24abfc16d6b92a09adba348429b1bcf37815b4ee8522293f4f893a4605dcb95f

General

Target

24abfc16d6b92a09adba348429b1bcf37815b4ee8522293f4f893a4605dcb95fN.exe
Size

231KB
MD5

362eb56048c54c7e94f49071c3110d80
SHA1

50b11e0c6bbf1b4a0d03fa190265efe6594fe6a1
SHA256

24abfc16d6b92a09adba348429b1bcf37815b4ee8522293f4f893a4605dcb95f
SHA512

5047bffdb1cb73cfbbc931ca6afbe0ff69bf1c54a2a0c0ec7cb53b467d7a1e73a892529315a5cfd2527faec2ab7e98e3bfccfc27077f07c208df73a209dbf5bb
SSDEEP

3072:SPUHpiKT2t2UHIu05W7SAFJJOUD9cckiKop97f3r8n9t9Ygntw6:/rTfUHeeSKOS9ccFKk3Y9t9YZ6

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3848	Isass.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

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Isass.exe = "C:\\Users\\Public\\Microsoft Build\\Isass.exe"	24abfc16d6b92a09adba348429b1bcf37815b4ee8522293f4f893a4605dcb95fN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Isass.exe = "C:\\Users\\Public\\Microsoft Build\\Isass.exe"	24abfc16d6b92a09adba348429b1bcf37815b4ee8522293f4f893a4605dcb95fN.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	24abfc16d6b92a09adba348429b1bcf37815b4ee8522293f4f893a4605dcb95fN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Isass.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1180	24abfc16d6b92a09adba348429b1bcf37815b4ee8522293f4f893a4605dcb95fN.exe
1180	24abfc16d6b92a09adba348429b1bcf37815b4ee8522293f4f893a4605dcb95fN.exe
3848	Isass.exe
3848	Isass.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1180 wrote to memory of 3848	1180	24abfc16d6b92a09adba348429b1bcf37815b4ee8522293f4f893a4605dcb95fN.exe	82
PID 1180 wrote to memory of 3848	1180	24abfc16d6b92a09adba348429b1bcf37815b4ee8522293f4f893a4605dcb95fN.exe	82
PID 1180 wrote to memory of 3848	1180	24abfc16d6b92a09adba348429b1bcf37815b4ee8522293f4f893a4605dcb95fN.exe	82

C:\Users\Admin\AppData\Local\Temp\24abfc16d6b92a09adba348429b1bcf37815b4ee8522293f4f893a4605dcb95fN.exe
"C:\Users\Admin\AppData\Local\Temp\24abfc16d6b92a09adba348429b1bcf37815b4ee8522293f4f893a4605dcb95fN.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1180
- C:\Users\Public\Microsoft Build\Isass.exe
  "C:\Users\Public\Microsoft Build\Isass.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:3848

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\OneDrive\18.151.0729.0013\FileCoAuth.exe

Filesize
693KB

MD5
17a27234b1eda2869cf16707c1812e04

SHA1
d4c91f5254302d3b98027e0990ed8c252f82ee16

SHA256
04c79f383c8f310e7330f33994ec0623efef970ac82df7ed7e65e860ef1178fc

SHA512
73d5433635277be3ebb3b1baa507f652a093df55ac45f4357bf461a8b434b7a1d6b31a8193ed3c851093c32633050f8262d0347ae2e191588bac7977a9d53c47

Download Submit
C:\Users\Public\Microsoft Build\Isass.exe

Filesize
231KB

MD5
362eb56048c54c7e94f49071c3110d80

SHA1
50b11e0c6bbf1b4a0d03fa190265efe6594fe6a1

SHA256
24abfc16d6b92a09adba348429b1bcf37815b4ee8522293f4f893a4605dcb95f

SHA512
5047bffdb1cb73cfbbc931ca6afbe0ff69bf1c54a2a0c0ec7cb53b467d7a1e73a892529315a5cfd2527faec2ab7e98e3bfccfc27077f07c208df73a209dbf5bb

Download Submit
memory/1180-6-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/1180-3-0x0000000001AA0000-0x0000000001AA1000-memory.dmp

Filesize
4KB

Download
memory/1180-1-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/3848-13-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/3848-19-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/3848-10-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/3848-7-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/3848-14-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/3848-8-0x0000000001A80000-0x0000000001A81000-memory.dmp

Filesize
4KB

Download
memory/3848-18-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/3848-9-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/3848-24-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/3848-28-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/3848-34-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/3848-35-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/3848-42-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/3848-43-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads