68ff6814dafe9fd6bd25e9b4c2f35417d3b6574ae2fecd069163e1d4c65b5c73

General

Target

0002455510da982d0474ed8aaf5f7756_JC.exe
Size

420KB
MD5

0002455510da982d0474ed8aaf5f7756
SHA1

56c9d904830c86e6a830b88d5e3e254fc7c3fb76
SHA256

68ff6814dafe9fd6bd25e9b4c2f35417d3b6574ae2fecd069163e1d4c65b5c73
SHA512

a45cc05a91c1a3e57d584b5c8cd535fe65773be5e41d85659b0b28d2cc0c0475dfa16500ccbde1d41cebf394f1f07c92ec00816d7229571ffa04f3d49d5805c8
SSDEEP

6144:gdspDeDrxkg/vrMuJIgwhEFHyOrJcX/Pgqwzm5IzkWjS4e4azExBKO1t4Kb70Nqx:G8kxNhOZElO5kkWjhD4AF

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2640	VPCY.EXE

Modifies system executable filetype association 2 TTPs 3 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command	0002455510da982d0474ed8aaf5f7756_JC.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\System Volume Information\\YKLWMR.EXE \"%1\" %*"	0002455510da982d0474ed8aaf5f7756_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command	VPCY.EXE

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\BFQ.EXE = "C:\\System Volume Information\\YKLWMR.EXE"	0002455510da982d0474ed8aaf5f7756_JC.exe

Enumerates connected drives 3 TTPs 17 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:	0002455510da982d0474ed8aaf5f7756_JC.exe
File opened (read-only)	\??\Q:	0002455510da982d0474ed8aaf5f7756_JC.exe
File opened (read-only)	\??\S:	0002455510da982d0474ed8aaf5f7756_JC.exe
File opened (read-only)	\??\K:	0002455510da982d0474ed8aaf5f7756_JC.exe
File opened (read-only)	\??\R:	0002455510da982d0474ed8aaf5f7756_JC.exe
File opened (read-only)	\??\T:	0002455510da982d0474ed8aaf5f7756_JC.exe
File opened (read-only)	\??\E:	0002455510da982d0474ed8aaf5f7756_JC.exe
File opened (read-only)	\??\H:	0002455510da982d0474ed8aaf5f7756_JC.exe
File opened (read-only)	\??\M:	0002455510da982d0474ed8aaf5f7756_JC.exe
File opened (read-only)	\??\O:	0002455510da982d0474ed8aaf5f7756_JC.exe
File opened (read-only)	\??\P:	0002455510da982d0474ed8aaf5f7756_JC.exe
File opened (read-only)	\??\U:	0002455510da982d0474ed8aaf5f7756_JC.exe
File opened (read-only)	\??\V:	0002455510da982d0474ed8aaf5f7756_JC.exe
File opened (read-only)	\??\G:	0002455510da982d0474ed8aaf5f7756_JC.exe
File opened (read-only)	\??\J:	0002455510da982d0474ed8aaf5f7756_JC.exe
File opened (read-only)	\??\L:	0002455510da982d0474ed8aaf5f7756_JC.exe
File opened (read-only)	\??\N:	0002455510da982d0474ed8aaf5f7756_JC.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\VPCY.EXE	0002455510da982d0474ed8aaf5f7756_JC.exe
File created	C:\Program Files\VPCY.EXE	0002455510da982d0474ed8aaf5f7756_JC.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\scrfile\shell\open\command	0002455510da982d0474ed8aaf5f7756_JC.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\scrfile\shell\open\command\ = "C:\\Users\\GSQAPH.EXE \"%1\""	0002455510da982d0474ed8aaf5f7756_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\chm.file	0002455510da982d0474ed8aaf5f7756_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\chm.file\shell	0002455510da982d0474ed8aaf5f7756_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\chm.file\shell\open\command	0002455510da982d0474ed8aaf5f7756_JC.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\System Volume Information\\YKLWMR.EXE \"%1\" %*"	0002455510da982d0474ed8aaf5f7756_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\regfile\shell\open\command	0002455510da982d0474ed8aaf5f7756_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command	0002455510da982d0474ed8aaf5f7756_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command	0002455510da982d0474ed8aaf5f7756_JC.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "C:\\$Recycle.Bin\\YTC.EXE %1"	0002455510da982d0474ed8aaf5f7756_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\inifile\shell\open\command	0002455510da982d0474ed8aaf5f7756_JC.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\inifile\shell\open\command\ = "C:\\System Volume Information\\YKLWMR.EXE %1"	0002455510da982d0474ed8aaf5f7756_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command	VPCY.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\chm.file\shell\open	0002455510da982d0474ed8aaf5f7756_JC.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\regfile\shell\open\command\ = "C:\\System Volume Information\\YKLWMR.EXE \"%1\""	0002455510da982d0474ed8aaf5f7756_JC.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2640	VPCY.EXE

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2272 wrote to memory of 2640	2272	0002455510da982d0474ed8aaf5f7756_JC.exe	90
PID 2272 wrote to memory of 2640	2272	0002455510da982d0474ed8aaf5f7756_JC.exe	90
PID 2272 wrote to memory of 2640	2272	0002455510da982d0474ed8aaf5f7756_JC.exe	90

C:\Users\Admin\AppData\Local\Temp\0002455510da982d0474ed8aaf5f7756_JC.exe
"C:\Users\Admin\AppData\Local\Temp\0002455510da982d0474ed8aaf5f7756_JC.exe"
1⤵
- Modifies system executable filetype association
- Adds Run key to start application
- Enumerates connected drives
- Drops file in Program Files directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2272
- C:\Program Files\VPCY.EXE
  "C:\Program Files\VPCY.EXE"
  2⤵
  - Executes dropped EXE
  - Modifies system executable filetype association
  - Modifies registry class
  - Suspicious behavior: GetForegroundWindowSpam
  PID:2640

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Event Triggered Execution

1

T1546

Change Default File Association

1

T1546.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Event Triggered Execution

1

T1546

Change Default File Association

1

T1546.001

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Program Files\VPCY.EXE

Filesize
421KB

MD5
eff7e1843ce9a5c6c16df71c3ec24a45

SHA1
ca99bf9be498609032743f315d7332216309cc4b

SHA256
7e638e4f4bd190afec90ae0be9fce3fb9c1f25443df219aecb10df70e5f62f6b

SHA512
6e82d1044c3449e9bb6e1386e85db89dbf46be2335f5f82629d0cf41a38d3e336fd61d2652065f41e31a3d5f5f5b6eedd8225a40ba9f6792bf4e9fa7a29afde0

Download Submit
C:\Program Files\VPCY.EXE

Filesize
421KB

MD5
eff7e1843ce9a5c6c16df71c3ec24a45

SHA1
ca99bf9be498609032743f315d7332216309cc4b

SHA256
7e638e4f4bd190afec90ae0be9fce3fb9c1f25443df219aecb10df70e5f62f6b

SHA512
6e82d1044c3449e9bb6e1386e85db89dbf46be2335f5f82629d0cf41a38d3e336fd61d2652065f41e31a3d5f5f5b6eedd8225a40ba9f6792bf4e9fa7a29afde0

Download Submit
C:\Users\GSQAPH.EXE

Filesize
421KB

MD5
25498238bb2c8915f63c50fa4f7c448c

SHA1
c947608aea232f99a6a75b8b7772b3e72a9a108b

SHA256
df753e898fa55cb8caf0887589230ba8226206b9aa89197bde4ae13f2be1f08c

SHA512
882db70dddd0ba4d3c2215d4eaf52171b0ebd046fbd4c2d1bb28319c975ffa25ee3e182fb9fa9aa6739657ff7fba659885946655d874cb9912f225ee0fb67ff6

Download Submit
C:\filedebug

Filesize
281B

MD5
81adfc46b1e284128ab9b8c2071466f0

SHA1
4c2e291d56bd79612f39a3285f29591a3f9a47e1

SHA256
e8e3e0b6ed3a9ca972594c32066f076307f0a868572d31f71c71edb304d76fd7

SHA512
97ab16e04c5b86fec4015dd4fa10845dc151b7f93ec0675e74e4b457808fa4b2565fc24248a74064f9fa11a2ee4b9f4a1695a811ce5984b84fd33433ab954978

Download Submit
memory/2272-0-0x0000000000620000-0x0000000000621000-memory.dmp

Filesize
4KB

Download
memory/2640-18-0x00000000021C0000-0x00000000021C1000-memory.dmp

Filesize
4KB

Download
memory/2640-19-0x00000000021C0000-0x00000000021C1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads