101c584643000fd6297e44ae4146ae61519202a6d1995c34336932587891b7e9

Analysis

max time kernel
144s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
29/05/2024, 18:48

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General

Target

101c584643000fd6297e44ae4146ae61519202a6d1995c34336932587891b7e9.exe
Size

74KB
MD5

97603d02d3cf4b6b98dc12c1da54d3ba
SHA1

48ddccdf864162a8bdec566c96a2925413e83266
SHA256

101c584643000fd6297e44ae4146ae61519202a6d1995c34336932587891b7e9
SHA512

89bf825c94fdfc197cccef041335d58bbf085a1882656121206b0fa9e2a664738468e16b7a282b776d9e790cdf0daefd68490dc93dfe136fc4cede82c766103f
SSDEEP

1536:6LxJJlguY/NbvWU2VkWlVvtlqDyKJR40AEEog:cc/R+U23vtlPR0pA

Score

9^/10

bootkit persistence spyware stealer upx

Malware Config

Signatures

Detects executables containing base64 encoded User Agent 5 IoCs

resource	yara_rule
behavioral1/memory/2880-19-0x0000000010000000-0x0000000010024000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/2880-23-0x0000000010000000-0x0000000010024000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/2880-24-0x0000000010000000-0x0000000010024000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/2880-25-0x0000000010000000-0x0000000010024000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/2880-27-0x0000000010000000-0x0000000010024000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 8 IoCs

resource	yara_rule
behavioral1/memory/2980-12-0x0000000000400000-0x0000000000417000-memory.dmp	UPX
behavioral1/files/0x0009000000014aec-13.dat	UPX
behavioral1/memory/2880-18-0x0000000010000000-0x0000000010024000-memory.dmp	UPX
behavioral1/memory/2880-19-0x0000000010000000-0x0000000010024000-memory.dmp	UPX
behavioral1/memory/2880-23-0x0000000010000000-0x0000000010024000-memory.dmp	UPX
behavioral1/memory/2880-24-0x0000000010000000-0x0000000010024000-memory.dmp	UPX
behavioral1/memory/2880-25-0x0000000010000000-0x0000000010024000-memory.dmp	UPX
behavioral1/memory/2880-27-0x0000000010000000-0x0000000010024000-memory.dmp	UPX

Blocklisted process makes network request 10 IoCs

flow	pid	Process
4	2880	rundll32.exe
5	2880	rundll32.exe
8	2880	rundll32.exe
9	2880	rundll32.exe
10	2880	rundll32.exe
13	2880	rundll32.exe
14	2880	rundll32.exe
15	2880	rundll32.exe
17	2880	rundll32.exe
18	2880	rundll32.exe

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x0009000000014aec-13.dat	acprotect

Deletes itself 1 IoCs

pid	Process
2980	qjrxms.exe

Executes dropped EXE 1 IoCs

pid	Process
2980	qjrxms.exe

Loads dropped DLL 4 IoCs

pid	Process
2880	rundll32.exe
2880	rundll32.exe
2880	rundll32.exe
2880	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

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x0009000000014aec-13.dat	upx
behavioral1/memory/2880-18-0x0000000010000000-0x0000000010024000-memory.dmp	upx
behavioral1/memory/2880-19-0x0000000010000000-0x0000000010024000-memory.dmp	upx
behavioral1/memory/2880-23-0x0000000010000000-0x0000000010024000-memory.dmp	upx
behavioral1/memory/2880-24-0x0000000010000000-0x0000000010024000-memory.dmp	upx
behavioral1/memory/2880-25-0x0000000010000000-0x0000000010024000-memory.dmp	upx
behavioral1/memory/2880-27-0x0000000010000000-0x0000000010024000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\kiextoypx\\frtigox.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

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

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

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

pid	Process
2308	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2880	rundll32.exe
2880	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2880	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1968	101c584643000fd6297e44ae4146ae61519202a6d1995c34336932587891b7e9.exe
2980	qjrxms.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1968 wrote to memory of 2196	1968	101c584643000fd6297e44ae4146ae61519202a6d1995c34336932587891b7e9.exe	28
PID 1968 wrote to memory of 2196	1968	101c584643000fd6297e44ae4146ae61519202a6d1995c34336932587891b7e9.exe	28
PID 1968 wrote to memory of 2196	1968	101c584643000fd6297e44ae4146ae61519202a6d1995c34336932587891b7e9.exe	28
PID 1968 wrote to memory of 2196	1968	101c584643000fd6297e44ae4146ae61519202a6d1995c34336932587891b7e9.exe	28
PID 2196 wrote to memory of 2308	2196	cmd.exe	30
PID 2196 wrote to memory of 2308	2196	cmd.exe	30
PID 2196 wrote to memory of 2308	2196	cmd.exe	30
PID 2196 wrote to memory of 2308	2196	cmd.exe	30
PID 2196 wrote to memory of 2980	2196	cmd.exe	31
PID 2196 wrote to memory of 2980	2196	cmd.exe	31
PID 2196 wrote to memory of 2980	2196	cmd.exe	31
PID 2196 wrote to memory of 2980	2196	cmd.exe	31
PID 2980 wrote to memory of 2880	2980	qjrxms.exe	32
PID 2980 wrote to memory of 2880	2980	qjrxms.exe	32
PID 2980 wrote to memory of 2880	2980	qjrxms.exe	32
PID 2980 wrote to memory of 2880	2980	qjrxms.exe	32
PID 2980 wrote to memory of 2880	2980	qjrxms.exe	32
PID 2980 wrote to memory of 2880	2980	qjrxms.exe	32
PID 2980 wrote to memory of 2880	2980	qjrxms.exe	32

C:\Users\Admin\AppData\Local\Temp\101c584643000fd6297e44ae4146ae61519202a6d1995c34336932587891b7e9.exe
"C:\Users\Admin\AppData\Local\Temp\101c584643000fd6297e44ae4146ae61519202a6d1995c34336932587891b7e9.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1968
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\qjrxms.exe "C:\Users\Admin\AppData\Local\Temp\101c584643000fd6297e44ae4146ae61519202a6d1995c34336932587891b7e9.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2196
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 2
    3⤵
    - Runs ping.exe
    PID:2308
- - \??\c:\qjrxms.exe
    c:\qjrxms.exe "C:\Users\Admin\AppData\Local\Temp\101c584643000fd6297e44ae4146ae61519202a6d1995c34336932587891b7e9.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2980
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\kiextoypx\frtigox.dll",init c:\qjrxms.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:2880

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\??\c:\kiextoypx\frtigox.dll

Filesize
46KB

MD5
42fe886bcb6460f7c2a46e21ecac5da6

SHA1
7d9a1c9fe17121cf61444da965f29e974a95ede2

SHA256
b6bc7902da0250f6ca920b35b222f6a0fe62102caf05d2a1722c4d3b225a0a9e

SHA512
3d1a7dc1d9ca8a4376302ba20df584ad59b98e0d3b18b06b22d7f5a455833ce124e412fc1922a3b704dcbafa31987cda3115c9a71dd6299683502cebae33567c

Download Submit
\??\c:\qjrxms.exe

Filesize
74KB

MD5
cde6811e5f9d0e0e63cc1261d0968ce0

SHA1
72937f4006d538c71208fcad977b0d3d4892e4ea

SHA256
5dc0713dbdcdb4de2dc87b2c6a2f2f538438450dcdc31de27662d33c0536f89c

SHA512
0c78988147fe89bccfeca304100b08b3fddb96cc2f002a9683a94ff02c875bf707e76351dac5670e41d2551f3f028d7e0521b1a5f1552692bb33dacfb5f1bcfc

Download Submit
memory/1968-1-0x0000000000240000-0x0000000000242000-memory.dmp

Filesize
8KB

Download
memory/1968-3-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1968-0-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2196-5-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2196-7-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2880-23-0x0000000010000000-0x0000000010024000-memory.dmp

Filesize
144KB

Download
memory/2880-18-0x0000000010000000-0x0000000010024000-memory.dmp

Filesize
144KB

Download
memory/2880-19-0x0000000010000000-0x0000000010024000-memory.dmp

Filesize
144KB

Download
memory/2880-24-0x0000000010000000-0x0000000010024000-memory.dmp

Filesize
144KB

Download
memory/2880-25-0x0000000010000000-0x0000000010024000-memory.dmp

Filesize
144KB

Download
memory/2880-27-0x0000000010000000-0x0000000010024000-memory.dmp

Filesize
144KB

Download
memory/2980-12-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2980-9-0x00000000002C0000-0x00000000002C2000-memory.dmp

Filesize
8KB

Download
memory/2980-8-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download