426f5042fee24e43a40766d8eb7da99a1e0e373379af5b4dde0e355b7f5d9c8f

Resubmissions

09-03-2024 01:45

240309-b6vfrscb5v 5

07-03-2024 20:33

240307-zb7plsdc74 5

07-03-2024 20:30

240307-y95ggaea4y 5

07-03-2024 20:26

240307-y79cmsdh7z 5

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
07-03-2024 20:33

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General

Target

[EXTERNAL] 2024 Benefit Enrollment & Payroll Handbook Booklet Begins 07_03.eml
Size

39KB
MD5

533fd89353fbdada567744db2195f8f4
SHA1

7695f77553d87656ee7a79c80542f23b0b1a1640
SHA256

426f5042fee24e43a40766d8eb7da99a1e0e373379af5b4dde0e355b7f5d9c8f
SHA512

71696f0d45311d4bcc7be1b9a401f473fde4fe2bc9e67b1f1e5ea75c5be1e6854f181354c8aba3ca1e030d3e92dd57faacdba9baf524242706b1a0f1f31f2504
SSDEEP

768:8ZNoUDeMbPrKq7cTk//IYmHilbNpksVSqo/5LGESjcVV:8z3brrLcI3IYmSUL/lHSjK

Score

5^/10

Malware Config

Signatures

Drops file in System32 directory 14 IoCs

Processes:

OUTLOOK.EXE

description	ioc	process
File created	C:\Windows\system32\perfc010.dat	OUTLOOK.EXE
File created	C:\Windows\SysWOW64\PerfStringBackup.TMP	OUTLOOK.EXE
File created	C:\Windows\system32\perfc007.dat	OUTLOOK.EXE
File created	C:\Windows\system32\perfh007.dat	OUTLOOK.EXE
File created	C:\Windows\system32\perfh009.dat	OUTLOOK.EXE
File created	C:\Windows\system32\perfh00A.dat	OUTLOOK.EXE
File opened for modification	C:\Windows\SysWOW64\PerfStringBackup.INI	OUTLOOK.EXE
File created	C:\Windows\system32\perfh00C.dat	OUTLOOK.EXE
File created	C:\Windows\system32\perfc00A.dat	OUTLOOK.EXE
File created	C:\Windows\system32\perfc00C.dat	OUTLOOK.EXE
File created	C:\Windows\system32\perfh010.dat	OUTLOOK.EXE
File created	C:\Windows\system32\perfc009.dat	OUTLOOK.EXE
File created	C:\Windows\system32\perfc011.dat	OUTLOOK.EXE
File created	C:\Windows\system32\perfh011.dat	OUTLOOK.EXE

Drops file in Windows directory 3 IoCs

Processes:

OUTLOOK.EXE

description	ioc	process
File created	C:\Windows\inf\Outlook\outlperf.h	OUTLOOK.EXE
File opened for modification	C:\Windows\inf\Outlook\outlperf.h	OUTLOOK.EXE
File created	C:\Windows\inf\Outlook\0009\outlperf.ini	OUTLOOK.EXE

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

Processes:

OUTLOOK.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\MenuExt	OUTLOOK.EXE
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	OUTLOOK.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	OUTLOOK.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	OUTLOOK.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	OUTLOOK.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	OUTLOOK.EXE
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	OUTLOOK.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	OUTLOOK.EXE
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\Toolbar	OUTLOOK.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

OUTLOOK.EXE

pid process

1740 OUTLOOK.EXE
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

OUTLOOK.EXE

pid process

1740 OUTLOOK.EXE

pid	process
1740	OUTLOOK.EXE

pid	process
1740	OUTLOOK.EXE

C:\PROGRA~2\MICROS~1\Office14\OUTLOOK.EXE
C:\PROGRA~2\MICROS~1\Office14\OUTLOOK.EXE /eml "C:\Users\Admin\AppData\Local\Temp\[EXTERNAL] 2024 Benefit Enrollment & Payroll Handbook Booklet Begins 07_03.eml"
1⤵
- Drops file in System32 directory
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: GetForegroundWindowSpam
PID:1740

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\FORMS\FRMCACHE.DAT

Filesize
235KB

MD5
73c6704e313437379e697fe936e91d36

SHA1
0914be86c2b6430b35da1f0a7fa53fb190bac808

SHA256
492547103b5f85271c9a6fe307226ecf7c8ac9ba06845dbe0d46dacf90e2b5bd

SHA512
f9ab686731a9b450abedc67a0ffc10115eb11a7aa230d87be36656952af83974c3de592dab750b949f01081dfd475a7ec5d761bf4b87329e9bf3aca00ee777b6

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Outlook\mapisvc.inf

Filesize
1KB

MD5
48dd6cae43ce26b992c35799fcd76898

SHA1
8e600544df0250da7d634599ce6ee50da11c0355

SHA256
7bfe1f3691e2b4fb4d61fbf5e9f7782fbe49da1342dbd32201c2cc8e540dbd1a

SHA512
c1b9322c900f5be0ad166ddcfec9146918fb2589a17607d61490fd816602123f3af310a3e6d98a37d16000d4acbbcd599236f03c3c7f9376aeba7a489b329f31

Download Submit
memory/1740-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1740-1-0x000000007398D000-0x0000000073998000-memory.dmp

Filesize
44KB

Download
memory/1740-124-0x000000007398D000-0x0000000073998000-memory.dmp

Filesize
44KB

Download