44caliber | 9260b031bc5e822b632335447698e4a0d4df98f2be89c750b16e6567a1c852b0

General

Target

9260b031bc5e822b632335447698e4a0d4df98f2be89c750b16e6567a1c852b0.exe
Size

274KB
MD5

b48e2f9b558ecdaaeaeef4016d44ae7d
SHA1

88780ab2c40ebc2cb1d28f960e6bbc73159938f4
SHA256

9260b031bc5e822b632335447698e4a0d4df98f2be89c750b16e6567a1c852b0
SHA512

2827d7a391efe484f9b53a9f542f2ed3cc628c455d8206e5d6cdf7cb37ac38d1df0d2c9c57c9e15ab3352b7afc7e9d57a64e9094b8f5f8b7e08b1dbbba250307
SSDEEP

6144:Wf+BLtABPDkkZ68Dm6pwyUruui8XafTyClI1D0vDx+:xozqyUruuzf1DAx+

Score

10^/10

44caliber discovery spyware stealer

Malware Config

Extracted

Family

44caliber

C2

https://discord.com/api/webhooks/1338494455816130602/RfPMucy7qNgnF1KO1MI5iOATLOqPdaYE1pn3HhuPCtXjqRXs3t1NFhCJsYBUYOc2mSD5

Signatures

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

Downloads MZ/PE file 1 IoCs

flow	pid	Process
50	4924	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
2	freegeoip.app
7	freegeoip.app

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
4344	MicrosoftEdgeUpdate.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	9260b031bc5e822b632335447698e4a0d4df98f2be89c750b16e6567a1c852b0.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	9260b031bc5e822b632335447698e4a0d4df98f2be89c750b16e6567a1c852b0.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1352	9260b031bc5e822b632335447698e4a0d4df98f2be89c750b16e6567a1c852b0.exe
1352	9260b031bc5e822b632335447698e4a0d4df98f2be89c750b16e6567a1c852b0.exe
1352	9260b031bc5e822b632335447698e4a0d4df98f2be89c750b16e6567a1c852b0.exe
1352	9260b031bc5e822b632335447698e4a0d4df98f2be89c750b16e6567a1c852b0.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1352	9260b031bc5e822b632335447698e4a0d4df98f2be89c750b16e6567a1c852b0.exe

C:\Users\Admin\AppData\Local\Temp\9260b031bc5e822b632335447698e4a0d4df98f2be89c750b16e6567a1c852b0.exe
"C:\Users\Admin\AppData\Local\Temp\9260b031bc5e822b632335447698e4a0d4df98f2be89c750b16e6567a1c852b0.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1352

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSI4IiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDU5MjEiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODE5ODA3NzAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MTA2MzExNTQzIi8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:4344

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\44\Process.txt

Filesize
1KB

MD5
ffe8f530db5a3f5c768057630b29b1be

SHA1
2f86edf04d9743d17ba3f4c23f58c888544625ef

SHA256
cecf8f390b7118c3980cb95cf6763e8add5ff692912ffdf300333ea2854745f9

SHA512
bb750399020dd54806ac38e661bc91d4578e751af23e0675f184ec5722695835ee2602927e4f2c1cddf1889e8b58cd7fe090eb501193d533c25cf1df951fcada

Download Submit
C:\Users\Admin\AppData\Local\44\Process.txt

Filesize
208B

MD5
f57f6002dfb6bd3a701fdc8e7c734f8d

SHA1
3245222fe5214a6441d5ffded47174f36ce55838

SHA256
f83ee82832725b2bb8ec6e47f487491b1ab9c2719faed2c9a349c1cf14b9c4d6

SHA512
c52b7c3d69362387aa78a03371db9ba61cf9210e3a8ac6bfa4545ddc3a60bd1d12db51439afc3e2fadada94c474ed4bfed7dfc401c97ad30f4012ef963f3d5ab

Download Submit
C:\Users\Admin\AppData\Local\44\Process.txt

Filesize
743B

MD5
a6ce1a2ed4cabb258454cbeb1991dd9b

SHA1
fc6c0e2a590d4ffcf6c63ac2a002a2b30932d748

SHA256
25e96359162d5ca7f1d37c2cdbbde21f82150c35b04a96b7e046ac183fd83639

SHA512
6be1a4fe946b333691b7692dda46aa6164edaa0fbf3e235b3b996f93fd0cf16babe9566de1d1413b52a3337123022b73e9dc77814b619c67f69041db1c6feafe

Download Submit
memory/1352-0-0x00007FF80C273000-0x00007FF80C275000-memory.dmp

Filesize
8KB

Download
memory/1352-1-0x0000022136010000-0x000002213605A000-memory.dmp

Filesize
296KB

Download
memory/1352-32-0x00007FF80C270000-0x00007FF80CD31000-memory.dmp

Filesize
10.8MB

Download
memory/1352-123-0x00007FF80C270000-0x00007FF80CD31000-memory.dmp

Filesize
10.8MB

Download

Analysis

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