b3a914f443419830906a4b83dce5395eb13cf16295b005dc2260412a3dcb7c39

General

Target

b3a914f443419830906a4b83dce5395eb13cf16295b005dc2260412a3dcb7c39.exe
Size

128KB
MD5

01b5a58b9dc6c12b03120e17834dd331
SHA1

5392178b429292211cfa7b6f230ef78353156059
SHA256

b3a914f443419830906a4b83dce5395eb13cf16295b005dc2260412a3dcb7c39
SHA512

ff939c5736344376c8cbcb4ae1d99038c1095bf4fefce7847cdf06886535549976c94b625c7a58fecc70ee3d49640c9d96809a83a58bf75974145ecdcfa8a89a
SSDEEP

3072:gfoYE/k5MuqR2q3Yjv5SN/JHFo8gwpqGggcbFgq3Yjv5SN/JHFoc:gf9nW2IHN/JH+7IIbFgIHN/JH+c

Score

7^/10

credential_access discovery persistence spyware stealer

Malware Config

Signatures

Credentials from Password Stores: Windows Credential Manager 1 TTPs
Suspicious access to Credentials History.
credential_access stealer

Windows Credential Manager
T1555.004

Executes dropped EXE 1 IoCs

Processes:

outlook.exe

pid	Process
4992	outlook.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 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

b3a914f443419830906a4b83dce5395eb13cf16295b005dc2260412a3dcb7c39.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\System = "C:\\Windows\\sys32.exe"	b3a914f443419830906a4b83dce5395eb13cf16295b005dc2260412a3dcb7c39.exe

Drops file in Windows directory 6 IoCs

Processes:

b3a914f443419830906a4b83dce5395eb13cf16295b005dc2260412a3dcb7c39.exeoutlook.exe

description	ioc	Process
File created	C:\Windows\sys32.exe	b3a914f443419830906a4b83dce5395eb13cf16295b005dc2260412a3dcb7c39.exe
File created	C:\Windows\outlook.exe	b3a914f443419830906a4b83dce5395eb13cf16295b005dc2260412a3dcb7c39.exe
File opened for modification	C:\Windows\outlook.exe	b3a914f443419830906a4b83dce5395eb13cf16295b005dc2260412a3dcb7c39.exe
File opened for modification	C:\Windows\sys32.exe	b3a914f443419830906a4b83dce5395eb13cf16295b005dc2260412a3dcb7c39.exe
File opened for modification	C:\Windows\outlook.cfg	outlook.exe
File created	C:\Windows\crc32.cfg	outlook.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
3068	4992	WerFault.exe	83

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

Processes:

b3a914f443419830906a4b83dce5395eb13cf16295b005dc2260412a3dcb7c39.exeoutlook.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b3a914f443419830906a4b83dce5395eb13cf16295b005dc2260412a3dcb7c39.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	outlook.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

b3a914f443419830906a4b83dce5395eb13cf16295b005dc2260412a3dcb7c39.exe

description	pid	Process	procid_target
PID 3120 wrote to memory of 4992	3120	b3a914f443419830906a4b83dce5395eb13cf16295b005dc2260412a3dcb7c39.exe	83
PID 3120 wrote to memory of 4992	3120	b3a914f443419830906a4b83dce5395eb13cf16295b005dc2260412a3dcb7c39.exe	83
PID 3120 wrote to memory of 4992	3120	b3a914f443419830906a4b83dce5395eb13cf16295b005dc2260412a3dcb7c39.exe	83

C:\Users\Admin\AppData\Local\Temp\b3a914f443419830906a4b83dce5395eb13cf16295b005dc2260412a3dcb7c39.exe
"C:\Users\Admin\AppData\Local\Temp\b3a914f443419830906a4b83dce5395eb13cf16295b005dc2260412a3dcb7c39.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3120
- C:\Windows\outlook.exe
  C:\Windows\outlook.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  PID:4992
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4992 -s 30484
    3⤵
    - Program crash
    PID:3068

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 200 -p 4992 -ip 4992
1⤵
PID:2840

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

2

T1555

Credentials from Web Browsers

1

T1555.003

Windows Credential Manager

1

T1555.004

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:\Windows\outlook.cfg

Filesize
1KB

MD5
b156a51acb4bff6719532ac517a5262e

SHA1
07bcf395ba35a7da07961cb131bb181a62ab7c5a

SHA256
3fd358e6e035f9adebc68268dd4b8bec92758afc846db0dd498db6c72d827200

SHA512
0cb76f354574dfd61aeeb15d05c2857a640436442c0cc0cdefaf0555f02ebbe366dbb63770e9a462115411b8d046b1e1bf37f6ebcf9d685fdd60a4b28c5d43ed

Download Submit
C:\Windows\outlook.cfg

Filesize
2KB

MD5
7c48c983a5c7d86790d82122cbda5803

SHA1
946483f6245f5f811b173c178daa32c98919cffe

SHA256
f8fd20d1d47f3e189862451105beeda378ab03d84c44ef0251e965f11893c612

SHA512
a0b6082af2bfac351c4bd294e91f43b0fadc4858d347fd39eb105a8b2165c54b874640fcc3eb2c6b4c67cb0c82e441352c96e2e7801cab40fea51e66d0159219

Download Submit
C:\Windows\outlook.cfg

Filesize
295B

MD5
c19aad2e5b26747970fbe045bf6beba4

SHA1
7bbec1f5c6536fa159238746e23b9d703f155217

SHA256
3a232c9dfcaa3967bb58aeedfa7ac948b50f79457dc24ce5e26fe7d27accb4a5

SHA512
8be1a2b34277db2a47a51b25e1a23d94ba48fab98cbcc554b11e7f928c0c6b2e4b3fc8706e3ecd094bdb3d7bc51a2760a65e839e25ee84fb97d1de052962d1cd

Download Submit
C:\Windows\outlook.cfg

Filesize
1KB

MD5
2415f3c9dc60beb0c00538b1cd195b4c

SHA1
4857929774fc33daed5076815a053846382e8a37

SHA256
91ca2a88ebf38b57dd427ad6b23e9ab3be67e9426fa6fe9d89afb2dd311c5e14

SHA512
eb440b9e0bbaab043cff889c3607965f98dc93c341d3a2e4fe39e87c84acec425e95b273aae52c934f472bfc2c5367259a73fe15f8f9f4001e2c9041aac6ebab

Download Submit
C:\Windows\outlook.exe

Filesize
49KB

MD5
0e9379e357aba95f8b9883af9b67675e

SHA1
280a174a414e5b8588f42b6328af2c8c8ff4394f

SHA256
96b9c4ead67d03eb2c69103a983274e013e3466e80d8f95bd7cf3aea8be05b28

SHA512
6cc383806882729cd889b025802ac0d5e1c55a74b3e7d7c98932644e8802fe52b5b14a886eff70ab7deaa70fb60bb9898e55b5cd83b5b99e2a2d107dce367784

Download Submit
memory/3120-0-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/3120-27-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/4992-112-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/4992-127-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads