4b4069bc462e10031185e70d3a9fad2a266e708e1f2d55d3890e7442b0e2344f

Analysis

max time kernel
119s
max time network
122s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
12/10/2023, 15:02

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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
2556	OYS.EXE

Loads dropped DLL 2 IoCs

pid	Process
2252	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
2252	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2252-0-0x0000000000400000-0x0000000000470000-memory.dmp	upx
behavioral1/files/0x0007000000014b5f-11.dat	upx
behavioral1/files/0x000900000000e621-19.dat	upx
behavioral1/files/0x000900000000e621-21.dat	upx
behavioral1/files/0x000900000000e621-26.dat	upx
behavioral1/memory/2556-27-0x0000000000400000-0x0000000000470000-memory.dmp	upx
behavioral1/files/0x000900000000e621-29.dat	upx
behavioral1/memory/2252-31-0x0000000000400000-0x0000000000470000-memory.dmp	upx
behavioral1/memory/2556-30-0x0000000000400000-0x0000000000470000-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\SYUW.EXE = "C:\\Program Files\\SYUW.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)	\??\I:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\O:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\T:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\E:	OYS.EXE
File opened (read-only)	\??\T:	OYS.EXE
File opened (read-only)	\??\G:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\H:	OYS.EXE
File opened (read-only)	\??\K:	OYS.EXE
File opened (read-only)	\??\L:	OYS.EXE
File opened (read-only)	\??\N:	OYS.EXE
File opened (read-only)	\??\P:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\R:	OYS.EXE
File opened (read-only)	\??\M:	OYS.EXE
File opened (read-only)	\??\I:	OYS.EXE
File opened (read-only)	\??\J:	OYS.EXE
File opened (read-only)	\??\S:	OYS.EXE
File opened (read-only)	\??\V:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\Q:	OYS.EXE
File opened (read-only)	\??\G:	OYS.EXE
File opened (read-only)	\??\J:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\S:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\P:	OYS.EXE
File opened (read-only)	\??\V:	OYS.EXE
File opened (read-only)	\??\E:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\M:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\N:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\Q:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\U:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\O:	OYS.EXE
File opened (read-only)	\??\K:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\L:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\R:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\U:	OYS.EXE
File opened (read-only)	\??\H:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File created	C:\Program Files\EANC.EXE	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File created	C:\Program Files\SYUW.EXE	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File created	C:\Program Files (x86)\ZGZAJ.EXE	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File created	C:\Program Files\SWEJL.EXE	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\LKAZCHG.EXE	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File created	C:\Windows\ZIHTUHA.EXE	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File created	C:\Windows\LMQMXOB.EXE	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe

Modifies registry class 32 IoCs

description	ioc	Process
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:\\Program Files\\EANC.EXE %1"	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQfile\shell\open	ea0cf0a560a8c73d543e3dc2c0be0746_JC.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\\LKAZCHG.EXE %1"	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile	OYS.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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQfile\shell\open\command\ = "C:\\Windows\\ZIHTUHA.EXE \"%1\""	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command	OYS.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQfile\shell\open	OYS.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQ.file\shell\open\command	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQfile	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQfile\shell	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQ.file\shell	OYS.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\inffile\shell\open\command	OYS.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\inffile\shell\open	OYS.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "C:\\Program Files (x86)\\ZGZAJ.EXE %1"	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell	OYS.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQfile\shell\open\command	OYS.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQfile\shell\open\command\ = "C:\\Program Files\\SWEJL.EXE \"%1\""	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQ.file\shell\open	OYS.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQfile\shell	OYS.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQ.file\shell	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQ.file\shell\open\command	OYS.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQfile	OYS.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\inffile	OYS.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQfile\shell\open\command\ = "C:\\Windows\\LMQMXOB.EXE \"%1\" %*"	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open	OYS.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQ.file	OYS.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\inffile\shell	OYS.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2252 wrote to memory of 2556	2252	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe	28
PID 2252 wrote to memory of 2556	2252	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe	28
PID 2252 wrote to memory of 2556	2252	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe	28
PID 2252 wrote to memory of 2556	2252	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
"C:\Users\Admin\AppData\Local\Temp\ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe"
1⤵
- Loads dropped DLL
- 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:2252
- C:\$Recycle.Bin\OYS.EXE
  C:\$Recycle.Bin\OYS.EXE
  2⤵
  - Executes dropped EXE
  - Enumerates connected drives
  - Modifies registry class
  PID:2556

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

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

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

Replay Monitor

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Downloads

C:\$Recycle.Bin\OYS.EXE

Filesize
476KB

MD5
b03f51d26cf9ff70e6184e402b38bebf

SHA1
20e27b69c8c716d891bf440fd1302933b8304d2d

SHA256
468017ee498c1c5e08123ff7b5414f248e81680ae597c4dc293f1033c31d49b2

SHA512
6cdcd41521b4b1b8601eaeb6ecc351ca239b7fd34cf818abed5b3223fdfa6d3b52646a5aaf6436a6bd7769aa3e3534da3c3af4a7e560363e4b2b19906b927bd9

Download Submit
C:\$Recycle.Bin\OYS.EXE

Filesize
476KB

MD5
b03f51d26cf9ff70e6184e402b38bebf

SHA1
20e27b69c8c716d891bf440fd1302933b8304d2d

SHA256
468017ee498c1c5e08123ff7b5414f248e81680ae597c4dc293f1033c31d49b2

SHA512
6cdcd41521b4b1b8601eaeb6ecc351ca239b7fd34cf818abed5b3223fdfa6d3b52646a5aaf6436a6bd7769aa3e3534da3c3af4a7e560363e4b2b19906b927bd9

Download Submit
C:\Windows\ZIHTUHA.EXE

Filesize
477KB

MD5
8f476ed5a93c84992f0391202617e265

SHA1
4be0c6f9145ecedfc2c778e5015b2490767d2793

SHA256
5477be09f58acf0d4848a5e382a3f1ac8a9513a46625a93f4e54631c4486d88a

SHA512
e646bf20c3251a5fb0f5a4ebae2894baa5a7e499c39d0be30f0bc891bb6e8e7c5ea0b04ca1a9420d429765644588e719189bf6873401aacb7cd7c643ee6ebc2e

Download Submit
\$Recycle.Bin\OYS.EXE

Filesize
476KB

MD5
b03f51d26cf9ff70e6184e402b38bebf

SHA1
20e27b69c8c716d891bf440fd1302933b8304d2d

SHA256
468017ee498c1c5e08123ff7b5414f248e81680ae597c4dc293f1033c31d49b2

SHA512
6cdcd41521b4b1b8601eaeb6ecc351ca239b7fd34cf818abed5b3223fdfa6d3b52646a5aaf6436a6bd7769aa3e3534da3c3af4a7e560363e4b2b19906b927bd9

Download Submit
\$Recycle.Bin\OYS.EXE

Filesize
476KB

MD5
b03f51d26cf9ff70e6184e402b38bebf

SHA1
20e27b69c8c716d891bf440fd1302933b8304d2d

SHA256
468017ee498c1c5e08123ff7b5414f248e81680ae597c4dc293f1033c31d49b2

SHA512
6cdcd41521b4b1b8601eaeb6ecc351ca239b7fd34cf818abed5b3223fdfa6d3b52646a5aaf6436a6bd7769aa3e3534da3c3af4a7e560363e4b2b19906b927bd9

Download Submit
memory/2252-0-0x0000000000400000-0x0000000000470000-memory.dmp

Filesize
448KB

Download
memory/2252-1-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download
memory/2252-25-0x0000000000A50000-0x0000000000AC0000-memory.dmp

Filesize
448KB

Download
memory/2252-31-0x0000000000400000-0x0000000000470000-memory.dmp

Filesize
448KB

Download
memory/2556-27-0x0000000000400000-0x0000000000470000-memory.dmp

Filesize
448KB

Download
memory/2556-28-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2556-30-0x0000000000400000-0x0000000000470000-memory.dmp

Filesize
448KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads