cheetahkeylogger | 771750971a05a00827d90831fd751117160cfb014f8171c9999b13631439deff

General

Target

Purchase Order.exe
Size

399KB
MD5

ab969727c2995cb6f638497bf4c78624
SHA1

5fd9403239d12729020514292af459294a7db885
SHA256

0126bb5bedfa1d8a433bfa4bf885c9a86d0d98630254c7293d70e766f372432e
SHA512

f969bc469981180dc8bad174bc87f86d83f22f20426b4997f8c93d203f434f8a5d273044711a50830a345b81ae24bd876a605322204e3c7214f183a555cd60ed

Score

10^/10

cheetahkeylogger agilenet collection keylogger stealer

Malware Config

Signatures

Cheetah Keylogger
Cheetah is a keylogger and info stealer first seen in March 2020.
stealer keylogger cheetahkeylogger

Cheetah Keylogger Payload 1 IoCs

resource	yara_rule
behavioral1/memory/1992-70-0x00000000003C0000-0x00000000003F6000-memory.dmp	family_cheetahkeylogger

Obfuscated with Agile.Net obfuscator 1 IoCs

Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

agilenet

resource	yara_rule
behavioral1/memory/1460-55-0x00000000001E0000-0x00000000001F6000-memory.dmp	agile_net

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

Looks up external IP address via web service 1 IoCs

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

flow	ioc
4	ifconfig.me

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1460 set thread context of 1992	1460	Purchase Order.exe	27

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1460	Purchase Order.exe
1460	Purchase Order.exe
1460	Purchase Order.exe
1992	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1460	Purchase Order.exe
Token: SeDebugPrivilege	1992	InstallUtil.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1460 wrote to memory of 1992	1460	Purchase Order.exe	27
PID 1460 wrote to memory of 1992	1460	Purchase Order.exe	27
PID 1460 wrote to memory of 1992	1460	Purchase Order.exe	27
PID 1460 wrote to memory of 1992	1460	Purchase Order.exe	27
PID 1460 wrote to memory of 1992	1460	Purchase Order.exe	27
PID 1460 wrote to memory of 1992	1460	Purchase Order.exe	27
PID 1460 wrote to memory of 1992	1460	Purchase Order.exe	27
PID 1460 wrote to memory of 1992	1460	Purchase Order.exe	27
PID 1460 wrote to memory of 1992	1460	Purchase Order.exe	27
PID 1460 wrote to memory of 1992	1460	Purchase Order.exe	27
PID 1460 wrote to memory of 1992	1460	Purchase Order.exe	27

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe
"C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1460
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1992

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1460-54-0x00000000012C0000-0x000000000132A000-memory.dmp

Filesize
424KB

Download
memory/1460-55-0x00000000001E0000-0x00000000001F6000-memory.dmp

Filesize
88KB

Download
memory/1460-56-0x00000000763E1000-0x00000000763E3000-memory.dmp

Filesize
8KB

Download
memory/1460-57-0x0000000000410000-0x0000000000418000-memory.dmp

Filesize
32KB

Download
memory/1460-58-0x00000000004E0000-0x00000000004E8000-memory.dmp

Filesize
32KB

Download
memory/1460-59-0x00000000004F0000-0x00000000004FA000-memory.dmp

Filesize
40KB

Download
memory/1992-60-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1992-61-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1992-63-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1992-64-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1992-67-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1992-69-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1992-70-0x00000000003C0000-0x00000000003F6000-memory.dmp

Filesize
216KB

Download

Analysis

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