44caliber | 830fdb947aa60a491d22c8f698e9531fdd651f76cecafd3350d408442db4c59e

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
08/08/2026, 23:17

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General

Target
830fdb947aa60a491d22c8f698e9531fdd651f76cecafd3350d408442db4c59e.exe
Size 465KB
Sample260808-29sz8aem91
SHA256 830fdb947aa60a491d22c8f698e9531fdd651f76cecafd3350d408442db4c59e
MD5 ff9f1ff45dfc61d2ad57f79e89491848
SHA1 4a12b3d015ffb3029a9990fe874956641d9e9b44
SHA512 69f9f397c64c3f4a58b57708fb82d264b8a89542085c0b12da08b922b5260c1e4561bed1871eb890884d5ca2978c1b086681d463cefe31d448f57944bd5bee56
SSDEEP 6144:C9/aDbbiBWWOpH/f+BLtABPDsthn9pXsBbwopWVo0kjafTiElI1D0REaw:9WOpH4tlwRwopOo00p1DRaw
TLSH
T114A4D58A1E9446B7D3AEE67494B3333D837BA8397BA7DF4D984A3D8917323488500753
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery execution 44caliber xworm persistence privilege_escalation rat spyware stealer trojan

Malware Config

Extracted

Family

xworm

Version

XWorm V5.6

ov1j9h5mhk.localto.net:4811

Attributes

Install_directory
%Public%
install_file
USB.exe

Extracted

Family

44caliber

https://discord.com/api/webhooks/1529155980405899375/jgpGJH-0z5WL1zBCJQo_q9gLgK1B8QLLkvo_AwKcMUvUKICyfFHEAc6bX364j0YsfP7s

Signatures

Family: 44Caliber
An open source infostealer written in C#.
stealer 44caliber
Family: Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm

Detect Xworm Payload 3 IoCs

resource	yara_rule
behavioral1/files/0x000a0000000004e9-4.dat	family_xworm
behavioral1/memory/2760-22-0x0000000000400000-0x000000000047C000-memory.dmp	family_xworm
behavioral1/memory/4320-23-0x0000000000A90000-0x0000000000AC2000-memory.dmp	family_xworm

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
3412	powershell.exe
5060	powershell.exe
4388	powershell.exe
4748	powershell.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-204488895-2999877624-296153668-1000\Control Panel\International\Geo\Nation	830fdb947aa60a491d22c8f698e9531fdd651f76cecafd3350d408442db4c59e.exe
Key value queried	\REGISTRY\USER\S-1-5-21-204488895-2999877624-296153668-1000\Control Panel\International\Geo\Nation	XXXXXXXXXXXXXXX.exe

Creates a file in the Startup directory 1 TTPs 2 IoCs

A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

persistence privilege_escalation

Registry Run Keys / Startup Folder

T1547.001

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	XXXXXXXXXXXXXXX.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	XXXXXXXXXXXXXXX.exe

Executes dropped EXE 4 IoCs

pid	Process
4320	XXXXXXXXXXXXXXX.exe
4428	Insidious.exe
2004	svchost
2400	svchost

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

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-1-5-21-204488895-2999877624-296153668-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Public\\svchost"	XXXXXXXXXXXXXXX.exe

Looks up external IP address via web service 1 TTPs 3 IoCs

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

discovery

Internet Connection Discovery

T1016.001

flow	ioc
5	freegeoip.app
6	freegeoip.app
13	ip-api.com

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 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	830fdb947aa60a491d22c8f698e9531fdd651f76cecafd3350d408442db4c59e.exe

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

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
1956	schtasks.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
4428	Insidious.exe
4428	Insidious.exe
4428	Insidious.exe
4428	Insidious.exe
4388	powershell.exe
4388	powershell.exe
4748	powershell.exe
4748	powershell.exe
3412	powershell.exe
3412	powershell.exe
5060	powershell.exe
5060	powershell.exe
4320	XXXXXXXXXXXXXXX.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	4320	XXXXXXXXXXXXXXX.exe
Token: SeDebugPrivilege	4428	Insidious.exe
Token: SeDebugPrivilege	4388	powershell.exe
Token: SeDebugPrivilege	4748	powershell.exe
Token: SeDebugPrivilege	3412	powershell.exe
Token: SeDebugPrivilege	5060	powershell.exe
Token: SeDebugPrivilege	4320	XXXXXXXXXXXXXXX.exe
Token: SeDebugPrivilege	2004	svchost
Token: SeDebugPrivilege	2400	svchost

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4320	XXXXXXXXXXXXXXX.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2760 wrote to memory of 4320	2760	830fdb947aa60a491d22c8f698e9531fdd651f76cecafd3350d408442db4c59e.exe	86
PID 2760 wrote to memory of 4428	2760	830fdb947aa60a491d22c8f698e9531fdd651f76cecafd3350d408442db4c59e.exe	87
PID 4320 wrote to memory of 4388	4320	XXXXXXXXXXXXXXX.exe	98
PID 4320 wrote to memory of 4748	4320	XXXXXXXXXXXXXXX.exe	100
PID 4320 wrote to memory of 3412	4320	XXXXXXXXXXXXXXX.exe	102
PID 4320 wrote to memory of 5060	4320	XXXXXXXXXXXXXXX.exe	104
PID 4320 wrote to memory of 1956	4320	XXXXXXXXXXXXXXX.exe	106

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\830fdb947aa60a491d22c8f698e9531fdd651f76cecafd3350d408442db4c59e.exe
"C:\Users\Admin\AppData\Local\Temp\830fdb947aa60a491d22c8f698e9531fdd651f76cecafd3350d408442db4c59e.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2760
- C:\Users\Admin\AppData\Local\Temp\XXXXXXXXXXXXXXX.exe
  "C:\Users\Admin\AppData\Local\Temp\XXXXXXXXXXXXXXX.exe"
  2⤵
  - Checks computer location settings
  - Creates a file in the Startup directory
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4320
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\XXXXXXXXXXXXXXX.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4388
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XXXXXXXXXXXXXXX.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4748
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Public\svchost'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3412
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:5060
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\Users\Public\svchost"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:1956
- C:\Users\Admin\AppData\Local\Temp\Insidious.exe
  "C:\Users\Admin\AppData\Local\Temp\Insidious.exe"
  2⤵
  - Executes dropped EXE
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4428

C:\Users\Public\svchost
C:\Users\Public\svchost
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2004

C:\Users\Public\svchost
C:\Users\Public\svchost
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2400

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

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 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

Replay Monitor

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Downloads

powershell.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
Size 2KB
SHA256 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
MD5 d85ba6ff808d9e5444a4b369f5bc2730
SHA1 31aa9d96590fff6981b315e0b391b575e4c0804a
SHA512 8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249
TLSH
T1CE51EE323375B1E888167F071E681A8053BF4355EA94AF1CB698621ED93641B9F222F3
MD5 SHA1 SHA512 TLSH

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svchost.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\svchost.log
Size 654B
SHA256 e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced
MD5 2ff39f6c7249774be85fd60a8f9a245e
SHA1 684ff36b31aedc1e587c8496c02722c6698c1c4e
SHA512 1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1
TLSH
T1D9F0DD242221E1C489127F111C0D2A4452BF4797B760EE0C7554529FD8312275F203E7
MD5 SHA1 SHA512 TLSH

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 9d031d7193142f7120476fe181006807652ca4a8caec8fbab3f4e4f86e451049
MD5 f4d10dbf9ff1d91226db0d9ce144033c
SHA1 1fab5ab3cf8b1b48a146c3b83fad67c44c7bd791
SHA512 2b2fed18f7ac2e15f990aaab9fc814f040bd387cbf3634b8d2cf22d24bb8fe8c87e88f640190dce2362edcb33cc3296bb76ed462f847cfac8eaab6456000f1d8
TLSH
T12B112223F38C8920CC96163A509DAC5172B586CB81EEDF9F7FC0D210A1BF584CB61294
MD5 SHA1 SHA512 TLSH

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 55b1d8021c4eb4c3c0d75e3ed7a4eb30cd0123e3d69f32eeb596fe4ffec05abf
MD5 22310ad6749d8cc38284aa616efcd100
SHA1 440ef4a0a53bfa7c83fe84326a1dff4326dcb515
SHA512 2ef08e2ee15bb86695fe0c10533014ffed76ececc6e579d299d3365fafb7627f53e32e600bb6d872b9f58aca94f8cb7e1e94cdfd14777527f7f0aa019d9c6def
TLSH
T1DD112223F38D8920CC965539509DAC5172B586CB81AFDE9F7FC0D210A1BF584CB61194
MD5 SHA1 SHA512 TLSH

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 d6fa39eab7ee36f44dc3f9f2839d098433db95c1eba924e4bcf4e5c0d268d961
MD5 15dde0683cd1ca19785d7262f554ba93
SHA1 d039c577e438546d10ac64837b05da480d06bf69
SHA512 57c0e1b87bc1c136f0d39f3ce64bb8f8274a0491e4ca6e45e5c7f9070aa9d9370c6f590ce37cd600b252df2638d870205249a514c43245ca7ed49017024a4672
TLSH
T1B4112223F38C8960CC961539509DAC5172B586CB81AFDE9F7FC0C210A1BF584CB61194
MD5 SHA1 SHA512 TLSH

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Insidious.exe

Path C:\Users\Admin\AppData\Local\Temp\Insidious.exe
Size 274KB
SHA256 ceacc9b51d20983cf6fe60d38e89996f42ca4faf2338152f853110879f9888f6
MD5 ffa97cf4de6d2179b3a181521a44769b
SHA1 99b7062b69c89639d8fddcb1d8ca607b8b6c9f7d
SHA512 9813a07a43be8306195e44671e79fcdabbc2f5f5b94053e6e87329bb32be8d20d4f4f4ed69e7c449264d3e0771bf5748c4c4f3501c2f3fe22cbdd71dced9fbef
SSDEEP 6144:qf+BLtABPDsthn9pXsBbwopWVo0kjafTiElI1D0REa:xtlwRwopOo00p1DRa
TLSH
T1DC544C0027EC8B56E2FF47B9E4B05261C3B1B466B83EDB4E6C4461DE2923780D955BB3
MD5 SHA1 SHA512 SSDEEP TLSH

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XXXXXXXXXXXXXXX.exe

Path C:\Users\Admin\AppData\Local\Temp\XXXXXXXXXXXXXXX.exe
Size 180KB
SHA256 50f744a723dcf3a8e9fcbb2522fd9a0d9f71201242c5a1cb1b8c7724c7970456
MD5 23c99067333298047f764296c24507ec
SHA1 688191c62c2328f4166fa071581aa225ceb6c7d3
SHA512 c281247041b06298b2b9f4fcb97f2b88f007075d8f98cc8bc4ae125f13f8498b438a39e9caa1e0cfdd8fde44e31a4c69c6b4ba63fbecd311bae322f5fc2333ea
SSDEEP 1536:Wf8dhotWbhx5JnzrmJ6v64bD363NfJO26HjQwFdoO2WsThOAqQE9:W0dCWN4wS4bD34JObdoO2WShOpQE9
TLSH
T10304D3DB2E9406B7D7ADFA7008B3733D872FA93E6BC38E4E948B2D4A573254C8940155
MD5 SHA1 SHA512 SSDEEP TLSH

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__PSScriptPolicyTest_jv500ksz.30l.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_jv500ksz.30l.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

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Process.txt

Path C:\Users\Admin\AppData\Roaming\44\Process.txt
Size 1KB
SHA256 66c25d03f89cf9fb70a4a91bde516608d29fea9799ec856af67299b4e394a183
MD5 43a5d659055768f65132ad5f2cb81370
SHA1 62ba6502e241a0862fbd7c13e9ecb02c23326270
SHA512 cab9355c64ab2443f10bbd965b463db6e52b4f6e7b1f3eab430ed7cfc057225ef18830b53f7d463c8caa71ee079f7d0f1a607e1e86e55f70ea68de44b629a717
TLSH
T14221B2F032A2FC8D4B0BC9944DA3A58271A45C1106EC2C9C1B3AD77871D457CC2F82F0
MD5 SHA1 SHA512 TLSH

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Process.txt

Path C:\Users\Admin\AppData\Roaming\44\Process.txt
Size 730B
SHA256 90ee7cf458caf8587b45906125c69dc96f98f29110ba4b457f06137c292ee8cd
MD5 0d654e0c073969b13357a07ba619ccc5
SHA1 826eca5113a88b67aee70fb73b91f67bffbb09f6
SHA512 f1ecf6f165ddc9428c70ef8bda5c03d208c1d3f1a576b4b24a4991f2bb3c92fe766c2b6acb17aa1827c97ac3f166430ab3974e2bbf6df4417d7cce537020d4b2
TLSH
T1A601C2F076A2FC8E8B0BC4A44D635582B2950C201AEC2D9C0B36EBA830D413CC2B92F0
MD5 SHA1 SHA512 TLSH

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memory/2760-22-0x0000000000400000-0x000000000047C000-memory.dmp

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memory/4320-132-0x000000001B810000-0x000000001B820000-memory.dmp

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memory/4320-133-0x000000001B810000-0x000000001B820000-memory.dmp

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memory/4320-23-0x0000000000A90000-0x0000000000AC2000-memory.dmp

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memory/4388-134-0x00000213DDBC0000-0x00000213DDBE2000-memory.dmp

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memory/4428-25-0x0000021DBE640000-0x0000021DBE650000-memory.dmp

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memory/4428-24-0x0000021DBC9A0000-0x0000021DBC9EA000-memory.dmp

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