e1e79a114929928f2dae6a3a7c16a7a4a9f9196a9885105ae0f422ef2acdea02

General

Target

e1e79a114929928f2dae6a3a7c16a7a4a9f9196a9885105ae0f422ef2acdea02.exe
Size

356KB
MD5

79a554823940bc8c9531f604feeb47e7
SHA1

f1890f39483b3f44a0cecbb4bfd47832f0239409
SHA256

e1e79a114929928f2dae6a3a7c16a7a4a9f9196a9885105ae0f422ef2acdea02
SHA512

ab75616d1b9d93abeda388caece14bea73747923904582000aec049575e2fc3f376a48055b319470e92536ecec55ac3b249ddfab8556306e8e0ab259e51197f7
SSDEEP

6144:dlVvgjhQMWekPQRacktlIgAm75bOvGXbPUMp3l8gUAqh+urdA:dl2OMWbQRCjbM6Bq7A

Score

10^/10

evasion persistence spyware stealer

Malware Config

Signatures

Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	e1e79a114929928f2dae6a3a7c16a7a4a9f9196a9885105ae0f422ef2acdea02.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	byzas.exe

Executes dropped EXE 1 IoCs

pid	Process
1104	byzas.exe

Loads dropped DLL 2 IoCs

pid	Process
1196	e1e79a114929928f2dae6a3a7c16a7a4a9f9196a9885105ae0f422ef2acdea02.exe
1196	e1e79a114929928f2dae6a3a7c16a7a4a9f9196a9885105ae0f422ef2acdea02.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
T1081

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\byzas = "C:\\Users\\Admin\\byzas.exe /j"	byzas.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\	e1e79a114929928f2dae6a3a7c16a7a4a9f9196a9885105ae0f422ef2acdea02.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\byzas = "C:\\Users\\Admin\\byzas.exe /p"	e1e79a114929928f2dae6a3a7c16a7a4a9f9196a9885105ae0f422ef2acdea02.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\	byzas.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1196	e1e79a114929928f2dae6a3a7c16a7a4a9f9196a9885105ae0f422ef2acdea02.exe
1104	byzas.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1196	e1e79a114929928f2dae6a3a7c16a7a4a9f9196a9885105ae0f422ef2acdea02.exe
1104	byzas.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1196 wrote to memory of 1104	1196	e1e79a114929928f2dae6a3a7c16a7a4a9f9196a9885105ae0f422ef2acdea02.exe	27
PID 1196 wrote to memory of 1104	1196	e1e79a114929928f2dae6a3a7c16a7a4a9f9196a9885105ae0f422ef2acdea02.exe	27
PID 1196 wrote to memory of 1104	1196	e1e79a114929928f2dae6a3a7c16a7a4a9f9196a9885105ae0f422ef2acdea02.exe	27
PID 1196 wrote to memory of 1104	1196	e1e79a114929928f2dae6a3a7c16a7a4a9f9196a9885105ae0f422ef2acdea02.exe	27

C:\Users\Admin\AppData\Local\Temp\e1e79a114929928f2dae6a3a7c16a7a4a9f9196a9885105ae0f422ef2acdea02.exe
"C:\Users\Admin\AppData\Local\Temp\e1e79a114929928f2dae6a3a7c16a7a4a9f9196a9885105ae0f422ef2acdea02.exe"
1⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1196
- C:\Users\Admin\byzas.exe
  "C:\Users\Admin\byzas.exe"
  2⤵
  - Modifies visiblity of hidden/system files in Explorer
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:1104

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Hidden Files and Directories

Modify Registry

Credential Access

Credentials in Files

1

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\byzas.exe

Filesize
356KB

MD5
79a554823940bc8c9531f604feeb47e7

SHA1
f1890f39483b3f44a0cecbb4bfd47832f0239409

SHA256
e1e79a114929928f2dae6a3a7c16a7a4a9f9196a9885105ae0f422ef2acdea02

SHA512
ab75616d1b9d93abeda388caece14bea73747923904582000aec049575e2fc3f376a48055b319470e92536ecec55ac3b249ddfab8556306e8e0ab259e51197f7

Download Submit
C:\Users\Admin\byzas.exe

Filesize
356KB

MD5
79a554823940bc8c9531f604feeb47e7

SHA1
f1890f39483b3f44a0cecbb4bfd47832f0239409

SHA256
e1e79a114929928f2dae6a3a7c16a7a4a9f9196a9885105ae0f422ef2acdea02

SHA512
ab75616d1b9d93abeda388caece14bea73747923904582000aec049575e2fc3f376a48055b319470e92536ecec55ac3b249ddfab8556306e8e0ab259e51197f7

Download Submit
\Users\Admin\byzas.exe

Filesize
356KB

MD5
79a554823940bc8c9531f604feeb47e7

SHA1
f1890f39483b3f44a0cecbb4bfd47832f0239409

SHA256
e1e79a114929928f2dae6a3a7c16a7a4a9f9196a9885105ae0f422ef2acdea02

SHA512
ab75616d1b9d93abeda388caece14bea73747923904582000aec049575e2fc3f376a48055b319470e92536ecec55ac3b249ddfab8556306e8e0ab259e51197f7

Download Submit
\Users\Admin\byzas.exe

Filesize
356KB

MD5
79a554823940bc8c9531f604feeb47e7

SHA1
f1890f39483b3f44a0cecbb4bfd47832f0239409

SHA256
e1e79a114929928f2dae6a3a7c16a7a4a9f9196a9885105ae0f422ef2acdea02

SHA512
ab75616d1b9d93abeda388caece14bea73747923904582000aec049575e2fc3f376a48055b319470e92536ecec55ac3b249ddfab8556306e8e0ab259e51197f7

Download Submit
memory/1196-56-0x0000000075D01000-0x0000000075D03000-memory.dmp

Filesize
8KB

Download
memory/1196-65-0x0000000074A21000-0x0000000074A23000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads