

Filesize
388KB

Download
memory/1304-55-0x00000000762E1000-0x00000000762E3000-memory.dmp

Filesize
8KB

Download
memory/1304-56-0x0000000000400000-0x0000000000461000-memory.dmp

Filesize
388KB

Download