44caliber | fe71bbfb6ea7f2373565eaccf6dc11ad16bf1f067da9bd22424e380fc14ff990

Analysis

max time kernel
95s
max time network
238s
platform
windows10-2004_x64
resource
win10v2004-20250207-en
resource tags

arch:x64arch:x86image:win10v2004-20250207-enlocale:en-usos:windows10-2004-x64system
submitted
11/02/2025, 10:14

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General

Target

Insidious.exe
Size

303KB
MD5

7505682a058f45df956a6cdaa930af95
SHA1

dcf5b4a3de803af8361c85067605bd71d40035ba
SHA256

fe71bbfb6ea7f2373565eaccf6dc11ad16bf1f067da9bd22424e380fc14ff990
SHA512

c4f9b38610ed8a0503d2aa55ce4241537c75ee88b72abda1b3a87c911419c71cbe2a84a203c7624e24a453b1f975937c2360d7136535298499db778402c599d0
SSDEEP

6144:tRlT6MDdbICydeBV9suqPmlF62y6jmA1D0jCc:tRT4uqPmH6DY1DJc

Score

10^/10

44caliber discovery spyware stealer

Malware Config

Extracted

Family

44caliber

https://discord.com/api/webhooks/1338073007217840141/eDeh4wwBxq9r_iLg9SoCkKAfiG9U5xZFSL0XqRVIuzLG3ldF3nrWp9gggQzPfh9skV6-

Signatures

44Caliber
An open source infostealer written in C#.
stealer 44caliber
44Caliber family
44caliber

Downloads MZ/PE file 1 IoCs

flow	pid	Process
48	4944	Process not Found

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
1	freegeoip.app
2	freegeoip.app

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\system32\spool\PRINTERS\PPuukmkl8wcrzmwmt64qtzu8zrb.TMP	printfilterpipelinesvc.exe

System Location Discovery: System Language Discovery 1 TTPs 1 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	MicrosoftEdgeUpdate.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
760	MicrosoftEdgeUpdate.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2248	Insidious.exe
2248	Insidious.exe
2248	Insidious.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2248	Insidious.exe

C:\Users\Admin\AppData\Local\Temp\Insidious.exe
"C:\Users\Admin\AppData\Local\Temp\Insidious.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2248

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
1⤵
PID:3860

C:\Windows\system32\printfilterpipelinesvc.exe
C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
1⤵
- Drops file in System32 directory
PID:772

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTgiPz48cmVxdWVzdCBwcm90b2NvbD0iMy4wIiB1cGRhdGVyPSJPbWFoYSIgdXBkYXRlcnZlcnNpb249IjEuMy4xOTUuNDMiIHNoZWxsX3ZlcnNpb249IjEuMy4xOTUuNDMiIGlzbWFjaGluZT0iMSIgc2Vzc2lvbmlkPSJ7NkMxQzc3QTEtMUZCQy00MTg3LUE5NTgtOTVDMDhDMkY0OUI3fSIgdXNlcmlkPSJ7NzQ2QTk2RkYtNDdCMi00NDJCLUJDQkQtRjQ5NTVENjQzOUQyfSIgaW5zdGFsbHNvdXJjZT0ibGltaXRlZCIgcmVxdWVzdGlkPSJ7RTIyMEU1NDEtNTY2Ni00NTYzLUIyRDctMkQ0NzE5RDA1RTAzfSIgZGVkdXA9ImNyIiBkb21haW5qb2luZWQ9IjAiPjxodyBsb2dpY2FsX2NwdXM9IjIiIHBoeXNtZW1vcnk9IjQiIGRpc2tfdHlwZT0iMiIgc3NlPSIxIiBzc2UyPSIxIiBzc2UzPSIxIiBzc3NlMz0iMSIgc3NlNDE9IjEiIHNzZTQyPSIxIiBhdng9IjEiLz48b3MgcGxhdGZvcm09IndpbiIgdmVyc2lvbj0iMTAuMC4xOTA0MS4xMjg4IiBzcD0iIiBhcmNoPSJ4NjQiIHByb2R1Y3RfdHlwZT0iNDgiIGlzX3dpcD0iMCIgaXNfaW5fbG9ja2Rvd25fbW9kZT0iMCIvPjxvZW0gcHJvZHVjdF9tYW51ZmFjdHVyZXI9IiIgcHJvZHVjdF9uYW1lPSIiLz48ZXhwIGV0YWc9IiZxdW90O0UreGJBejZZNnNVMTI4OWJTNnFsNFZSTGJramZCVUdUTUpzanJIcjQ0aUk9JnF1b3Q7Ii8-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIzIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDU5MjEiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODE5ODA3NzAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MTgyMTgzNjEyIi8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:760

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/2248-0-0x00007FF951CE3000-0x00007FF951CE5000-memory.dmp

Filesize
8KB

Download
memory/2248-1-0x000001E2BBF00000-0x000001E2BBF52000-memory.dmp

Filesize
328KB

Download
memory/2248-11-0x00007FF951CE0000-0x00007FF9527A1000-memory.dmp

Filesize
10.8MB

Download
memory/2248-33-0x00007FF951CE0000-0x00007FF9527A1000-memory.dmp

Filesize
10.8MB

Download