4b4069bc462e10031185e70d3a9fad2a266e708e1f2d55d3890e7442b0e2344f

Analysis

max time kernel
142s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
18/09/2023, 19:07

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General

Target

ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
Size

476KB
MD5

ea0cf0a560a8c73d543e3dc2c0be0746
SHA1

c680dfd744d3537844193b611777c8f5ba5ac387
SHA256

4b4069bc462e10031185e70d3a9fad2a266e708e1f2d55d3890e7442b0e2344f
SHA512

305e5fe3028598ce67a451526866d6e1fcd85da4acdb697a38914abce3b44e3f1787c82b49cc2bcfaddf920b5e15f413d287be9e5a9993f69a686b11134d7a4d
SSDEEP

6144:WdspDeDrxkg/vrMuJIgwhEFHyOrJcX/Pgqwzm5IzkWjS4e4azExBKO1t4Kb70Nqr:s8kxNhOZElO5kkWjhD4AI

Score

7^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1756	QWTMCVZ.EXE

Modifies system executable filetype association 2 TTPs 2 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\RJGFYEV.EXE \"%1\" %*"	QWTMCVZ.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command	QWTMCVZ.EXE

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1048-0-0x0000000000400000-0x0000000000470000-memory.dmp	upx
behavioral2/files/0x00080000000231bb-10.dat	upx
behavioral2/files/0x000f0000000217ec-21.dat	upx
behavioral2/files/0x000f0000000217ec-22.dat	upx
behavioral2/memory/1048-24-0x0000000000400000-0x0000000000470000-memory.dmp	upx
behavioral2/memory/1756-25-0x0000000000400000-0x0000000000470000-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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\XKEPWYG.EXE = "C:\\Windows\\XKEPWYG.EXE"	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe

Enumerates connected drives 3 TTPs 34 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:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\L:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\T:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\K:	QWTMCVZ.EXE
File opened (read-only)	\??\T:	QWTMCVZ.EXE
File opened (read-only)	\??\Q:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\R:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\I:	QWTMCVZ.EXE
File opened (read-only)	\??\E:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\H:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\J:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\G:	QWTMCVZ.EXE
File opened (read-only)	\??\H:	QWTMCVZ.EXE
File opened (read-only)	\??\U:	QWTMCVZ.EXE
File opened (read-only)	\??\V:	QWTMCVZ.EXE
File opened (read-only)	\??\I:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\N:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\P:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\J:	QWTMCVZ.EXE
File opened (read-only)	\??\R:	QWTMCVZ.EXE
File opened (read-only)	\??\S:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\V:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\O:	QWTMCVZ.EXE
File opened (read-only)	\??\S:	QWTMCVZ.EXE
File opened (read-only)	\??\O:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\M:	QWTMCVZ.EXE
File opened (read-only)	\??\N:	QWTMCVZ.EXE
File opened (read-only)	\??\Q:	QWTMCVZ.EXE
File opened (read-only)	\??\E:	QWTMCVZ.EXE
File opened (read-only)	\??\P:	QWTMCVZ.EXE
File opened (read-only)	\??\G:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\M:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\U:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\L:	QWTMCVZ.EXE

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	C:\Program Files\XIWW.EXE	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened for modification	C:\Program Files\XIWW.EXE	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File created	C:\Program Files\PYBF.EXE	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe

Drops file in Windows directory 6 IoCs

description	ioc	Process
File created	C:\Windows\QWTMCVZ.EXE	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File created	C:\Windows\EUAGUVS.EXE	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened for modification	C:\Windows\EUAGUVS.EXE	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File created	C:\Windows\XKEPWYG.EXE	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened for modification	C:\Windows\XKEPWYG.EXE	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File created	C:\Windows\RJGFYEV.EXE	QWTMCVZ.EXE

Modifies registry class 18 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQ.file\shell\open\command	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQ.file	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQfile\shell\open\command	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQfile\shell\open	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\RJGFYEV.EXE \"%1\" %*"	QWTMCVZ.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "C:\\Program Files\\XIWW.EXE %1"	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQ.file\shell	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQfile\shell	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\inffile\shell\open\command	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\inffile\shell\open\command\ = "C:\\Windows\\XKEPWYG.EXE %1"	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command	QWTMCVZ.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQ.file\shell\open	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQ.file\shell\open\command\ = "C:\\Windows\\EUAGUVS.EXE %1"	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQfile	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQfile\shell\open\command\ = "C:\\Windows\\XKEPWYG.EXE \"%1\" %*"	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQfile\shell\open\command\ = "C:\\Windows\\EUAGUVS.EXE \"%1\""	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQfile\shell\open\command\ = "C:\\Program Files\\PYBF.EXE \"%1\""	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1756	QWTMCVZ.EXE

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1048 wrote to memory of 1756	1048	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe	81
PID 1048 wrote to memory of 1756	1048	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe	81
PID 1048 wrote to memory of 1756	1048	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe	81

C:\Users\Admin\AppData\Local\Temp\ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
"C:\Users\Admin\AppData\Local\Temp\ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe"
1⤵
- Adds Run key to start application
- Enumerates connected drives
- Drops file in Program Files directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1048
- C:\Windows\QWTMCVZ.EXE
  C:\Windows\QWTMCVZ.EXE
  2⤵
  - Executes dropped EXE
  - Modifies system executable filetype association
  - Enumerates connected drives
  - Drops file in Windows directory
  - Modifies registry class
  - Suspicious behavior: GetForegroundWindowSpam
  PID:1756

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

Event Triggered Execution

T1546

Change Default File Association

T1546.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Event Triggered Execution

T1546

Change Default File Association

T1546.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\EUAGUVS.EXE

Filesize
476KB

MD5
446804d2577dccfa30f86d4db53087ef

SHA1
19d9f3f12ac5b363d62402d917231a217bdd07e5

SHA256
398ea945409860df9f9a0e08bdac08cbf41ea60d0524b0d9562ca3dfd0e3a7a0

SHA512
895806b375f28574eb46ede842203e78a394e61e7790251fdc8058e07a79a16c2497abaefc4c57cc36d8bc70611726f249b56f39a52cfbc51bae8ec0b616a7f0

Download Submit
C:\Windows\QWTMCVZ.EXE

Filesize
476KB

MD5
7e9ef04c9d30268c059785e1838c994d

SHA1
1156e4cf26a76e6349cc20159e29c58c9d7ebdee

SHA256
dca4dda4eafb0aa878dd72b302713ea1cdfe1e6eb50afc322b14cc8eca5669cb

SHA512
0eb053a0e0f2bdd726a9674193faa1219eb8c8aa121aebef74a55e48e0e36975005f8f1fcdd132d3e92f3e5c4341df893084a0650c9b48ed60672058d8960f15

Download Submit
C:\Windows\QWTMCVZ.EXE

Filesize
476KB

MD5
7e9ef04c9d30268c059785e1838c994d

SHA1
1156e4cf26a76e6349cc20159e29c58c9d7ebdee

SHA256
dca4dda4eafb0aa878dd72b302713ea1cdfe1e6eb50afc322b14cc8eca5669cb

SHA512
0eb053a0e0f2bdd726a9674193faa1219eb8c8aa121aebef74a55e48e0e36975005f8f1fcdd132d3e92f3e5c4341df893084a0650c9b48ed60672058d8960f15

Download Submit
\??\c:\filedebug

Filesize
249B

MD5
8444d63139d754d78dbd62d398df7fe7

SHA1
f0bfc90e5a6ea44a766765a6f84b5c7919ca5fa2

SHA256
e17dd38270b68198ebfe2af8657ae1805ecdbae805fc142d673318a49cd13112

SHA512
176ac48a05669ee45815f70ac2fa5dd5b43c82e3a25c4538a50606b2288ab2f72475649cc8d7ffec7f193c1f048e0ce76c0d3ca4f57b5404d69d9fe9018d48e5

Download Submit
memory/1048-0-0x0000000000400000-0x0000000000470000-memory.dmp

Filesize
448KB

Download
memory/1048-1-0x0000000002200000-0x0000000002201000-memory.dmp

Filesize
4KB

Download
memory/1048-24-0x0000000000400000-0x0000000000470000-memory.dmp

Filesize
448KB

Download
memory/1756-23-0x0000000000520000-0x0000000000521000-memory.dmp

Filesize
4KB

Download
memory/1756-25-0x0000000000400000-0x0000000000470000-memory.dmp

Filesize
448KB

Download
memory/1756-26-0x0000000000520000-0x0000000000521000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads