4b4069bc462e10031185e70d3a9fad2a266e708e1f2d55d3890e7442b0e2344f

Analysis

max time kernel
166s
max time network
161s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-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
1536	CIJCLL.EXE

Modifies system executable filetype association 2 TTPs 2 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

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

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/5084-0-0x0000000000400000-0x0000000000470000-memory.dmp	upx
behavioral2/files/0x00070000000231e3-10.dat	upx
behavioral2/files/0x00080000000231cd-21.dat	upx
behavioral2/memory/1536-23-0x0000000000400000-0x0000000000470000-memory.dmp	upx
behavioral2/files/0x00080000000231cd-22.dat	upx
behavioral2/memory/5084-25-0x0000000000400000-0x0000000000470000-memory.dmp	upx
behavioral2/memory/1536-26-0x0000000000400000-0x0000000000470000-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\VZW.EXE = "C:\\odt\\VZW.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)	\??\P:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\M:	CIJCLL.EXE
File opened (read-only)	\??\T:	CIJCLL.EXE
File opened (read-only)	\??\M:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\G:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\I:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\L:	CIJCLL.EXE
File opened (read-only)	\??\E:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\K:	CIJCLL.EXE
File opened (read-only)	\??\V:	CIJCLL.EXE
File opened (read-only)	\??\I:	CIJCLL.EXE
File opened (read-only)	\??\V:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\N:	CIJCLL.EXE
File opened (read-only)	\??\Q:	CIJCLL.EXE
File opened (read-only)	\??\R:	CIJCLL.EXE
File opened (read-only)	\??\S:	CIJCLL.EXE
File opened (read-only)	\??\S:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\U:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\O:	CIJCLL.EXE
File opened (read-only)	\??\U:	CIJCLL.EXE
File opened (read-only)	\??\H:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\J:	CIJCLL.EXE
File opened (read-only)	\??\N:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\R:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\G:	CIJCLL.EXE
File opened (read-only)	\??\L:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\K:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\O:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\Q:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\T:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
File opened (read-only)	\??\E:	CIJCLL.EXE
File opened (read-only)	\??\H:	CIJCLL.EXE
File opened (read-only)	\??\P:	CIJCLL.EXE
File opened (read-only)	\??\J:	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe

Modifies registry class 18 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQfile\shell\open\command\ = "C:\\odt\\VZW.EXE \"%1\" %*"	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQ.file	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQ.file\shell	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\inffile\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\inffile\shell\open\command\ = "C:\\odt\\VZW.EXE %1"	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command	CIJCLL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQfile\shell	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQfile\shell\open\command\ = "C:\\Users\\JVVFFO.EXE \"%1\""	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQfile\shell\open\command\ = "C:\\odt\\VZW.EXE \"%1\""	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQ.file\shell\open\command	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQ.file\shell\open	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQfile	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\PerfLogs\\FRZQ.EXE \"%1\" %*"	CIJCLL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "C:\\PerfLogs\\JUNM.EXE %1"	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQ.file\shell\open\command\ = "C:\\PerfLogs\\JUNM.EXE %1"	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQfile\shell\open\command	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1536	CIJCLL.EXE

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5084 wrote to memory of 1536	5084	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe	82
PID 5084 wrote to memory of 1536	5084	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe	82
PID 5084 wrote to memory of 1536	5084	ea0cf0a560a8c73d543e3dc2c0be0746_JC.exe	82

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
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:5084
- C:\Users\CIJCLL.EXE
  C:\Users\CIJCLL.EXE
  2⤵
  - Executes dropped EXE
  - Modifies system executable filetype association
  - Enumerates connected drives
  - Modifies registry class
  - Suspicious behavior: GetForegroundWindowSpam
  PID:1536

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:\Users\CIJCLL.EXE

Filesize
476KB

MD5
b83c70f030d9271246ab6a100bcfa1f5

SHA1
d9d3ad58de981c3938eb054e58ec196d1cba311b

SHA256
161e7f76e676f7c513bb2c85e554365552db2f2976e00e08a375f0d77c9cf5ff

SHA512
af477a7af3e1faa001404df4e1859cc400cf4b607aebc0858247f601b1cea08f158fe0a5eca17a3d7b9389b55b5490471dc62fc79c4699776d93a12436c40e75

Download Submit
C:\Users\CIJCLL.EXE

Filesize
476KB

MD5
b83c70f030d9271246ab6a100bcfa1f5

SHA1
d9d3ad58de981c3938eb054e58ec196d1cba311b

SHA256
161e7f76e676f7c513bb2c85e554365552db2f2976e00e08a375f0d77c9cf5ff

SHA512
af477a7af3e1faa001404df4e1859cc400cf4b607aebc0858247f601b1cea08f158fe0a5eca17a3d7b9389b55b5490471dc62fc79c4699776d93a12436c40e75

Download Submit
C:\Users\JVVFFO.EXE

Filesize
476KB

MD5
b14c8609b01696a4de7342e0857a307f

SHA1
fc0620b09ae2097631fd03ba0362fa68c29bdc8a

SHA256
2e596f690de2a645a97c0ee25685883dc089ae15e05421f626bc71b720eb1b3d

SHA512
a1746c5f3c0e6f2edc60feedb9db227f358554ee6e3f8abb21a5587f762dc2536f8615e2741055ebcd33fc435ebb240ab35ea1f88d6bcacc66527f1ce0d7673b

Download Submit
\??\c:\filedebug

Filesize
194B

MD5
ea713fce91ba6f25147c321f5bbe2f36

SHA1
5de6d8529d340ebd0a86b3d8933dbc89e873e90f

SHA256
a982ffe5742b96d535e21af8834d001336855e4227446b0b59033bda62f53479

SHA512
967a27b9bd771889a0eaac85969cf6b94adf570763e898c5086631596e276d235490e03693c98be7422d99554061121199f1da818fe6ee65631b4fdaa315ab2b

Download Submit
memory/1536-23-0x0000000000400000-0x0000000000470000-memory.dmp

Filesize
448KB

Download
memory/1536-24-0x00000000020D0000-0x00000000020D1000-memory.dmp

Filesize
4KB

Download
memory/1536-26-0x0000000000400000-0x0000000000470000-memory.dmp

Filesize
448KB

Download
memory/5084-0-0x0000000000400000-0x0000000000470000-memory.dmp

Filesize
448KB

Download
memory/5084-5-0x0000000002200000-0x0000000002201000-memory.dmp

Filesize
4KB

Download
memory/5084-25-0x0000000000400000-0x0000000000470000-memory.dmp

Filesize
448KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads