taurus_stealer | 7fc9d4a00d0a1482b4b320feb5bed172f354c48705caae9d52db720ce7d98d84

Analysis

max time kernel
12s
max time network
12s
platform
windows7_x64
resource
win7v20201028
submitted
17-03-2021 12:10

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General

Target

7fc9d4a00d0a1482b4b320feb5bed172f354c48705caae9d52db720ce7d98d84.exe
Size

2.0MB
MD5

602c4fc857abdc65397927df41fc638d
SHA1

57dd28ad57e53751dbf68959a5a8fc4012d905a4
SHA256

7fc9d4a00d0a1482b4b320feb5bed172f354c48705caae9d52db720ce7d98d84
SHA512

c7da5aff57e4c125a4b42bf6a7e319509b9786fd673f4e3320ed0e2124cdf649ac4708ed2430bc7f550e2ba260383cf2a1099d0b4f9ac7ec6af3516c815d84ad

Score

10^/10

taurus_stealer discovery spyware stealer trojan

Malware Config

Signatures

Taurus Stealer
Taurus is an infostealer first seen in June 2020.
trojan stealer taurus_stealer
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
Accesses 2FA software files, possible credential harvesting 2 TTPs
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Suspicious use of NtSetInformationThreadHideFromDebugger 8 IoCs

Processes:

7fc9d4a00d0a1482b4b320feb5bed172f354c48705caae9d52db720ce7d98d84.exe

pid	Process
2028	7fc9d4a00d0a1482b4b320feb5bed172f354c48705caae9d52db720ce7d98d84.exe
2028	7fc9d4a00d0a1482b4b320feb5bed172f354c48705caae9d52db720ce7d98d84.exe
2028	7fc9d4a00d0a1482b4b320feb5bed172f354c48705caae9d52db720ce7d98d84.exe
2028	7fc9d4a00d0a1482b4b320feb5bed172f354c48705caae9d52db720ce7d98d84.exe
2028	7fc9d4a00d0a1482b4b320feb5bed172f354c48705caae9d52db720ce7d98d84.exe
2028	7fc9d4a00d0a1482b4b320feb5bed172f354c48705caae9d52db720ce7d98d84.exe
2028	7fc9d4a00d0a1482b4b320feb5bed172f354c48705caae9d52db720ce7d98d84.exe
2028	7fc9d4a00d0a1482b4b320feb5bed172f354c48705caae9d52db720ce7d98d84.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

7fc9d4a00d0a1482b4b320feb5bed172f354c48705caae9d52db720ce7d98d84.exe

description	pid	Process	procid_target
PID 2028 set thread context of 1500	2028	7fc9d4a00d0a1482b4b320feb5bed172f354c48705caae9d52db720ce7d98d84.exe	35

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

System Information Discovery
T1082

Delays execution with timeout.exe 2 IoCs

evasion

Processes:

timeout.exetimeout.exe

pid	Process
2000	timeout.exe
1888	timeout.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

7fc9d4a00d0a1482b4b320feb5bed172f354c48705caae9d52db720ce7d98d84.exe

pid	Process
2028	7fc9d4a00d0a1482b4b320feb5bed172f354c48705caae9d52db720ce7d98d84.exe
2028	7fc9d4a00d0a1482b4b320feb5bed172f354c48705caae9d52db720ce7d98d84.exe
2028	7fc9d4a00d0a1482b4b320feb5bed172f354c48705caae9d52db720ce7d98d84.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

7fc9d4a00d0a1482b4b320feb5bed172f354c48705caae9d52db720ce7d98d84.exe

description	pid	Process
Token: SeDebugPrivilege	2028	7fc9d4a00d0a1482b4b320feb5bed172f354c48705caae9d52db720ce7d98d84.exe

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

7fc9d4a00d0a1482b4b320feb5bed172f354c48705caae9d52db720ce7d98d84.execmd.execmd.exe

description	pid	Process	procid_target
PID 2028 wrote to memory of 1972	2028	7fc9d4a00d0a1482b4b320feb5bed172f354c48705caae9d52db720ce7d98d84.exe	26
PID 2028 wrote to memory of 1972	2028	7fc9d4a00d0a1482b4b320feb5bed172f354c48705caae9d52db720ce7d98d84.exe	26
PID 2028 wrote to memory of 1972	2028	7fc9d4a00d0a1482b4b320feb5bed172f354c48705caae9d52db720ce7d98d84.exe	26
PID 2028 wrote to memory of 1972	2028	7fc9d4a00d0a1482b4b320feb5bed172f354c48705caae9d52db720ce7d98d84.exe	26
PID 1972 wrote to memory of 1888	1972	cmd.exe	28
PID 1972 wrote to memory of 1888	1972	cmd.exe	28
PID 1972 wrote to memory of 1888	1972	cmd.exe	28
PID 1972 wrote to memory of 1888	1972	cmd.exe	28
PID 2028 wrote to memory of 1892	2028	7fc9d4a00d0a1482b4b320feb5bed172f354c48705caae9d52db720ce7d98d84.exe	32
PID 2028 wrote to memory of 1892	2028	7fc9d4a00d0a1482b4b320feb5bed172f354c48705caae9d52db720ce7d98d84.exe	32
PID 2028 wrote to memory of 1892	2028	7fc9d4a00d0a1482b4b320feb5bed172f354c48705caae9d52db720ce7d98d84.exe	32
PID 2028 wrote to memory of 1892	2028	7fc9d4a00d0a1482b4b320feb5bed172f354c48705caae9d52db720ce7d98d84.exe	32
PID 1892 wrote to memory of 2000	1892	cmd.exe	34
PID 1892 wrote to memory of 2000	1892	cmd.exe	34
PID 1892 wrote to memory of 2000	1892	cmd.exe	34
PID 1892 wrote to memory of 2000	1892	cmd.exe	34
PID 2028 wrote to memory of 1500	2028	7fc9d4a00d0a1482b4b320feb5bed172f354c48705caae9d52db720ce7d98d84.exe	35
PID 2028 wrote to memory of 1500	2028	7fc9d4a00d0a1482b4b320feb5bed172f354c48705caae9d52db720ce7d98d84.exe	35
PID 2028 wrote to memory of 1500	2028	7fc9d4a00d0a1482b4b320feb5bed172f354c48705caae9d52db720ce7d98d84.exe	35
PID 2028 wrote to memory of 1500	2028	7fc9d4a00d0a1482b4b320feb5bed172f354c48705caae9d52db720ce7d98d84.exe	35
PID 2028 wrote to memory of 1500	2028	7fc9d4a00d0a1482b4b320feb5bed172f354c48705caae9d52db720ce7d98d84.exe	35
PID 2028 wrote to memory of 1500	2028	7fc9d4a00d0a1482b4b320feb5bed172f354c48705caae9d52db720ce7d98d84.exe	35
PID 2028 wrote to memory of 1500	2028	7fc9d4a00d0a1482b4b320feb5bed172f354c48705caae9d52db720ce7d98d84.exe	35
PID 2028 wrote to memory of 1500	2028	7fc9d4a00d0a1482b4b320feb5bed172f354c48705caae9d52db720ce7d98d84.exe	35
PID 2028 wrote to memory of 1500	2028	7fc9d4a00d0a1482b4b320feb5bed172f354c48705caae9d52db720ce7d98d84.exe	35
PID 2028 wrote to memory of 1500	2028	7fc9d4a00d0a1482b4b320feb5bed172f354c48705caae9d52db720ce7d98d84.exe	35
PID 2028 wrote to memory of 1500	2028	7fc9d4a00d0a1482b4b320feb5bed172f354c48705caae9d52db720ce7d98d84.exe	35

C:\Users\Admin\AppData\Local\Temp\7fc9d4a00d0a1482b4b320feb5bed172f354c48705caae9d52db720ce7d98d84.exe
"C:\Users\Admin\AppData\Local\Temp\7fc9d4a00d0a1482b4b320feb5bed172f354c48705caae9d52db720ce7d98d84.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2028
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /c timeout 4
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1972
- - C:\Windows\SysWOW64\timeout.exe
    timeout 4
    3⤵
    - Delays execution with timeout.exe
    PID:1888
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c timeout 1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1892
- - C:\Windows\SysWOW64\timeout.exe
    timeout 1
    3⤵
    - Delays execution with timeout.exe
    PID:2000
- C:\Users\Admin\AppData\Local\Temp\7fc9d4a00d0a1482b4b320feb5bed172f354c48705caae9d52db720ce7d98d84.exe
  "C:\Users\Admin\AppData\Local\Temp\7fc9d4a00d0a1482b4b320feb5bed172f354c48705caae9d52db720ce7d98d84.exe"
  2⤵
  PID:1500

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/576-14-0x000007FEF6B90000-0x000007FEF6E0A000-memory.dmp

Filesize
2.5MB

Download
memory/1500-9-0x0000000000400000-0x000000000043B000-memory.dmp

Filesize
236KB

Download
memory/1500-12-0x0000000000400000-0x000000000043B000-memory.dmp

Filesize
236KB

Download
memory/1500-13-0x0000000075C31000-0x0000000075C33000-memory.dmp

Filesize
8KB

Download
memory/1500-10-0x000000000041EBF2-mapping.dmp

Download
memory/1888-5-0x0000000000000000-mapping.dmp

Download
memory/1892-7-0x0000000000000000-mapping.dmp

Download
memory/1972-4-0x0000000000000000-mapping.dmp

Download
memory/2000-8-0x0000000000000000-mapping.dmp

Download
memory/2028-11-0x0000000005FF0000-0x0000000005FF1000-memory.dmp

Filesize
4KB

Download
memory/2028-2-0x0000000074EE0000-0x00000000755CE000-memory.dmp

Filesize
6.9MB

Download
memory/2028-6-0x00000000005D0000-0x0000000000617000-memory.dmp

Filesize
284KB

Download
memory/2028-3-0x0000000001000000-0x0000000001001000-memory.dmp

Filesize
4KB

Download