crimsonrat | b29691ac40b8bbb12b13e84641ad20583d1387ca356850aa7b5e76b0f6c76806

Analysis

max time kernel
144s
max time network
126s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
17-07-2024 03:47

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Report Analysis Logs

General

Target

5158c5c17862225a86c8a4f36f054ae2_JaffaCakes118.xls
Size

428KB
MD5

5158c5c17862225a86c8a4f36f054ae2
SHA1

6da27200f473f8c55bb125f68314eecb2219c3dd
SHA256

b29691ac40b8bbb12b13e84641ad20583d1387ca356850aa7b5e76b0f6c76806
SHA512

c006f8ce77ef7dc150f137bb876a31e8f62f58e8337f487bab17752aa9eea95070e78b791488f36a2d152a871533a8bb9ee601f0053d1a2256d9e3cec3e7fe75
SSDEEP

6144:LxEtjPOtioVjDGUU1qfDlavx+W2QnAHBM:B

Score

10^/10

crimsonrat rat

Malware Config

Extracted

Family

crimsonrat

142.234.201.80

Signatures

CrimsonRAT main payload 1 IoCs

resource	yara_rule
behavioral1/files/0x00070000000185e6-42.dat	family_crimsonrat

CrimsonRat
Crimson RAT is a malware linked to a Pakistani-linked threat actor.
rat crimsonrat

Executes dropped EXE 1 IoCs

pid	Process
2056	tbvrarthsa.exe

Loads dropped DLL 1 IoCs

pid	Process
2376	EXCEL.EXE

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\PROGRA~3\MEDIA-~1\tbvrarthsa.exe	EXCEL.EXE
File opened for modification	C:\PROGRA~3\MEDIA-~1\tbvrarthsa.exe	EXCEL.EXE

Office loads VBA resources, possible macro or embedded object present

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE

Modifies registry class 64 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Interface\{8BD21D43-EC42-11CE-9E0D-00AA006002F3}\ = "IMdcCheckBox"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Wow6432Node\Interface\{5512D11F-5CC6-11CF-8D67-00AA00BDCE1D}	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Interface\{79176FB2-B7F2-11CE-97EF-00AA006D2776}\ = "SpinbuttonEvents"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Wow6432Node\Interface\{47FF8FE4-6198-11CF-8CE8-00AA006CB389}	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Wow6432Node\Interface\{5B9D8FC8-4A71-101B-97A6-00000B65C08B}\ = "FormEvents"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Wow6432Node\Interface\{04598FC1-866C-11CF-AB7C-00AA00C08FCF}\ = "ILabelControl"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Interface\{5512D11F-5CC6-11CF-8D67-00AA00BDCE1D}\ = "IWHTMLPassword"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Wow6432Node\Interface\{04598FC1-866C-11CF-AB7C-00AA00C08FCF}	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Wow6432Node\Interface\{5512D123-5CC6-11CF-8D67-00AA00BDCE1D}\ = "IWHTMLSelect"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Wow6432Node\Interface\{5512D125-5CC6-11CF-8D67-00AA00BDCE1D}	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\TypeLib\{332300BF-67D9-442B-9CC3-4A513AEEDDAF}\2.0\0\win32	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Wow6432Node\Interface\{5512D113-5CC6-11CF-8D67-00AA00BDCE1D}	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Interface\{47FF8FE3-6198-11CF-8CE8-00AA006CB389}	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Wow6432Node\Interface\{47FF8FE9-6198-11CF-8CE8-00AA006CB389}	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Wow6432Node\Interface\{04598FC9-866C-11CF-AB7C-00AA00C08FCF}\ = "IMultiPage"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Interface\{04598FC6-866C-11CF-AB7C-00AA00C08FCF}\ = "IControl"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Wow6432Node\Interface\{29B86A70-F52E-11CE-9BCE-00AA00608E01}\ = "IOptionFrame"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Wow6432Node\Interface\{8BD21D23-EC42-11CE-9E0D-00AA006002F3}\ = "IMdcList"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Interface\{47FF8FE4-6198-11CF-8CE8-00AA006CB389}	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Interface\{5512D11D-5CC6-11CF-8D67-00AA00BDCE1D}	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Wow6432Node\Interface\{47FF8FE5-6198-11CF-8CE8-00AA006CB389}	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{332300BF-67D9-442B-9CC3-4A513AEEDDAF}	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{332300BF-67D9-442B-9CC3-4A513AEEDDAF}\2.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\VBE\\MSForms.exd"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Interface\{8A683C91-BA84-11CF-8110-00A0C9030074}\ = "IReturnEffect"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Wow6432Node\Interface\{04598FC6-866C-11CF-AB7C-00AA00C08FCF}\ = "IControl"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Interface\{79176FB3-B7F2-11CE-97EF-00AA006D2776}	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Interface\{5512D113-5CC6-11CF-8D67-00AA00BDCE1D}	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Wow6432Node\Interface\{8BD21D33-EC42-11CE-9E0D-00AA006002F3}	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Interface\{04598FC3-866C-11CF-AB7C-00AA00C08FCF}\ = "IScrollbar"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Interface\{A38BFFC3-A5A0-11CE-8107-00AA00611080}	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Interface\{8BD21D12-EC42-11CE-9E0D-00AA006002F3}	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Wow6432Node\Interface\{8BD21D52-EC42-11CE-9E0D-00AA006002F3}	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Interface	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Wow6432Node\Interface\{8A683C90-BA84-11CF-8110-00A0C9030074}\ = "IReturnSingle"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Interface\{4C599243-6926-101B-9992-00000B65C6F9}	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Wow6432Node\Interface\{5512D11B-5CC6-11CF-8D67-00AA00BDCE1D}\ = "IWHTMLText"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Wow6432Node\Interface\{82B02371-B5BC-11CF-810F-00A0C9030074}\ = "IReturnBoolean"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Wow6432Node\Interface\{29B86A70-F52E-11CE-9BCE-00AA00608E01}	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Wow6432Node\Interface\{4C599243-6926-101B-9992-00000B65C6F9}\ = "IImage"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Interface\{4C5992A5-6926-101B-9992-00000B65C6F9}	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Interface\{47FF8FE3-6198-11CF-8CE8-00AA006CB389}\ = "WHTMLControlEvents4"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Wow6432Node\Interface\{47FF8FE6-6198-11CF-8CE8-00AA006CB389}\ = "WHTMLControlEvents7"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Interface\{8BD21D63-EC42-11CE-9E0D-00AA006002F3}	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Interface\{4C5992A5-6926-101B-9992-00000B65C6F9}\ = "ImageEvents"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Wow6432Node\Interface\{47FF8FE1-6198-11CF-8CE8-00AA006CB389}\ = "WHTMLControlEvents2"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Wow6432Node\Interface\{8BD21D43-EC42-11CE-9E0D-00AA006002F3}\ = "IMdcCheckBox"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Interface\{5CEF5613-713D-11CE-80C9-00AA00611080}	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Interface\{04598FC2-866C-11CF-AB7C-00AA00C08FCF}\ = "ITabStrip"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Interface\{5512D123-5CC6-11CF-8D67-00AA00BDCE1D}	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Interface\{796ED650-5FE9-11CF-8D68-00AA00BDCE1D}\ = "WHTMLControlEvents"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Interface\{47FF8FE2-6198-11CF-8CE8-00AA006CB389}\ = "WHTMLControlEvents3"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Wow6432Node\Interface\{47FF8FE6-6198-11CF-8CE8-00AA006CB389}	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Interface\{92E11A03-7358-11CE-80CB-00AA00611080}	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Interface\{47FF8FE2-6198-11CF-8CE8-00AA006CB389}	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Interface\{47FF8FE4-6198-11CF-8CE8-00AA006CB389}\ = "WHTMLControlEvents5"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Interface\{04598FC1-866C-11CF-AB7C-00AA00C08FCF}\ = "ILabelControl"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Wow6432Node\Interface\{79176FB3-B7F2-11CE-97EF-00AA006D2776}\ = "ISpinbutton"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Wow6432Node\Interface\{4C599243-6926-101B-9992-00000B65C6F9}	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Interface\{4C599243-6926-101B-9992-00000B65C6F9}\ = "IImage"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Interface\{5512D119-5CC6-11CF-8D67-00AA00BDCE1D}	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Interface\{7B020EC7-AF6C-11CE-9F46-00AA00574A4F}\ = "TabStripEvents"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\TypeLib\{332300BF-67D9-442B-9CC3-4A513AEEDDAF}\2.0	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Interface\{9A4BBF53-4E46-101B-8BBD-00AA003E3B29}\ = "ControlEvents"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\Wow6432Node\Interface\{04598FC3-866C-11CF-AB7C-00AA00C08FCF}	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2376	EXCEL.EXE

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2376	EXCEL.EXE
2376	EXCEL.EXE
2376	EXCEL.EXE
2376	EXCEL.EXE
2376	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2376 wrote to memory of 2056	2376	EXCEL.EXE	30
PID 2376 wrote to memory of 2056	2376	EXCEL.EXE	30
PID 2376 wrote to memory of 2056	2376	EXCEL.EXE	30
PID 2376 wrote to memory of 2056	2376	EXCEL.EXE	30

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\5158c5c17862225a86c8a4f36f054ae2_JaffaCakes118.xls
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Enumerates system info in registry
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2376
- C:\ProgramData\Media-List\tbvrarthsa.exe
  C:\ProgramData\Media-List\tbvrarthsa.exe
  2⤵
  - Executes dropped EXE
  PID:2056

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\PROGRA~3\MEDIA-~1\TBVRAR~1.ZIP

Filesize
56KB

MD5
d2c407c07cb5dc103cd112804455c0de

SHA1
231d5808d31e04770c1850bb81df49ff877c1a2d

SHA256
b4412a3806d135d58b9c8ef92947369457ca9b5e492aa02cf2d7540db39dd11b

SHA512
76a3e86d29956c619b8ca3966c1f234bebde3e7adedbd1ad0fc4e4e32d2e7cd06c207f8680a7454102c6f478333f91a3a8ba6f203bbc31d05db7c9a3f065b0eb

Download Submit
\ProgramData\Media-List\tbvrarthsa.exe

Filesize
9.6MB

MD5
6d5e033651ae6371b8c8a44b269101b2

SHA1
1d069acd9f69a01a1001e3df37abb55981cf31ef

SHA256
9acf62d22e93d6ea68b8d04a174fcd0c4e53d0f14fe1e7fadfcef4dfcc57f480

SHA512
fbeef908cb2a1ad2b8d50ad41215e57afcd31707d165e4f6fa0362a8b5df67bd84eb70d98582f20d9b25cf40d26346084b647bbe56304e1631a60e76b98ff54b

Download Submit
memory/2056-55-0x000007FEF5720000-0x000007FEF60BD000-memory.dmp

Filesize
9.6MB

Download
memory/2056-47-0x000007FEF5720000-0x000007FEF60BD000-memory.dmp

Filesize
9.6MB

Download
memory/2056-48-0x000007FEF5720000-0x000007FEF60BD000-memory.dmp

Filesize
9.6MB

Download
memory/2056-46-0x000007FEF59DE000-0x000007FEF59DF000-memory.dmp

Filesize
4KB

Download
memory/2376-7-0x0000000000550000-0x0000000000650000-memory.dmp

Filesize
1024KB

Download
memory/2376-9-0x0000000000550000-0x0000000000650000-memory.dmp

Filesize
1024KB

Download
memory/2376-19-0x0000000000550000-0x0000000000650000-memory.dmp

Filesize
1024KB

Download
memory/2376-17-0x0000000000550000-0x0000000000650000-memory.dmp

Filesize
1024KB

Download
memory/2376-23-0x0000000000550000-0x0000000000650000-memory.dmp

Filesize
1024KB

Download
memory/2376-11-0x0000000000550000-0x0000000000650000-memory.dmp

Filesize
1024KB

Download
memory/2376-10-0x0000000000550000-0x0000000000650000-memory.dmp

Filesize
1024KB

Download
memory/2376-6-0x0000000000550000-0x0000000000650000-memory.dmp

Filesize
1024KB

Download
memory/2376-8-0x0000000000550000-0x0000000000650000-memory.dmp

Filesize
1024KB

Download
memory/2376-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2376-5-0x00000000067D0000-0x00000000068D0000-memory.dmp

Filesize
1024KB

Download
memory/2376-4-0x0000000000550000-0x0000000000650000-memory.dmp

Filesize
1024KB

Download
memory/2376-3-0x0000000000550000-0x0000000000650000-memory.dmp

Filesize
1024KB

Download
memory/2376-54-0x0000000000550000-0x0000000000650000-memory.dmp

Filesize
1024KB

Download
memory/2376-53-0x000000007333D000-0x0000000073348000-memory.dmp

Filesize
44KB

Download
memory/2376-1-0x000000007333D000-0x0000000073348000-memory.dmp

Filesize
44KB

Download