typhon | b942051bc7005005adb60a5dae192214608a85ce473506ccaae10c3d23f851bc

Analysis

max time kernel
84s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
18/04/2023, 20:56

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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/4764-136-0x0000000000560000-0x00000000007B2000-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-1-5-21-144354903-2550862337-1367551827-1000\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
17	ipinfo.io
27	api.ipify.org
30	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
3792	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
4172	taskkill.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
4764	typhon.exe
4764	typhon.exe
4764	typhon.exe
4764	typhon.exe
4764	typhon.exe
4764	typhon.exe
4764	typhon.exe
4764	typhon.exe
4764	typhon.exe
4764	typhon.exe
4764	typhon.exe
4764	typhon.exe
4764	typhon.exe
4764	typhon.exe
4764	typhon.exe
4764	typhon.exe
4764	typhon.exe
4764	typhon.exe
4764	typhon.exe
4764	typhon.exe
4764	typhon.exe
4764	typhon.exe
4764	typhon.exe
4764	typhon.exe
4764	typhon.exe
4764	typhon.exe
4764	typhon.exe
4764	typhon.exe
4764	typhon.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4764	typhon.exe
Token: SeDebugPrivilege	4172	taskkill.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 4764 wrote to memory of 4116	4764	typhon.exe	86
PID 4764 wrote to memory of 4116	4764	typhon.exe	86
PID 4764 wrote to memory of 4116	4764	typhon.exe	86
PID 4116 wrote to memory of 2120	4116	cmd.exe	88
PID 4116 wrote to memory of 2120	4116	cmd.exe	88
PID 4116 wrote to memory of 2120	4116	cmd.exe	88
PID 4116 wrote to memory of 5032	4116	cmd.exe	89
PID 4116 wrote to memory of 5032	4116	cmd.exe	89
PID 4116 wrote to memory of 5032	4116	cmd.exe	89
PID 4116 wrote to memory of 60	4116	cmd.exe	90
PID 4116 wrote to memory of 60	4116	cmd.exe	90
PID 4116 wrote to memory of 60	4116	cmd.exe	90
PID 4764 wrote to memory of 3128	4764	typhon.exe	91
PID 4764 wrote to memory of 3128	4764	typhon.exe	91
PID 4764 wrote to memory of 3128	4764	typhon.exe	91
PID 3128 wrote to memory of 1956	3128	cmd.exe	93
PID 3128 wrote to memory of 1956	3128	cmd.exe	93
PID 3128 wrote to memory of 1956	3128	cmd.exe	93
PID 3128 wrote to memory of 4752	3128	cmd.exe	94
PID 3128 wrote to memory of 4752	3128	cmd.exe	94
PID 3128 wrote to memory of 4752	3128	cmd.exe	94
PID 4764 wrote to memory of 3704	4764	typhon.exe	97
PID 4764 wrote to memory of 3704	4764	typhon.exe	97
PID 4764 wrote to memory of 3704	4764	typhon.exe	97
PID 3704 wrote to memory of 4172	3704	cmd.exe	99
PID 3704 wrote to memory of 4172	3704	cmd.exe	99
PID 3704 wrote to memory of 4172	3704	cmd.exe	99
PID 3704 wrote to memory of 3792	3704	cmd.exe	100
PID 3704 wrote to memory of 3792	3704	cmd.exe	100
PID 3704 wrote to memory of 3792	3704	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:4764
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4116
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    PID:2120
- - C:\Windows\SysWOW64\netsh.exe
    netsh wlan show profile
    3⤵
    PID:5032
- - C:\Windows\SysWOW64\findstr.exe
    findstr All
    3⤵
    PID:60
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3128
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    PID:1956
- - C:\Windows\SysWOW64\netsh.exe
    netsh wlan show networks mode=bssid
    3⤵
    PID:4752
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c C:\Users\Admin\AppData\Local\Temp\tmp1515.tmp.bat & Del C:\Users\Admin\AppData\Local\Temp\typhon.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3704
- - C:\Windows\SysWOW64\taskkill.exe
    TaskKill /F /IM 4764
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:4172
- - C:\Windows\SysWOW64\timeout.exe
    Timeout /T 2 /Nobreak
    3⤵
    - Delays execution with timeout.exe
    PID:3792

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
027db52d1c9e9fb64b0bcf356241e409

SHA1
c3bc1d30a1521dc75e9f9e9cf4c720ac16daef1c

SHA256
d3705447a96dc9c6954c063c46b07fb7e25d0becbffd110a98e41423d9579f65

SHA512
77ddfa96159e8be561601ecc20c6239250aa3ebbf92b8b64deeceb5af586749e602852d8e1323ad73072e501a181ba3080e749d15d62f051814fd7a5456c8f50

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp1515.tmp.bat

Filesize
101B

MD5
e89f28180a9721df9b168817748cbad5

SHA1
ada77521913b497b770121945dfe9d7ec55b1764

SHA256
41d981b3f6e5dcae45387c24832b055dbfadb32de9539b5ecab2b1ce0dc0a215

SHA512
fe9fa98f79eac23c7f2312435e010c474c6862b60a17bf140008255d5e567b46ef6dc5d0cf5d418a62cb03d7280b6a0f37e23f7bd433496b42d091d22e249312

Download Submit
memory/4764-136-0x0000000000560000-0x00000000007B2000-memory.dmp

Filesize
2.3MB

Download
memory/4764-137-0x00000000051C0000-0x00000000051D0000-memory.dmp

Filesize
64KB

Download
memory/4764-138-0x0000000005AB0000-0x0000000005B42000-memory.dmp

Filesize
584KB

Download
memory/4764-139-0x0000000005B50000-0x0000000005BB6000-memory.dmp

Filesize
408KB

Download
memory/4764-140-0x0000000006270000-0x0000000006814000-memory.dmp

Filesize
5.6MB

Download
memory/4764-213-0x00000000051C0000-0x00000000051D0000-memory.dmp

Filesize
64KB

Download
memory/4764-253-0x00000000051C0000-0x00000000051D0000-memory.dmp

Filesize
64KB

Download
memory/4764-254-0x00000000051C0000-0x00000000051D0000-memory.dmp

Filesize
64KB

Download