7a02eaf5031dd5d10d7335e9c3bbdc5180df18bde8096a6d850bc5479e10c4e8

General

Target

7a02eaf5031dd5d10d7335e9c3bbdc5180df18bde8096a6d850bc5479e10c4e8.exe
Size

935KB
MD5

57f9bb6f6210f8330b5b0eeab8e9b9a4
SHA1

2ee1103a09c57cc2caf7ea9e4f5b309b0db0f129
SHA256

7a02eaf5031dd5d10d7335e9c3bbdc5180df18bde8096a6d850bc5479e10c4e8
SHA512

2eed2a53aa6eb185b1f069b5a8f05deb1914d1be0902ee89ff2a1391bcbace2e4afc446eeea196a555f46b6d8e9e22852761c5a405594f1644094abb947db62f
SSDEEP

12288:8uPUTLYcAaUMhUhLupXshh1PEd5hOo1cNM3iSjJpf5HGQ:8uPmLDUMihIXCE5roM3iSjz5H1

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1292	Isass.exe

Loads dropped DLL 2 IoCs

pid	Process
2408	7a02eaf5031dd5d10d7335e9c3bbdc5180df18bde8096a6d850bc5479e10c4e8.exe
2408	7a02eaf5031dd5d10d7335e9c3bbdc5180df18bde8096a6d850bc5479e10c4e8.exe

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

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\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Isass.exe = "C:\\Users\\Public\\Microsoft Build\\Isass.exe"	7a02eaf5031dd5d10d7335e9c3bbdc5180df18bde8096a6d850bc5479e10c4e8.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\Isass.exe = "C:\\Users\\Public\\Microsoft Build\\Isass.exe"	7a02eaf5031dd5d10d7335e9c3bbdc5180df18bde8096a6d850bc5479e10c4e8.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	7a02eaf5031dd5d10d7335e9c3bbdc5180df18bde8096a6d850bc5479e10c4e8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Isass.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2408	7a02eaf5031dd5d10d7335e9c3bbdc5180df18bde8096a6d850bc5479e10c4e8.exe
1292	Isass.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2408 wrote to memory of 1292	2408	7a02eaf5031dd5d10d7335e9c3bbdc5180df18bde8096a6d850bc5479e10c4e8.exe	30
PID 2408 wrote to memory of 1292	2408	7a02eaf5031dd5d10d7335e9c3bbdc5180df18bde8096a6d850bc5479e10c4e8.exe	30
PID 2408 wrote to memory of 1292	2408	7a02eaf5031dd5d10d7335e9c3bbdc5180df18bde8096a6d850bc5479e10c4e8.exe	30
PID 2408 wrote to memory of 1292	2408	7a02eaf5031dd5d10d7335e9c3bbdc5180df18bde8096a6d850bc5479e10c4e8.exe	30

C:\Users\Admin\AppData\Local\Temp\7a02eaf5031dd5d10d7335e9c3bbdc5180df18bde8096a6d850bc5479e10c4e8.exe
"C:\Users\Admin\AppData\Local\Temp\7a02eaf5031dd5d10d7335e9c3bbdc5180df18bde8096a6d850bc5479e10c4e8.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2408
- 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:1292

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

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

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

\Users\Public\Microsoft Build\Isass.exe

Filesize
935KB

MD5
57f9bb6f6210f8330b5b0eeab8e9b9a4

SHA1
2ee1103a09c57cc2caf7ea9e4f5b309b0db0f129

SHA256
7a02eaf5031dd5d10d7335e9c3bbdc5180df18bde8096a6d850bc5479e10c4e8

SHA512
2eed2a53aa6eb185b1f069b5a8f05deb1914d1be0902ee89ff2a1391bcbace2e4afc446eeea196a555f46b6d8e9e22852761c5a405594f1644094abb947db62f

Download Submit
memory/1292-21-0x0000000000400000-0x00000000016A3000-memory.dmp

Filesize
18.6MB

Download
memory/1292-34-0x0000000000400000-0x00000000016A3000-memory.dmp

Filesize
18.6MB

Download
memory/1292-49-0x0000000000400000-0x00000000016A3000-memory.dmp

Filesize
18.6MB

Download
memory/1292-13-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download
memory/1292-12-0x0000000000400000-0x00000000016A3000-memory.dmp

Filesize
18.6MB

Download
memory/1292-16-0x0000000000400000-0x00000000016A3000-memory.dmp

Filesize
18.6MB

Download
memory/1292-9-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download
memory/1292-25-0x0000000000400000-0x00000000016A3000-memory.dmp

Filesize
18.6MB

Download
memory/1292-17-0x0000000000400000-0x00000000016A3000-memory.dmp

Filesize
18.6MB

Download
memory/1292-33-0x0000000000400000-0x00000000016A3000-memory.dmp

Filesize
18.6MB

Download
memory/1292-48-0x0000000000400000-0x00000000016A3000-memory.dmp

Filesize
18.6MB

Download
memory/1292-40-0x0000000000400000-0x00000000016A3000-memory.dmp

Filesize
18.6MB

Download
memory/1292-41-0x0000000000400000-0x00000000016A3000-memory.dmp

Filesize
18.6MB

Download
memory/2408-0-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download
memory/2408-11-0x0000000000400000-0x00000000016A3000-memory.dmp

Filesize
18.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads