4fc3963ea12b1638b7480f1278c6332249cf759f8d961e7c8eebd07ac8281b84

General

Target

4fc3963ea12b1638b7480f1278c6332249cf759f8d961e7c8eebd07ac8281b84.exe
Size

959KB
MD5

2a87dd72470b2d643a93f13d133b786c
SHA1

b5e148e73c7238b475ccfd15906ca4696f06c095
SHA256

4fc3963ea12b1638b7480f1278c6332249cf759f8d961e7c8eebd07ac8281b84
SHA512

e0e59ddf5b2d94dea69fbdbca383293600a27189bb789d81e3302c5161449ab01680bd35bee1658aa80f33f31da6af140c5cac0eb9bf8938368c3a26cfd04264

Score

9^/10

collection persistence

Malware Config

Signatures

NirSoft MailPassView 5 IoCs

Password recovery tool for various email clients

Processes:

resource	yara_rule
behavioral1/memory/740-83-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView
behavioral1/memory/740-84-0x0000000000411790-mapping.dmp	MailPassView
behavioral1/memory/740-87-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView
behavioral1/memory/740-88-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView
behavioral1/memory/740-89-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 5 IoCs

Password recovery tool for various web browsers

Processes:

resource	yara_rule
behavioral1/memory/1368-99-0x0000000000400000-0x000000000045A000-memory.dmp	WebBrowserPassView
behavioral1/memory/1368-100-0x00000000004439CC-mapping.dmp	WebBrowserPassView
behavioral1/memory/1368-103-0x0000000000400000-0x000000000045A000-memory.dmp	WebBrowserPassView
behavioral1/memory/1368-104-0x0000000000400000-0x000000000045A000-memory.dmp	WebBrowserPassView
behavioral1/memory/1368-106-0x0000000000400000-0x000000000045A000-memory.dmp	WebBrowserPassView

Nirsoft 10 IoCs

Processes:

resource	yara_rule
behavioral1/memory/740-83-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft
behavioral1/memory/740-84-0x0000000000411790-mapping.dmp	Nirsoft
behavioral1/memory/740-87-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft
behavioral1/memory/740-88-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft
behavioral1/memory/740-89-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft
behavioral1/memory/1368-99-0x0000000000400000-0x000000000045A000-memory.dmp	Nirsoft
behavioral1/memory/1368-100-0x00000000004439CC-mapping.dmp	Nirsoft
behavioral1/memory/1368-103-0x0000000000400000-0x000000000045A000-memory.dmp	Nirsoft
behavioral1/memory/1368-104-0x0000000000400000-0x000000000045A000-memory.dmp	Nirsoft
behavioral1/memory/1368-106-0x0000000000400000-0x000000000045A000-memory.dmp	Nirsoft

Executes dropped EXE 1 IoCs

Processes:

cHgEQbiUWZERdZeGDFdEa.exe

pid process

1948 cHgEQbiUWZERdZeGDFdEa.exe

pid	process
1948	cHgEQbiUWZERdZeGDFdEa.exe

Drops startup file 1 IoCs

Processes:

cHgEQbiUWZERdZeGDFdEa.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\hIDGfhDhIPWCMITi.lnk	cHgEQbiUWZERdZeGDFdEa.exe

Loads dropped DLL 2 IoCs

Processes:

4fc3963ea12b1638b7480f1278c6332249cf759f8d961e7c8eebd07ac8281b84.execHgEQbiUWZERdZeGDFdEa.exe

pid process

1892 4fc3963ea12b1638b7480f1278c6332249cf759f8d961e7c8eebd07ac8281b84.exe
1948 cHgEQbiUWZERdZeGDFdEa.exe
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

pid	process
1892	4fc3963ea12b1638b7480f1278c6332249cf759f8d961e7c8eebd07ac8281b84.exe
1948	cHgEQbiUWZERdZeGDFdEa.exe

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

Processes:

vbc.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3762437355-3468409815-1164039494-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	vbc.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

4fc3963ea12b1638b7480f1278c6332249cf759f8d961e7c8eebd07ac8281b84.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce	4fc3963ea12b1638b7480f1278c6332249cf759f8d961e7c8eebd07ac8281b84.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	4fc3963ea12b1638b7480f1278c6332249cf759f8d961e7c8eebd07ac8281b84.exe

Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

3 checkip.dyndns.org

flow	ioc
3	checkip.dyndns.org

Suspicious use of SetThreadContext 3 IoCs

Processes:

cHgEQbiUWZERdZeGDFdEa.exeRegAsm.exe

description	pid	process	target process
PID 1948 set thread context of 1708	1948	cHgEQbiUWZERdZeGDFdEa.exe	RegAsm.exe
PID 1708 set thread context of 740	1708	RegAsm.exe	vbc.exe
PID 1708 set thread context of 1368	1708	RegAsm.exe	vbc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

vbc.exe

pid process

1368 vbc.exe
1368 vbc.exe
1368 vbc.exe
1368 vbc.exe
1368 vbc.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

RegAsm.exe

pid process

1708 RegAsm.exe

pid	process
1368	vbc.exe
1368	vbc.exe
1368	vbc.exe
1368	vbc.exe
1368	vbc.exe

pid	process
1708	RegAsm.exe

Suspicious use of WriteProcessMemory 33 IoCs

Processes:

4fc3963ea12b1638b7480f1278c6332249cf759f8d961e7c8eebd07ac8281b84.execHgEQbiUWZERdZeGDFdEa.exeRegAsm.exe

description	pid	process	target process
PID 1892 wrote to memory of 1948	1892	4fc3963ea12b1638b7480f1278c6332249cf759f8d961e7c8eebd07ac8281b84.exe	cHgEQbiUWZERdZeGDFdEa.exe
PID 1892 wrote to memory of 1948	1892	4fc3963ea12b1638b7480f1278c6332249cf759f8d961e7c8eebd07ac8281b84.exe	cHgEQbiUWZERdZeGDFdEa.exe
PID 1892 wrote to memory of 1948	1892	4fc3963ea12b1638b7480f1278c6332249cf759f8d961e7c8eebd07ac8281b84.exe	cHgEQbiUWZERdZeGDFdEa.exe
PID 1892 wrote to memory of 1948	1892	4fc3963ea12b1638b7480f1278c6332249cf759f8d961e7c8eebd07ac8281b84.exe	cHgEQbiUWZERdZeGDFdEa.exe
PID 1948 wrote to memory of 1708	1948	cHgEQbiUWZERdZeGDFdEa.exe	RegAsm.exe
PID 1948 wrote to memory of 1708	1948	cHgEQbiUWZERdZeGDFdEa.exe	RegAsm.exe
PID 1948 wrote to memory of 1708	1948	cHgEQbiUWZERdZeGDFdEa.exe	RegAsm.exe
PID 1948 wrote to memory of 1708	1948	cHgEQbiUWZERdZeGDFdEa.exe	RegAsm.exe
PID 1948 wrote to memory of 1708	1948	cHgEQbiUWZERdZeGDFdEa.exe	RegAsm.exe
PID 1948 wrote to memory of 1708	1948	cHgEQbiUWZERdZeGDFdEa.exe	RegAsm.exe
PID 1948 wrote to memory of 1708	1948	cHgEQbiUWZERdZeGDFdEa.exe	RegAsm.exe
PID 1948 wrote to memory of 1708	1948	cHgEQbiUWZERdZeGDFdEa.exe	RegAsm.exe
PID 1948 wrote to memory of 1708	1948	cHgEQbiUWZERdZeGDFdEa.exe	RegAsm.exe
PID 1708 wrote to memory of 740	1708	RegAsm.exe	vbc.exe
PID 1708 wrote to memory of 740	1708	RegAsm.exe	vbc.exe
PID 1708 wrote to memory of 740	1708	RegAsm.exe	vbc.exe
PID 1708 wrote to memory of 740	1708	RegAsm.exe	vbc.exe
PID 1708 wrote to memory of 740	1708	RegAsm.exe	vbc.exe
PID 1708 wrote to memory of 740	1708	RegAsm.exe	vbc.exe
PID 1708 wrote to memory of 740	1708	RegAsm.exe	vbc.exe
PID 1708 wrote to memory of 740	1708	RegAsm.exe	vbc.exe
PID 1708 wrote to memory of 740	1708	RegAsm.exe	vbc.exe
PID 1708 wrote to memory of 740	1708	RegAsm.exe	vbc.exe
PID 1708 wrote to memory of 1368	1708	RegAsm.exe	vbc.exe
PID 1708 wrote to memory of 1368	1708	RegAsm.exe	vbc.exe
PID 1708 wrote to memory of 1368	1708	RegAsm.exe	vbc.exe
PID 1708 wrote to memory of 1368	1708	RegAsm.exe	vbc.exe
PID 1708 wrote to memory of 1368	1708	RegAsm.exe	vbc.exe
PID 1708 wrote to memory of 1368	1708	RegAsm.exe	vbc.exe
PID 1708 wrote to memory of 1368	1708	RegAsm.exe	vbc.exe
PID 1708 wrote to memory of 1368	1708	RegAsm.exe	vbc.exe
PID 1708 wrote to memory of 1368	1708	RegAsm.exe	vbc.exe
PID 1708 wrote to memory of 1368	1708	RegAsm.exe	vbc.exe

C:\Users\Admin\AppData\Local\Temp\4fc3963ea12b1638b7480f1278c6332249cf759f8d961e7c8eebd07ac8281b84.exe
"C:\Users\Admin\AppData\Local\Temp\4fc3963ea12b1638b7480f1278c6332249cf759f8d961e7c8eebd07ac8281b84.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1892

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\cHgEQbiUWZERdZeGDFdEa.exe
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\cHgEQbiUWZERdZeGDFdEa.exe WVNLIfYERIFHFSMTOQJ
2⤵
- Executes dropped EXE
- Drops startup file
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1948

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
- CmdLine Args
3⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1708

C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /stext "C:\Users\Admin\AppData\Local\Temp\\Mail.txt"
4⤵
- Accesses Microsoft Outlook accounts
PID:740

C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /stext "C:\Users\Admin\AppData\Local\Temp\\Web.txt"
4⤵
- Suspicious behavior: EnumeratesProcesses
PID:1368

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1

T1064

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Scripting

1

T1064

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\WVNLIfYERIFHFSMTOQJ
Filesize
38KB

MD5
583a62d5d924962728fa0b4b860c208d

SHA1
b25b54d92a6622817f722c910efa1832526e9307

SHA256
10abe1ad01ce4fc9e9a46ca31bef3f02998deafba2f3a2b5d797f773e40005cb

SHA512
b9f83c2af6dc370f27fdf4e374edc5dbb2e5f2dffbbd669a98afe2b0ca9c5eaa5047d014357ebfebd561595ad5941ffeafa5c3db8e918c01802e56d52fbc4396

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\cHgEQbiUWZERdZeGDFdEa.exe
Filesize
732KB

MD5
71d8f6d5dc35517275bc38ebcc815f9f

SHA1
cae4e8c730de5a01d30aabeb3e5cb2136090ed8d

SHA256
fb73a819b37523126c7708a1d06f3b8825fa60c926154ab2d511ba668f49dc4b

SHA512
4826f45000ea50d9044e3ef11e83426281fbd5f3f5a25f9786c2e487b4cf26b04f6f900ca6e70440644c9d75f700a4c908ab6f398f59c65ee1bff85dfef4ce59

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\cHgEQbiUWZERdZeGDFdEa.exe
Filesize
732KB

MD5
71d8f6d5dc35517275bc38ebcc815f9f

SHA1
cae4e8c730de5a01d30aabeb3e5cb2136090ed8d

SHA256
fb73a819b37523126c7708a1d06f3b8825fa60c926154ab2d511ba668f49dc4b

SHA512
4826f45000ea50d9044e3ef11e83426281fbd5f3f5a25f9786c2e487b4cf26b04f6f900ca6e70440644c9d75f700a4c908ab6f398f59c65ee1bff85dfef4ce59

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\hIDGfhDhIPWC
Filesize
474KB

MD5
9e07743fdb2c33512972b7f0c66c2bf7

SHA1
d89479a61d01b30f38ca07ac4302f80771f61485

SHA256
0d27ebe5936dc6f6c69de504620887015d04837dc0c40389251f8e45c3b87d9d

SHA512
c63a7f8a2b18868dadf30b0bfdafba1ce74bc274b32e75a295cc1eb92d56c0d106fb9414866698eebab6d81a006a8c3a9d2d40fe9c18b465481109ca9e2a9704

Download Submit
C:\Users\Admin\AppData\Local\Temp\Web.txt
Filesize
2B

MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
\Users\Admin\AppData\Local\Temp\IXP000.TMP\cHgEQbiUWZERdZeGDFdEa.exe
Filesize
732KB

MD5
71d8f6d5dc35517275bc38ebcc815f9f

SHA1
cae4e8c730de5a01d30aabeb3e5cb2136090ed8d

SHA256
fb73a819b37523126c7708a1d06f3b8825fa60c926154ab2d511ba668f49dc4b

SHA512
4826f45000ea50d9044e3ef11e83426281fbd5f3f5a25f9786c2e487b4cf26b04f6f900ca6e70440644c9d75f700a4c908ab6f398f59c65ee1bff85dfef4ce59

Download Submit
\Users\Admin\AppData\Roaming\cHgEQbiUWZERdZeGDFdEa.exe
Filesize
732KB

MD5
71d8f6d5dc35517275bc38ebcc815f9f

SHA1
cae4e8c730de5a01d30aabeb3e5cb2136090ed8d

SHA256
fb73a819b37523126c7708a1d06f3b8825fa60c926154ab2d511ba668f49dc4b

SHA512
4826f45000ea50d9044e3ef11e83426281fbd5f3f5a25f9786c2e487b4cf26b04f6f900ca6e70440644c9d75f700a4c908ab6f398f59c65ee1bff85dfef4ce59

Download Submit
memory/740-89-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/740-88-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/740-87-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/740-84-0x0000000000411790-mapping.dmp

Download
memory/740-83-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/740-78-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/740-81-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/740-80-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/740-75-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/740-76-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1368-93-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/1368-99-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/1368-106-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/1368-104-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/1368-103-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/1368-100-0x00000000004439CC-mapping.dmp

Download
memory/1368-97-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/1368-95-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/1368-90-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/1368-91-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/1708-61-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/1708-63-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/1708-74-0x0000000073960000-0x0000000073F0B000-memory.dmp

Filesize
5.7MB

Download
memory/1708-68-0x000000000047516E-mapping.dmp

Download
memory/1708-69-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/1708-70-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/1708-73-0x0000000073960000-0x0000000073F0B000-memory.dmp

Filesize
5.7MB

Download
memory/1948-57-0x0000000075CC1000-0x0000000075CC3000-memory.dmp

Filesize
8KB

Download
memory/1948-55-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads