44caliber | 43d3ef07e0f83898dc59adfab88642b9b048b2a3d10b91b760331dea21b00458

Analysis

max time kernel
298s
max time network
208s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
10/09/2026, 19:27

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General

Target
new update/Insidious.exe
Size 278KB
Sample260910-x6bvbaxvgv
SHA256 43d3ef07e0f83898dc59adfab88642b9b048b2a3d10b91b760331dea21b00458
MD5 60115edbc14eb733dcd9376471f4eb3b
SHA1 8c974018ee8583857f64b3f1ac60e69d56b8aa1c
SHA512 5e000f7475860fcb442a00815673a532c852b8db1db90469075046797800da44e11feb3ef5175b59c5987e8b5369fb77fc68dd6e59a41aa601018f1dd26a91a6
SSDEEP 6144:Zf+BLtABPDeHQfn54/T2kqqwyT0znD3fC79/x0aY+bhNus/l3ID0SGR:UHLr2kqqwyT0znrK1IDoR
TLSH
T1D0544B0027EC8B56F2FF5BB8D4B11265C3B1B466F97EDB4E6C44A4DD2922780D904BA3
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery 44caliber spyware stealer

Malware Config

Signatures

Family: 44Caliber
An open source infostealer written in C#.
stealer 44caliber
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 1 TTPs 2 IoCs

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

discovery

Internet Connection Discovery

T1016.001

flow	ioc
1	freegeoip.app
3	freegeoip.app

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	Insidious.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	Insidious.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2956	Insidious.exe
2956	Insidious.exe
2956	Insidious.exe
2956	Insidious.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2956	Insidious.exe

C:\Users\Admin\AppData\Local\Temp\new update\Insidious.exe
"C:\Users\Admin\AppData\Local\Temp\new update\Insidious.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2956

Network

MITRE ATT&CK Enterprise v16

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

Query Registry

T1012

System Information Discovery

T1082

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

Process.txt

Path C:\Users\Admin\AppData\Roaming\44\Process.txt
Size 990B
SHA256 a9f7e295b3f79f3ca3dae90722676b5bdb308a4795277dbe55741961e4140638
MD5 9a5ac022216f273b3b0e515d7acf50bd
SHA1 0ff12f8e89da27d716869dcb4551ae3d8c2c9930
SHA512 0932872bd116b0eeb34e0363d8d335636925b4f677214cdda34fc756d6d31f08bd367e07149f9257e130433861ac3fd8728799f36605ce775a1c2e1dae2fbd2d
TLSH
T140118EF032ABFC9E4B1BC8984D17600BB0A04C1106ED1C9A5B76D37960C45AEC2F82F0
MD5 SHA1 SHA512 TLSH

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Process.txt

Path C:\Users\Admin\AppData\Roaming\44\Process.txt
Size 1005B
SHA256 f920b5d8fb569687cdc72b870bc87b69f602bf6a88924ab985913282124aa92a
MD5 38d36276c93b9191ceb54780f0e85738
SHA1 dd506f62baa3c5c5be463dff65bf3c8953a2a6e6
SHA512 ff336038828e83db3ff32957381c7bd3c2d83d708477b2def93f269b52cb997bdce2fe0d1771e4ebc11cecee72259e01a41831e3fce5103375425bb604c70f68
TLSH
T1FB118EF032ABFC9E4B1BC8984D17600BB0A04C1106ED1C9A5B76D37960C45AEC2F82F0
MD5 SHA1 SHA512 TLSH

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Process.txt

Path C:\Users\Admin\AppData\Roaming\44\Process.txt
Size 1KB
SHA256 cbca535c949959450320b08843d56a60e7396dfea77fc175ee6115bdb871985f
MD5 20d95fc3e9210684c54e3aa7f4c47b27
SHA1 562318e3fd91afb6b39dd57f68003618be5ce8cc
SHA512 2f360202248092b0b315ed1a872709d53ebfe208dff899e923dfd893ca9647cb6b7c14744018485cf1f8d12e3b0e7337d1a023ce262320c322ab10e646a9c65b
TLSH
T1B921AFF032A7FC9E4B0BC8884D57A00AB0A44C250AAC2C9A1B76D33861C05ADC2B82F0
MD5 SHA1 SHA512 TLSH

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memory/2956-4-0x00007FFEC85C0000-0x00007FFEC8F64000-memory.dmp

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memory/2956-0-0x00000145EF480000-0x00000145EF4CC000-memory.dmp

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memory/2956-5-0x00007FFEC85C0000-0x00007FFEC8F64000-memory.dmp

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memory/2956-6-0x00007FFEC85C0000-0x00007FFEC8F64000-memory.dmp

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memory/2956-7-0x00007FFEC85C0000-0x00007FFEC8F64000-memory.dmp

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memory/2956-8-0x00007FFEC85C0000-0x00007FFEC8F64000-memory.dmp

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memory/2956-9-0x00007FFEC85C0000-0x00007FFEC8F64000-memory.dmp

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memory/2956-10-0x00007FFEC85C0000-0x00007FFEC8F64000-memory.dmp

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memory/2956-11-0x00007FFEC85C0000-0x00007FFEC8F64000-memory.dmp

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memory/2956-3-0x00007FFEC85C0000-0x00007FFEC8F64000-memory.dmp

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memory/2956-2-0x00007FFEC85C0000-0x00007FFEC8F64000-memory.dmp

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memory/2956-1-0x00007FFEC874F000-0x00007FFEC8750000-memory.dmp

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memory/2956-102-0x00007FFEC85C0000-0x00007FFEC8F64000-memory.dmp

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