typhon | b942051bc7005005adb60a5dae192214608a85ce473506ccaae10c3d23f851bc

Analysis

max time kernel
135s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20230221-en
resource tags

arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
submitted
18/04/2023, 21:14

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General

Target

typhon.exe
Size

2.3MB
MD5

d1d84c844681fe3c672a713c1a3bf52c
SHA1

099ec412993603c50ec87fd27c2315bd87b6fe7e
SHA256

a12933ab47993f5b6d09bec935163c7f077576a8b7b8362e397fe4f1ce4e791c
SHA512

3ee33d27c03f4b1e9977ea8b8905ec070cfc74adf4327dbb81923c2fa2df412d5f9d08b1d7e49c54ccf6333728a8e3c2ae278b79a214bb662854f8019dee25d0
SSDEEP

49152:8UbowEOvygS7/1sHOqJ02nTPFdRPqxMai2TBmCs2Odw+W7SC:8Ucwti78OqJ7TPB2Tc2Ou

Score

10^/10

typhon spyware stealer

Malware Config

Signatures

Detects Typhon stealer 1 IoCs

stealer

resource	yara_rule
behavioral2/memory/3732-133-0x0000000000B20000-0x0000000000D72000-memory.dmp	family_typhon

Typhon
Typhon is a modular stealer written in C#.
stealer typhon

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation	typhon.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

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
12	ipinfo.io
27	api.ipify.org
28	api.ipify.org

Looks up geolocation information via web service
Uses a legitimate geolocation service to find the infected system's geolocation info.
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	typhon.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	typhon.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2488	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
1720	taskkill.exe

Suspicious behavior: EnumeratesProcesses 25 IoCs

pid	Process
3732	typhon.exe
3732	typhon.exe
3732	typhon.exe
3732	typhon.exe
3732	typhon.exe
3732	typhon.exe
3732	typhon.exe
3732	typhon.exe
3732	typhon.exe
3732	typhon.exe
3732	typhon.exe
3732	typhon.exe
3732	typhon.exe
3732	typhon.exe
3732	typhon.exe
3732	typhon.exe
3732	typhon.exe
3732	typhon.exe
3732	typhon.exe
3732	typhon.exe
3732	typhon.exe
3732	typhon.exe
3732	typhon.exe
3732	typhon.exe
3732	typhon.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3732	typhon.exe
Token: SeDebugPrivilege	1720	taskkill.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3732 wrote to memory of 1020	3732	typhon.exe	85
PID 3732 wrote to memory of 1020	3732	typhon.exe	85
PID 3732 wrote to memory of 1020	3732	typhon.exe	85
PID 1020 wrote to memory of 4368	1020	cmd.exe	87
PID 1020 wrote to memory of 4368	1020	cmd.exe	87
PID 1020 wrote to memory of 4368	1020	cmd.exe	87
PID 1020 wrote to memory of 320	1020	cmd.exe	88
PID 1020 wrote to memory of 320	1020	cmd.exe	88
PID 1020 wrote to memory of 320	1020	cmd.exe	88
PID 1020 wrote to memory of 216	1020	cmd.exe	89
PID 1020 wrote to memory of 216	1020	cmd.exe	89
PID 1020 wrote to memory of 216	1020	cmd.exe	89
PID 3732 wrote to memory of 1792	3732	typhon.exe	90
PID 3732 wrote to memory of 1792	3732	typhon.exe	90
PID 3732 wrote to memory of 1792	3732	typhon.exe	90
PID 1792 wrote to memory of 4624	1792	cmd.exe	92
PID 1792 wrote to memory of 4624	1792	cmd.exe	92
PID 1792 wrote to memory of 4624	1792	cmd.exe	92
PID 1792 wrote to memory of 708	1792	cmd.exe	93
PID 1792 wrote to memory of 708	1792	cmd.exe	93
PID 1792 wrote to memory of 708	1792	cmd.exe	93
PID 3732 wrote to memory of 1356	3732	typhon.exe	97
PID 3732 wrote to memory of 1356	3732	typhon.exe	97
PID 3732 wrote to memory of 1356	3732	typhon.exe	97
PID 1356 wrote to memory of 1720	1356	cmd.exe	99
PID 1356 wrote to memory of 1720	1356	cmd.exe	99
PID 1356 wrote to memory of 1720	1356	cmd.exe	99
PID 1356 wrote to memory of 2488	1356	cmd.exe	100
PID 1356 wrote to memory of 2488	1356	cmd.exe	100
PID 1356 wrote to memory of 2488	1356	cmd.exe	100

C:\Users\Admin\AppData\Local\Temp\typhon.exe
"C:\Users\Admin\AppData\Local\Temp\typhon.exe"
1⤵
- Checks computer location settings
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3732
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1020
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    PID:4368
- - C:\Windows\SysWOW64\netsh.exe
    netsh wlan show profile
    3⤵
    PID:320
- - C:\Windows\SysWOW64\findstr.exe
    findstr All
    3⤵
    PID:216
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1792
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    PID:4624
- - C:\Windows\SysWOW64\netsh.exe
    netsh wlan show networks mode=bssid
    3⤵
    PID:708
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c C:\Users\Admin\AppData\Local\Temp\tmpB419.tmp.bat & Del C:\Users\Admin\AppData\Local\Temp\typhon.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1356
- - C:\Windows\SysWOW64\taskkill.exe
    TaskKill /F /IM 3732
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1720
- - C:\Windows\SysWOW64\timeout.exe
    Timeout /T 2 /Nobreak
    3⤵
    - Delays execution with timeout.exe
    PID:2488

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

C:\Users\Admin\AppData\Local\ReporterLogs\System Info\Running Processes.txt

Filesize
4KB

MD5
ba4662f5d588961a0f34644381ef24f5

SHA1
0f8221680867f467baf7c6ca38946f90183182f9

SHA256
78283ab2739d107b68675358b05f4212f1c3a31b7050fe4838ffb598c28f1fcb

SHA512
7fdab5fa2261f1fcb1c34a20d820d05bc41dca9e825eb8918459f6d1c17ebe0a77ea12b59828feec644867dcbf130bb096093ce9cbf91ea73162a42c9269824f

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpB419.tmp.bat

Filesize
101B

MD5
4ca1f32e3bdc621b689344b6d04d4f9f

SHA1
175758917110f318ca82f779ef9d266f3a90d15e

SHA256
779f8871066cc9baf969014e57ade2887bdd771614310b8a75b5524f05282730

SHA512
0fbea06e3e478a76497778fe46fc1ad90bca8a5aa4deaec320a2c0a1eda645943af8f98358b652d44c4f05c1e4dd0063e35c8f7bd2e9389ad5898a061e855b96

Download Submit
memory/3732-133-0x0000000000B20000-0x0000000000D72000-memory.dmp

Filesize
2.3MB

Download
memory/3732-134-0x00000000057D0000-0x00000000057E0000-memory.dmp

Filesize
64KB

Download
memory/3732-135-0x00000000061C0000-0x0000000006252000-memory.dmp

Filesize
584KB

Download
memory/3732-136-0x0000000006260000-0x00000000062C6000-memory.dmp

Filesize
408KB

Download
memory/3732-137-0x0000000006980000-0x0000000006F24000-memory.dmp

Filesize
5.6MB

Download
memory/3732-228-0x00000000057D0000-0x00000000057E0000-memory.dmp

Filesize
64KB

Download
memory/3732-249-0x00000000057D0000-0x00000000057E0000-memory.dmp

Filesize
64KB

Download
memory/3732-250-0x00000000057D0000-0x00000000057E0000-memory.dmp

Filesize
64KB

Download