formbook | 4bed0018133b549db2caeff1d8902e4b8c74188b3671d099f8206168d8e7aeca

General

Target

Mv Maersk Kleven V949E.xlsx
Size

2.2MB
MD5

6f9c071d241b667471112d7ac12a95a1
SHA1

43988263671b7f696dc63c4e87f9a034efb5d31a
SHA256

4bed0018133b549db2caeff1d8902e4b8c74188b3671d099f8206168d8e7aeca
SHA512

7bc3c032de74041d15c467dba7fda004c65bd6fa383db2824f0ba97de498be8cbad44b3e8d962583d1efa368fabd258a30ea739055ea482cbc97f3e69dd193d5

Score

10^/10

formbook xloader loader ransomware rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

C2

http://www.learnhour.net/eaud/

Decoy

modshiro.com

mademarketingoss.com

austinjourls.info

wayupteam.com

crossingfinger.com

interseptors.com

gigashit.com

livetigo.com

halamankuningindonesia.com

windhammills.com

aylinahmet.com

mbacexonan.website

shopboxbarcelona.com

youyeslive.com

coonlinesportsbooks.com

guorunme.com

putlocker2.site

pencueaidnetwork.com

likevector.com

vulcanudachi-proclub.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader

Xloader Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1984-20-0x0000000000400000-0x0000000000428000-memory.dmp	xloader
behavioral1/memory/1984-21-0x000000000041D030-mapping.dmp	xloader
behavioral1/memory/1496-31-0x0000000000080000-0x00000000000A8000-memory.dmp	xloader

Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow pid process

7 1352 EQNEDT32.EXE
Executes dropped EXE 2 IoCs

Processes:

vbc.exevbc.exe

pid process

640 vbc.exe
1984 vbc.exe
Loads dropped DLL 4 IoCs

Processes:

EQNEDT32.EXE

pid process

1352 EQNEDT32.EXE
1352 EQNEDT32.EXE
1352 EQNEDT32.EXE
1352 EQNEDT32.EXE
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
ransomware

System Information Discovery
T1082

flow	pid	process
7	1352	EQNEDT32.EXE

pid	process
640	vbc.exe
1984	vbc.exe

pid	process
1352	EQNEDT32.EXE
1352	EQNEDT32.EXE
1352	EQNEDT32.EXE
1352	EQNEDT32.EXE

Suspicious use of SetThreadContext 3 IoCs

Processes:

vbc.exevbc.exeipconfig.exe

description	pid	process	target process
PID 640 set thread context of 1984	640	vbc.exe	vbc.exe
PID 1984 set thread context of 1256	1984	vbc.exe	Explorer.EXE
PID 1496 set thread context of 1256	1496	ipconfig.exe	Explorer.EXE

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

EXCEL.EXE

description ioc process

Key opened \REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor EXCEL.EXE
Gathers network information 2 TTPs 1 IoCs
Uses commandline utility to view network configuration.

System Information Discovery
T1082

Command-Line Interface
T1059

Processes:

ipconfig.exe

pid process

1496 ipconfig.exe
Launches Equation Editor 1 TTPs 1 IoCs
Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.
exploit

Exploitation for Client Execution
T1203

Processes:

EQNEDT32.EXE

pid process

1352 EQNEDT32.EXE

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

pid	process
1496	ipconfig.exe

pid	process
1352	EQNEDT32.EXE

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

Processes:

EXCEL.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1096 EXCEL.EXE

pid	process
1096	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 22 IoCs

Processes:

vbc.exeipconfig.exe

pid	process
1984	vbc.exe
1984	vbc.exe
1496	ipconfig.exe
1496	ipconfig.exe
1496	ipconfig.exe
1496	ipconfig.exe
1496	ipconfig.exe
1496	ipconfig.exe
1496	ipconfig.exe
1496	ipconfig.exe
1496	ipconfig.exe
1496	ipconfig.exe
1496	ipconfig.exe
1496	ipconfig.exe
1496	ipconfig.exe
1496	ipconfig.exe
1496	ipconfig.exe
1496	ipconfig.exe
1496	ipconfig.exe
1496	ipconfig.exe
1496	ipconfig.exe
1496	ipconfig.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

vbc.exeipconfig.exe

pid process

1984 vbc.exe
1984 vbc.exe
1984 vbc.exe
1496 ipconfig.exe
1496 ipconfig.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

vbc.exeipconfig.exe

description pid process

Token: SeDebugPrivilege 1984 vbc.exe
Token: SeDebugPrivilege 1496 ipconfig.exe
Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

Explorer.EXE

pid process

1256 Explorer.EXE
1256 Explorer.EXE
1256 Explorer.EXE
1256 Explorer.EXE
Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1256 Explorer.EXE
1256 Explorer.EXE
1256 Explorer.EXE
1256 Explorer.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1096 EXCEL.EXE
1096 EXCEL.EXE
1096 EXCEL.EXE

description	pid	process
Token: SeDebugPrivilege	1984	vbc.exe
Token: SeDebugPrivilege	1496	ipconfig.exe

pid	process
1256	Explorer.EXE
1256	Explorer.EXE
1256	Explorer.EXE
1256	Explorer.EXE

pid	process
1256	Explorer.EXE
1256	Explorer.EXE
1256	Explorer.EXE
1256	Explorer.EXE

pid	process
1096	EXCEL.EXE
1096	EXCEL.EXE
1096	EXCEL.EXE

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

EQNEDT32.EXEvbc.exeExplorer.EXEipconfig.exe

description	pid	process	target process
PID 1352 wrote to memory of 640	1352	EQNEDT32.EXE	vbc.exe
PID 1352 wrote to memory of 640	1352	EQNEDT32.EXE	vbc.exe
PID 1352 wrote to memory of 640	1352	EQNEDT32.EXE	vbc.exe
PID 1352 wrote to memory of 640	1352	EQNEDT32.EXE	vbc.exe
PID 640 wrote to memory of 1984	640	vbc.exe	vbc.exe
PID 640 wrote to memory of 1984	640	vbc.exe	vbc.exe
PID 640 wrote to memory of 1984	640	vbc.exe	vbc.exe
PID 640 wrote to memory of 1984	640	vbc.exe	vbc.exe
PID 640 wrote to memory of 1984	640	vbc.exe	vbc.exe
PID 640 wrote to memory of 1984	640	vbc.exe	vbc.exe
PID 640 wrote to memory of 1984	640	vbc.exe	vbc.exe
PID 1256 wrote to memory of 1496	1256	Explorer.EXE	ipconfig.exe
PID 1256 wrote to memory of 1496	1256	Explorer.EXE	ipconfig.exe
PID 1256 wrote to memory of 1496	1256	Explorer.EXE	ipconfig.exe
PID 1256 wrote to memory of 1496	1256	Explorer.EXE	ipconfig.exe
PID 1496 wrote to memory of 472	1496	ipconfig.exe	cmd.exe
PID 1496 wrote to memory of 472	1496	ipconfig.exe	cmd.exe
PID 1496 wrote to memory of 472	1496	ipconfig.exe	cmd.exe
PID 1496 wrote to memory of 472	1496	ipconfig.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1256

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\Mv Maersk Kleven V949E.xlsx"
2⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:1096

C:\Windows\SysWOW64\ipconfig.exe
"C:\Windows\SysWOW64\ipconfig.exe"
2⤵
- Suspicious use of SetThreadContext
- Gathers network information
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1496

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Public\vbc.exe"
3⤵
PID:472

C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
"C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
1⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Launches Equation Editor
- Suspicious use of WriteProcessMemory
PID:1352

C:\Users\Public\vbc.exe
"C:\Users\Public\vbc.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:640

C:\Users\Public\vbc.exe
"{path}"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1984

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1

T1064

Command-Line Interface

1

T1059

Exploitation for Client Execution

1

T1203

Persistence

Privilege Escalation

Defense Evasion

Scripting

1

T1064

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

3

T1082

Query Registry

1

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Public\vbc.exe
MD5
e9ccfae9cb025410406a12538137c69f

SHA1
937d1cbd99d0f50bdfad67edfd96c811f0475d88

SHA256
fed11979ec84668f90bec2df7dde9872c7569080bbc832415746cde54bb3c384

SHA512
d84dd2e2ff238774afdf5858944f4b9c1e7e8ee38e190235348d88e09acb8f87992569c725df67b48a1b1f2faddbef19e191d59cdeb4f46ac082870e0286b9e0

Download Submit
C:\Users\Public\vbc.exe
MD5
e9ccfae9cb025410406a12538137c69f

SHA1
937d1cbd99d0f50bdfad67edfd96c811f0475d88

SHA256
fed11979ec84668f90bec2df7dde9872c7569080bbc832415746cde54bb3c384

SHA512
d84dd2e2ff238774afdf5858944f4b9c1e7e8ee38e190235348d88e09acb8f87992569c725df67b48a1b1f2faddbef19e191d59cdeb4f46ac082870e0286b9e0

Download Submit
C:\Users\Public\vbc.exe
MD5
e9ccfae9cb025410406a12538137c69f

SHA1
937d1cbd99d0f50bdfad67edfd96c811f0475d88

SHA256
fed11979ec84668f90bec2df7dde9872c7569080bbc832415746cde54bb3c384

SHA512
d84dd2e2ff238774afdf5858944f4b9c1e7e8ee38e190235348d88e09acb8f87992569c725df67b48a1b1f2faddbef19e191d59cdeb4f46ac082870e0286b9e0

Download Submit
\Users\Public\vbc.exe
MD5
e9ccfae9cb025410406a12538137c69f

SHA1
937d1cbd99d0f50bdfad67edfd96c811f0475d88

SHA256
fed11979ec84668f90bec2df7dde9872c7569080bbc832415746cde54bb3c384

SHA512
d84dd2e2ff238774afdf5858944f4b9c1e7e8ee38e190235348d88e09acb8f87992569c725df67b48a1b1f2faddbef19e191d59cdeb4f46ac082870e0286b9e0

Download Submit
\Users\Public\vbc.exe
MD5
e9ccfae9cb025410406a12538137c69f

SHA1
937d1cbd99d0f50bdfad67edfd96c811f0475d88

SHA256
fed11979ec84668f90bec2df7dde9872c7569080bbc832415746cde54bb3c384

SHA512
d84dd2e2ff238774afdf5858944f4b9c1e7e8ee38e190235348d88e09acb8f87992569c725df67b48a1b1f2faddbef19e191d59cdeb4f46ac082870e0286b9e0

Download Submit
\Users\Public\vbc.exe
MD5
e9ccfae9cb025410406a12538137c69f

SHA1
937d1cbd99d0f50bdfad67edfd96c811f0475d88

SHA256
fed11979ec84668f90bec2df7dde9872c7569080bbc832415746cde54bb3c384

SHA512
d84dd2e2ff238774afdf5858944f4b9c1e7e8ee38e190235348d88e09acb8f87992569c725df67b48a1b1f2faddbef19e191d59cdeb4f46ac082870e0286b9e0

Download Submit
\Users\Public\vbc.exe
MD5
e9ccfae9cb025410406a12538137c69f

SHA1
937d1cbd99d0f50bdfad67edfd96c811f0475d88

SHA256
fed11979ec84668f90bec2df7dde9872c7569080bbc832415746cde54bb3c384

SHA512
d84dd2e2ff238774afdf5858944f4b9c1e7e8ee38e190235348d88e09acb8f87992569c725df67b48a1b1f2faddbef19e191d59cdeb4f46ac082870e0286b9e0

Download Submit
memory/472-29-0x0000000000000000-mapping.dmp

Download
memory/640-17-0x0000000004C50000-0x0000000004C51000-memory.dmp

Filesize
4KB

Download
memory/640-18-0x0000000000520000-0x000000000052E000-memory.dmp

Filesize
56KB

Download
memory/640-11-0x0000000000000000-mapping.dmp

Download
memory/640-19-0x0000000005640000-0x00000000056C7000-memory.dmp

Filesize
540KB

Download
memory/640-14-0x000000006CC80000-0x000000006D36E000-memory.dmp

Filesize
6.9MB

Download
memory/640-15-0x0000000000930000-0x0000000000931000-memory.dmp

Filesize
4KB

Download
memory/1096-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1096-2-0x000000002F961000-0x000000002F964000-memory.dmp

Filesize
12KB

Download
memory/1096-3-0x0000000071B21000-0x0000000071B23000-memory.dmp

Filesize
8KB

Download
memory/1256-34-0x0000000004060000-0x000000000411D000-memory.dmp

Filesize
756KB

Download
memory/1256-26-0x0000000006B10000-0x0000000006CAA000-memory.dmp

Filesize
1.6MB

Download
memory/1352-5-0x0000000075711000-0x0000000075713000-memory.dmp

Filesize
8KB

Download
memory/1496-32-0x0000000002040000-0x0000000002343000-memory.dmp

Filesize
3.0MB

Download
memory/1496-33-0x0000000000540000-0x00000000005CF000-memory.dmp

Filesize
572KB

Download
memory/1496-30-0x0000000000AA0000-0x0000000000AAA000-memory.dmp

Filesize
40KB

Download
memory/1496-27-0x0000000000000000-mapping.dmp

Download
memory/1496-31-0x0000000000080000-0x00000000000A8000-memory.dmp

Filesize
160KB

Download
memory/1820-6-0x000007FEF6930000-0x000007FEF6BAA000-memory.dmp

Filesize
2.5MB

Download
memory/1984-21-0x000000000041D030-mapping.dmp

Download
memory/1984-25-0x0000000000080000-0x0000000000090000-memory.dmp

Filesize
64KB

Download
memory/1984-24-0x0000000000BD0000-0x0000000000ED3000-memory.dmp

Filesize
3.0MB

Download
memory/1984-20-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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