5b8e4397bb3a785f3dcf115515a50ef6324d2bca74baced3e0ae4ef85295eb11

Analysis

max time kernel
120s
max time network
17s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
03/10/2024, 20:35

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

5b8e4397bb3a785f3dcf115515a50ef6324d2bca74baced3e0ae4ef85295eb11N.exe
Size

410KB
MD5

0decb70b94cb40f4a54a05f701f82420
SHA1

cbedb69f4d14e2c90cdc3b1e0d16648384db3a3a
SHA256

5b8e4397bb3a785f3dcf115515a50ef6324d2bca74baced3e0ae4ef85295eb11
SHA512

14faeff2bc0208a2f77ce858ba11f00d7253135f2e4b73c14f8da2c6741273c0a735b5ef39b1b8b0650e9fcf903fad19378736da41d1a409351db8aaffe0a708
SSDEEP

6144:6BxIK3CTW8TMjp41u6nyHwnZTvFC/0qAcWiujK21ZyOQUztIIHHg1kAuZBLtOus:CxIK9V14ImyHYTvFmwTmqztIkHSkZt4

Score

7^/10

discovery persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2696	grxmn.exe

Loads dropped DLL 2 IoCs

pid	Process
2356	5b8e4397bb3a785f3dcf115515a50ef6324d2bca74baced3e0ae4ef85295eb11N.exe
2356	5b8e4397bb3a785f3dcf115515a50ef6324d2bca74baced3e0ae4ef85295eb11N.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows\CurrentVersion\Run\Microsoft® Windows® Operating System = "C:\\ProgramData\\grxmn.exe"	grxmn.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5b8e4397bb3a785f3dcf115515a50ef6324d2bca74baced3e0ae4ef85295eb11N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	grxmn.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2356 wrote to memory of 2696	2356	5b8e4397bb3a785f3dcf115515a50ef6324d2bca74baced3e0ae4ef85295eb11N.exe	30
PID 2356 wrote to memory of 2696	2356	5b8e4397bb3a785f3dcf115515a50ef6324d2bca74baced3e0ae4ef85295eb11N.exe	30
PID 2356 wrote to memory of 2696	2356	5b8e4397bb3a785f3dcf115515a50ef6324d2bca74baced3e0ae4ef85295eb11N.exe	30
PID 2356 wrote to memory of 2696	2356	5b8e4397bb3a785f3dcf115515a50ef6324d2bca74baced3e0ae4ef85295eb11N.exe	30

C:\Users\Admin\AppData\Local\Temp\5b8e4397bb3a785f3dcf115515a50ef6324d2bca74baced3e0ae4ef85295eb11N.exe
"C:\Users\Admin\AppData\Local\Temp\5b8e4397bb3a785f3dcf115515a50ef6324d2bca74baced3e0ae4ef85295eb11N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2356
- C:\ProgramData\grxmn.exe
  "C:\ProgramData\grxmn.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  PID:2696

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Documents and Settings .exe

Filesize
410KB

MD5
91d667633c9c48564dac8263dbbd6d5b

SHA1
5ecffbf3d747ca2d9c33106ffd1f7307c1782f06

SHA256
a7cf9fb917231bf061df665e845a6cc9cbdddb06ab132ef46911971183ee12cc

SHA512
958f61af3a0e6d0e9c0405e672c2309b807289789d5a62f327bb42d311de1c37ef7f25b052148e8b24a209a517df7608cb66616665674b231348ed867533725e

Download Submit
C:\ProgramData\Saaaalamm\Mira.h

Filesize
150KB

MD5
aef10b9ba25f907727558514f2dfbab0

SHA1
d67383ef1b23d4da72339d66de9541c2e1efaf53

SHA256
f5e77ddc706f6dffe056dc2f8a88adece36e0e4552bc70a85f36b1e01fe547ad

SHA512
5e607a70ca3fa489897f8df0c96570709839364cd8cabd5f76386dfff01ca2986d50c120cf82926dff950c7d7b6ec833ea7558b64ec8f0dfe2e5070abf1da103

Download Submit
\ProgramData\grxmn.exe

Filesize
259KB

MD5
6bae06dd45e85bee5764debdeecdc596

SHA1
81f2a8abe8b3ec469b2396fd41c0f6bdddaa75a6

SHA256
643c449f8a0a8d8613cf2ca7c934cc33e0c998f33ce893b572053ecbbaf8307d

SHA512
91418ef8072c017485ce27b3d602ed06498033e7a116da600fd923fa85f6c58bd6b3caa4e84818615e6cf2d3d4c5b1c987425455126dd6cf3a59654086000bd7

Download Submit
memory/2356-1-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/2356-0-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/2356-14-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/2696-133-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads