090b3dff3fe7b4db767f6a7ba2012a7a3ab3acf905357c6a3c90e88a5c6ccc10

General

Target

090b3dff3fe7b4db767f6a7ba2012a7a3ab3acf905357c6a3c90e88a5c6ccc10.exe
Size

112KB
MD5

13f60d61b7c0536f0faf858e2ca1cdbe
SHA1

53b53b1a932a6ee9782f442a1c3c3e94b0c75e40
SHA256

090b3dff3fe7b4db767f6a7ba2012a7a3ab3acf905357c6a3c90e88a5c6ccc10
SHA512

76ba842bdbfe2632aab194a7d76f52eaf3244c020a7d4b583b396c61ddcdee5c90ff5e741a1c65be5b16e16a5172415598d43e648b1f59dc96ed334fd6450a5c

Score

8^/10

bootkit persistence spyware stealer upx

Malware Config

Signatures

UPX packed file 8 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral1/memory/1700-55-0x0000000010000000-0x0000000010021000-memory.dmp	upx
behavioral1/memory/1700-58-0x0000000010000000-0x0000000010021000-memory.dmp	upx
behavioral1/memory/1700-57-0x0000000010000000-0x0000000010021000-memory.dmp	upx
behavioral1/memory/1700-60-0x0000000010000000-0x0000000010021000-memory.dmp	upx
behavioral1/memory/1700-69-0x0000000000700000-0x000000000072D000-memory.dmp	upx
behavioral1/memory/1732-72-0x0000000010000000-0x0000000010021000-memory.dmp	upx
behavioral1/memory/1700-73-0x0000000010000000-0x0000000010021000-memory.dmp	upx
behavioral1/memory/1732-74-0x0000000010000000-0x0000000010021000-memory.dmp	upx

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Ueykwcj.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\1pe9l19u32t\\Ueykwcj.exe /Klaunchp"	Ueykwcj.exe

Enumerates connected drives 3 TTPs 24 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:

Ueykwcj.exe

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

Writes to the Master Boot Record (MBR) 1 TTPs 2 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1067

Processes:

090b3dff3fe7b4db767f6a7ba2012a7a3ab3acf905357c6a3c90e88a5c6ccc10.exeUeykwcj.exe

description	ioc	process
File opened for modification	\??\PHYSICALDRIVE0	090b3dff3fe7b4db767f6a7ba2012a7a3ab3acf905357c6a3c90e88a5c6ccc10.exe
File opened for modification	\??\PHYSICALDRIVE0	Ueykwcj.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:

Ueykwcj.exe

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

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Ueykwcj.exe

pid process

1732 Ueykwcj.exe
1732 Ueykwcj.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

090b3dff3fe7b4db767f6a7ba2012a7a3ab3acf905357c6a3c90e88a5c6ccc10.exe

pid process

1700 090b3dff3fe7b4db767f6a7ba2012a7a3ab3acf905357c6a3c90e88a5c6ccc10.exe

pid	process
1732	Ueykwcj.exe
1732	Ueykwcj.exe

pid	process
1700	090b3dff3fe7b4db767f6a7ba2012a7a3ab3acf905357c6a3c90e88a5c6ccc10.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

Processes:

090b3dff3fe7b4db767f6a7ba2012a7a3ab3acf905357c6a3c90e88a5c6ccc10.exeUeykwcj.exe

description	pid	process
Token: SeDebugPrivilege	1700	090b3dff3fe7b4db767f6a7ba2012a7a3ab3acf905357c6a3c90e88a5c6ccc10.exe
Token: SeDebugPrivilege	1700	090b3dff3fe7b4db767f6a7ba2012a7a3ab3acf905357c6a3c90e88a5c6ccc10.exe
Token: SeDebugPrivilege	1700	090b3dff3fe7b4db767f6a7ba2012a7a3ab3acf905357c6a3c90e88a5c6ccc10.exe
Token: SeDebugPrivilege	1732	Ueykwcj.exe
Token: SeDebugPrivilege	1732	Ueykwcj.exe
Token: SeDebugPrivilege	1732	Ueykwcj.exe
Token: SeDebugPrivilege	1732	Ueykwcj.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

090b3dff3fe7b4db767f6a7ba2012a7a3ab3acf905357c6a3c90e88a5c6ccc10.exeUeykwcj.exe

pid process

1700 090b3dff3fe7b4db767f6a7ba2012a7a3ab3acf905357c6a3c90e88a5c6ccc10.exe
1732 Ueykwcj.exe

pid	process
1700	090b3dff3fe7b4db767f6a7ba2012a7a3ab3acf905357c6a3c90e88a5c6ccc10.exe
1732	Ueykwcj.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

090b3dff3fe7b4db767f6a7ba2012a7a3ab3acf905357c6a3c90e88a5c6ccc10.exe

description	pid	process	target process
PID 1700 wrote to memory of 1732	1700	090b3dff3fe7b4db767f6a7ba2012a7a3ab3acf905357c6a3c90e88a5c6ccc10.exe	Ueykwcj.exe
PID 1700 wrote to memory of 1732	1700	090b3dff3fe7b4db767f6a7ba2012a7a3ab3acf905357c6a3c90e88a5c6ccc10.exe	Ueykwcj.exe
PID 1700 wrote to memory of 1732	1700	090b3dff3fe7b4db767f6a7ba2012a7a3ab3acf905357c6a3c90e88a5c6ccc10.exe	Ueykwcj.exe
PID 1700 wrote to memory of 1732	1700	090b3dff3fe7b4db767f6a7ba2012a7a3ab3acf905357c6a3c90e88a5c6ccc10.exe	Ueykwcj.exe

C:\Users\Admin\AppData\Local\Temp\090b3dff3fe7b4db767f6a7ba2012a7a3ab3acf905357c6a3c90e88a5c6ccc10.exe
"C:\Users\Admin\AppData\Local\Temp\090b3dff3fe7b4db767f6a7ba2012a7a3ab3acf905357c6a3c90e88a5c6ccc10.exe"
1⤵
- Writes to the Master Boot Record (MBR)
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1700

\??\c:\1pe9l19u32t\Ueykwcj.exe
launch
2⤵
- 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
- Suspicious use of SetWindowsHookEx
PID:1732

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Bootkit

1

T1067

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

2

T1012

Peripheral Device Discovery

1

T1120

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

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Downloads

memory/1700-73-0x0000000010000000-0x0000000010021000-memory.dmp

Filesize
132KB

Download
memory/1700-55-0x0000000010000000-0x0000000010021000-memory.dmp

Filesize
132KB

Download
memory/1700-58-0x0000000010000000-0x0000000010021000-memory.dmp

Filesize
132KB

Download
memory/1700-57-0x0000000010000000-0x0000000010021000-memory.dmp

Filesize
132KB

Download
memory/1700-59-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1700-60-0x0000000010000000-0x0000000010021000-memory.dmp

Filesize
132KB

Download
memory/1700-61-0x0000000076171000-0x0000000076173000-memory.dmp

Filesize
8KB

Download
memory/1700-75-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1700-54-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1700-69-0x0000000000700000-0x000000000072D000-memory.dmp

Filesize
180KB

Download
memory/1700-70-0x0000000000700000-0x000000000072D000-memory.dmp

Filesize
180KB

Download
memory/1732-63-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1732-72-0x0000000010000000-0x0000000010021000-memory.dmp

Filesize
132KB

Download
memory/1732-71-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1732-74-0x0000000010000000-0x0000000010021000-memory.dmp

Filesize
132KB

Download
memory/1732-62-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads