e7be20d8287b6051955e40fc8f56c018c5ca0b794e5a2b81cb5d835f6ed99146

General

Target

e7be20d8287b6051955e40fc8f56c018c5ca0b794e5a2b81cb5d835f6ed99146.exe
Size

125KB
MD5

cd1a402bb58184a2d8f2f41bbd5de2da
SHA1

44337318d71cf7995ead33608cd5d145e19a88dc
SHA256

e7be20d8287b6051955e40fc8f56c018c5ca0b794e5a2b81cb5d835f6ed99146
SHA512

7ebade2b0de963b68337c7f498e359980b39957cae0ca8c40d8d45cb7e58374b3524ca63ec5e6a4f64c76d2340f9ce8ec8470e1418a68fbde0f10fb8e24f7be8
SSDEEP

1536:QaaczXhtqkUlX/NGVcJ/gAqcX0JMseuiGSeNVvDi0tMuUJJnddI3GMbI:la7qc9rqzMseNoVv9EJFdXMbI

Score

9^/10

bootkit persistence spyware stealer

Malware Config

Signatures

Detects executables containing base64 encoded User Agent 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2160-7-0x0000000010000000-0x0000000010032000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/2160-8-0x0000000010000000-0x0000000010032000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

Blocklisted process makes network request 8 IoCs

Processes:

rundll32.exe

flow	pid	process
23	2160	rundll32.exe
47	2160	rundll32.exe
48	2160	rundll32.exe
49	2160	rundll32.exe
63	2160	rundll32.exe
64	2160	rundll32.exe
79	2160	rundll32.exe
91	2160	rundll32.exe

Deletes itself 1 IoCs

Processes:

epzqqtcvi.exe

pid process

3152 epzqqtcvi.exe
Executes dropped EXE 1 IoCs

Processes:

epzqqtcvi.exe

pid process

3152 epzqqtcvi.exe
Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

2160 rundll32.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
T1552.001

pid	process
3152	epzqqtcvi.exe

pid	process
3152	epzqqtcvi.exe

pid	process
2160	rundll32.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

rundll32.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-355664440-2199602304-1223909400-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\toaaufa\\msmam.dll\",init"	rundll32.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

rundll32.exe

description	ioc	process
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
bootkit persistence

Bootkit
T1542.003

Processes:

rundll32.exe

description ioc process

File opened for modification \??\PHYSICALDRIVE0 rundll32.exe

description	ioc	process
File opened for modification	\??\PHYSICALDRIVE0	rundll32.exe

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

Processes:

rundll32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	rundll32.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

1004 PING.EXE
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

rundll32.exe

pid process

2160 rundll32.exe
2160 rundll32.exe
2160 rundll32.exe
2160 rundll32.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

rundll32.exe

description pid process

Token: SeDebugPrivilege 2160 rundll32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

e7be20d8287b6051955e40fc8f56c018c5ca0b794e5a2b81cb5d835f6ed99146.exeepzqqtcvi.exe

pid process

6056 e7be20d8287b6051955e40fc8f56c018c5ca0b794e5a2b81cb5d835f6ed99146.exe
3152 epzqqtcvi.exe

pid	process
1004	PING.EXE

pid	process
2160	rundll32.exe
2160	rundll32.exe
2160	rundll32.exe
2160	rundll32.exe

description	pid	process
Token: SeDebugPrivilege	2160	rundll32.exe

pid	process
6056	e7be20d8287b6051955e40fc8f56c018c5ca0b794e5a2b81cb5d835f6ed99146.exe
3152	epzqqtcvi.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

e7be20d8287b6051955e40fc8f56c018c5ca0b794e5a2b81cb5d835f6ed99146.execmd.exeepzqqtcvi.exe

description	pid	process	target process
PID 6056 wrote to memory of 4148	6056	e7be20d8287b6051955e40fc8f56c018c5ca0b794e5a2b81cb5d835f6ed99146.exe	cmd.exe
PID 6056 wrote to memory of 4148	6056	e7be20d8287b6051955e40fc8f56c018c5ca0b794e5a2b81cb5d835f6ed99146.exe	cmd.exe
PID 6056 wrote to memory of 4148	6056	e7be20d8287b6051955e40fc8f56c018c5ca0b794e5a2b81cb5d835f6ed99146.exe	cmd.exe
PID 4148 wrote to memory of 1004	4148	cmd.exe	PING.EXE
PID 4148 wrote to memory of 1004	4148	cmd.exe	PING.EXE
PID 4148 wrote to memory of 1004	4148	cmd.exe	PING.EXE
PID 4148 wrote to memory of 3152	4148	cmd.exe	epzqqtcvi.exe
PID 4148 wrote to memory of 3152	4148	cmd.exe	epzqqtcvi.exe
PID 4148 wrote to memory of 3152	4148	cmd.exe	epzqqtcvi.exe
PID 3152 wrote to memory of 2160	3152	epzqqtcvi.exe	rundll32.exe
PID 3152 wrote to memory of 2160	3152	epzqqtcvi.exe	rundll32.exe
PID 3152 wrote to memory of 2160	3152	epzqqtcvi.exe	rundll32.exe

C:\Users\Admin\AppData\Local\Temp\e7be20d8287b6051955e40fc8f56c018c5ca0b794e5a2b81cb5d835f6ed99146.exe
"C:\Users\Admin\AppData\Local\Temp\e7be20d8287b6051955e40fc8f56c018c5ca0b794e5a2b81cb5d835f6ed99146.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:6056

C:\Windows\SysWOW64\cmd.exe
cmd.exe /c ping 127.0.0.1 -n 2&c:\epzqqtcvi.exe "C:\Users\Admin\AppData\Local\Temp\e7be20d8287b6051955e40fc8f56c018c5ca0b794e5a2b81cb5d835f6ed99146.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:4148

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 2
3⤵
- Runs ping.exe
PID:1004

\??\c:\epzqqtcvi.exe
c:\epzqqtcvi.exe "C:\Users\Admin\AppData\Local\Temp\e7be20d8287b6051955e40fc8f56c018c5ca0b794e5a2b81cb5d835f6ed99146.exe"
3⤵
- Deletes itself
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3152

\??\c:\windows\SysWOW64\rundll32.exe
c:\windows\system32\rundll32.exe "c:\toaaufa\msmam.dll",init c:\epzqqtcvi.exe
4⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Adds Run key to start application
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2160

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Query Registry

2

T1012

Peripheral Device Discovery

1

T1120

System Information Discovery

2

T1082

Remote System Discovery

1

T1018

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

\??\c:\epzqqtcvi.exe
Filesize
125KB

MD5
7a0bd86e50707ce438d72ddbccd02c08

SHA1
a76a684e693355507607912c721c60a0cc61ed18

SHA256
cd0514ed2bf323c0d2c9f746c59a681fe8fec6c8a7963c7d5b467029d3f0800b

SHA512
1d53b0b1b8c23854de26276699f155adceadacb1aa25b2e6351d833ed4148e65d2b657b86347c6a57c1e75730b3f6b85b84d0c6966290c43512a43e4faa55dd7

Download Submit
\??\c:\toaaufa\msmam.dll
Filesize
50KB

MD5
ab32c5bfd7ecfbe9ed733dfb81210933

SHA1
4d5c6e7a0031691f12e78b096ff928b0d55bdfab

SHA256
a632527bcd457c9a4cfce83e7a9a675baff790b0279de5d8ea3192dfb2dd888a

SHA512
59b971146292074d76d23d5f26889108f4d6e33804332449f4c589bf8a8d53e37ac8dfea47e9d3c5ae0f382ae1acf25c4968bea87b3f5ff9d51f2274229c1ab5

Download Submit
memory/2160-7-0x0000000010000000-0x0000000010032000-memory.dmp

Filesize
200KB

Download
memory/2160-8-0x0000000010000000-0x0000000010032000-memory.dmp

Filesize
200KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads