44caliber | 9d4c0e742192d990d817e17aa3375658cb704ae49b81a0da85fe4b40fcd14465

General

Target

2ba940cf9a7a31aa0cfc73f74e3482e4.exe
Size

3.1MB
MD5

2ba940cf9a7a31aa0cfc73f74e3482e4
SHA1

2874764e864021db2985ff64ef8dd94d1957f3d8
SHA256

9d4c0e742192d990d817e17aa3375658cb704ae49b81a0da85fe4b40fcd14465
SHA512

443287c03e81ba5e0bcceef5a5381646579645342c618f86742297605a72537da4c07b86a8dfbf57d553b0f54351f44871f8cb4403179f051f8bcd2133ffcbfd
SSDEEP

98304:6Syum4Rwim9q8GN0lEulzh5kte61nqkELcQ0p+IQ+SeEIRt:oUR1m9q8GMlzh5kksqDLAp+IZST8

Score

10^/10

44caliber evasion spyware stealer themida trojan

Malware Config

Extracted

Family

44caliber

C2

https://discord.com/api/webhooks/867100509307142154/BMIycBNKWEMuXl991uUrUx-2sScTu3a04QCmMfOP8t-z9WEPTh8ZVkINTJPpUma2BdTD

Signatures

44Caliber
An open source infostealer written in C#.
stealer 44caliber
Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

2ba940cf9a7a31aa0cfc73f74e3482e4.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 2ba940cf9a7a31aa0cfc73f74e3482e4.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	2ba940cf9a7a31aa0cfc73f74e3482e4.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

2ba940cf9a7a31aa0cfc73f74e3482e4.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	2ba940cf9a7a31aa0cfc73f74e3482e4.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	2ba940cf9a7a31aa0cfc73f74e3482e4.exe

Reads user/profile data of web browsers 2 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

Themida packer 3 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/2348-23-0x0000000000170000-0x00000000009D4000-memory.dmp	themida
behavioral1/memory/2348-22-0x0000000000170000-0x00000000009D4000-memory.dmp	themida
behavioral1/memory/2348-91-0x0000000000170000-0x00000000009D4000-memory.dmp	themida

Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

2ba940cf9a7a31aa0cfc73f74e3482e4.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	2ba940cf9a7a31aa0cfc73f74e3482e4.exe

Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

4 freegeoip.app
5 freegeoip.app
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

2ba940cf9a7a31aa0cfc73f74e3482e4.exe

pid process

2348 2ba940cf9a7a31aa0cfc73f74e3482e4.exe

flow	ioc
4	freegeoip.app
5	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

Processes:

2ba940cf9a7a31aa0cfc73f74e3482e4.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	2ba940cf9a7a31aa0cfc73f74e3482e4.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2ba940cf9a7a31aa0cfc73f74e3482e4.exe

Modifies system certificate store 2 TTPs 4 IoCs

evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

Processes:

2ba940cf9a7a31aa0cfc73f74e3482e4.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\B1BC968BD4F49D622AA89A81F2150152A41D829C	2ba940cf9a7a31aa0cfc73f74e3482e4.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\B1BC968BD4F49D622AA89A81F2150152A41D829C\Blob = 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	2ba940cf9a7a31aa0cfc73f74e3482e4.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\B1BC968BD4F49D622AA89A81F2150152A41D829C\Blob = 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	2ba940cf9a7a31aa0cfc73f74e3482e4.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\B1BC968BD4F49D622AA89A81F2150152A41D829C\Blob = 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	2ba940cf9a7a31aa0cfc73f74e3482e4.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

2ba940cf9a7a31aa0cfc73f74e3482e4.exe

pid	process
2348	2ba940cf9a7a31aa0cfc73f74e3482e4.exe
2348	2ba940cf9a7a31aa0cfc73f74e3482e4.exe
2348	2ba940cf9a7a31aa0cfc73f74e3482e4.exe
2348	2ba940cf9a7a31aa0cfc73f74e3482e4.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

2ba940cf9a7a31aa0cfc73f74e3482e4.exe

description pid process

Token: SeDebugPrivilege 2348 2ba940cf9a7a31aa0cfc73f74e3482e4.exe

description	pid	process
Token: SeDebugPrivilege	2348	2ba940cf9a7a31aa0cfc73f74e3482e4.exe

C:\Users\Admin\AppData\Local\Temp\2ba940cf9a7a31aa0cfc73f74e3482e4.exe
"C:\Users\Admin\AppData\Local\Temp\2ba940cf9a7a31aa0cfc73f74e3482e4.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2348

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Subvert Trust Controls

1

T1553

Install Root Certificate

1

T1553.004

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

Query Registry

3

T1012

System Information Discovery

3

T1082

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2348-0-0x0000000000170000-0x00000000009D4000-memory.dmp

Filesize
8.4MB

Download
memory/2348-1-0x0000000075700000-0x0000000075810000-memory.dmp

Filesize
1.1MB

Download
memory/2348-2-0x00000000756B0000-0x00000000756F7000-memory.dmp

Filesize
284KB

Download
memory/2348-3-0x0000000075700000-0x0000000075810000-memory.dmp

Filesize
1.1MB

Download
memory/2348-4-0x0000000075700000-0x0000000075810000-memory.dmp

Filesize
1.1MB

Download
memory/2348-5-0x0000000075700000-0x0000000075810000-memory.dmp

Filesize
1.1MB

Download
memory/2348-6-0x0000000075700000-0x0000000075810000-memory.dmp

Filesize
1.1MB

Download
memory/2348-10-0x0000000075700000-0x0000000075810000-memory.dmp

Filesize
1.1MB

Download
memory/2348-14-0x0000000075700000-0x0000000075810000-memory.dmp

Filesize
1.1MB

Download
memory/2348-15-0x0000000075700000-0x0000000075810000-memory.dmp

Filesize
1.1MB

Download
memory/2348-17-0x0000000075700000-0x0000000075810000-memory.dmp

Filesize
1.1MB

Download
memory/2348-20-0x0000000077970000-0x0000000077972000-memory.dmp

Filesize
8KB

Download
memory/2348-19-0x0000000075700000-0x0000000075810000-memory.dmp

Filesize
1.1MB

Download
memory/2348-23-0x0000000000170000-0x00000000009D4000-memory.dmp

Filesize
8.4MB

Download
memory/2348-22-0x0000000000170000-0x00000000009D4000-memory.dmp

Filesize
8.4MB

Download
memory/2348-21-0x0000000074980000-0x000000007506E000-memory.dmp

Filesize
6.9MB

Download
memory/2348-18-0x00000000756B0000-0x00000000756F7000-memory.dmp

Filesize
284KB

Download
memory/2348-16-0x00000000756B0000-0x00000000756F7000-memory.dmp

Filesize
284KB

Download
memory/2348-24-0x0000000005990000-0x00000000059D0000-memory.dmp

Filesize
256KB

Download
memory/2348-13-0x0000000075700000-0x0000000075810000-memory.dmp

Filesize
1.1MB

Download
memory/2348-12-0x00000000756B0000-0x00000000756F7000-memory.dmp

Filesize
284KB

Download
memory/2348-8-0x0000000075700000-0x0000000075810000-memory.dmp

Filesize
1.1MB

Download
memory/2348-91-0x0000000000170000-0x00000000009D4000-memory.dmp

Filesize
8.4MB

Download
memory/2348-92-0x0000000075700000-0x0000000075810000-memory.dmp

Filesize
1.1MB

Download
memory/2348-93-0x00000000756B0000-0x00000000756F7000-memory.dmp

Filesize
284KB

Download
memory/2348-94-0x0000000074980000-0x000000007506E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads