formbook | d44bc10f5bd18cc0467b5c3198014ff93c133b12b503b860c8d7eeba0ca60329

General

Target

819d2fdff92e281140049b008d9e368f.exe
Size

889KB
MD5

819d2fdff92e281140049b008d9e368f
SHA1

2ee177f5965d7275e9dd04bb888a7c5578b19e07
SHA256

d44bc10f5bd18cc0467b5c3198014ff93c133b12b503b860c8d7eeba0ca60329
SHA512

be2255c7c1eabf628cfd96281cdbc12b8379be5d94e0080dbd4f8bc86efe02ee252137d68499f5d55b3e20d5eb89e593443a1315ad122b20238d67348e62e90a

Score

10^/10

formbook xloader pdrq loader persistence rat spyware stealer trojan

Malware Config

Extracted

Family

xloader

Version

2.6

Campaign

pdrq

Decoy

welchsunstar.com

mppservicesllc.com

wiresofteflon.com

brabov.xyz

compnonoch.site

yourbuilderworks.com

iamsamirahman.com

eriqoes.com

eastudio.design

skyearth-est.com

teethfitness.com

razaancreates.com

shfbfs.com

joyfulbrokekids.com

kjbolden.com

howirep.com

deedeesmainecoons.website

e-powair.com

aheatea.com

shalfey0009.xyz

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 5 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1300-67-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral1/memory/1300-68-0x000000000041F270-mapping.dmp	xloader
behavioral1/memory/1300-70-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral1/memory/1976-79-0x0000000000080000-0x00000000000AB000-memory.dmp	xloader
behavioral1/memory/1976-83-0x0000000000080000-0x00000000000AB000-memory.dmp	xloader

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

chkdsk.exe

description	ioc	process
Key created	\Registry\Machine\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	chkdsk.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\0D4HS0RH8DNX = "C:\\Program Files (x86)\\Lrfipnz\\gdimjalrp.exe"	chkdsk.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

819d2fdff92e281140049b008d9e368f.exeRegSvcs.exechkdsk.exe

description	pid	process	target process
PID 908 set thread context of 1300	908	819d2fdff92e281140049b008d9e368f.exe	RegSvcs.exe
PID 1300 set thread context of 1272	1300	RegSvcs.exe	Explorer.EXE
PID 1976 set thread context of 1272	1976	chkdsk.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

chkdsk.exe

description ioc process

File opened for modification C:\Program Files (x86)\Lrfipnz\gdimjalrp.exe chkdsk.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

952 schtasks.exe
Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

chkdsk.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier chkdsk.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Lrfipnz\gdimjalrp.exe	chkdsk.exe

pid	process
952	schtasks.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

chkdsk.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-335065374-4263250628-1829373619-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 19 IoCs

Processes:

819d2fdff92e281140049b008d9e368f.exeRegSvcs.exepowershell.exechkdsk.exe

pid	process
908	819d2fdff92e281140049b008d9e368f.exe
908	819d2fdff92e281140049b008d9e368f.exe
1300	RegSvcs.exe
1300	RegSvcs.exe
1392	powershell.exe
1976	chkdsk.exe
1976	chkdsk.exe
1976	chkdsk.exe
1976	chkdsk.exe
1976	chkdsk.exe
1976	chkdsk.exe
1976	chkdsk.exe
1976	chkdsk.exe
1976	chkdsk.exe
1976	chkdsk.exe
1976	chkdsk.exe
1976	chkdsk.exe
1976	chkdsk.exe
1976	chkdsk.exe

Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

RegSvcs.exechkdsk.exe

pid process

1300 RegSvcs.exe
1300 RegSvcs.exe
1300 RegSvcs.exe
1976 chkdsk.exe
1976 chkdsk.exe
1976 chkdsk.exe
1976 chkdsk.exe

pid	process
1300	RegSvcs.exe
1300	RegSvcs.exe
1300	RegSvcs.exe
1976	chkdsk.exe
1976	chkdsk.exe
1976	chkdsk.exe
1976	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

819d2fdff92e281140049b008d9e368f.exeRegSvcs.exepowershell.exechkdsk.exe

description	pid	process
Token: SeDebugPrivilege	908	819d2fdff92e281140049b008d9e368f.exe
Token: SeDebugPrivilege	1300	RegSvcs.exe
Token: SeDebugPrivilege	1392	powershell.exe
Token: SeDebugPrivilege	1976	chkdsk.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1272 Explorer.EXE
1272 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1272 Explorer.EXE
1272 Explorer.EXE

pid	process
1272	Explorer.EXE
1272	Explorer.EXE

pid	process
1272	Explorer.EXE
1272	Explorer.EXE

Suspicious use of WriteProcessMemory 31 IoCs

Processes:

819d2fdff92e281140049b008d9e368f.exeExplorer.EXEchkdsk.exe

description	pid	process	target process
PID 908 wrote to memory of 1392	908	819d2fdff92e281140049b008d9e368f.exe	powershell.exe
PID 908 wrote to memory of 1392	908	819d2fdff92e281140049b008d9e368f.exe	powershell.exe
PID 908 wrote to memory of 1392	908	819d2fdff92e281140049b008d9e368f.exe	powershell.exe
PID 908 wrote to memory of 1392	908	819d2fdff92e281140049b008d9e368f.exe	powershell.exe
PID 908 wrote to memory of 952	908	819d2fdff92e281140049b008d9e368f.exe	schtasks.exe
PID 908 wrote to memory of 952	908	819d2fdff92e281140049b008d9e368f.exe	schtasks.exe
PID 908 wrote to memory of 952	908	819d2fdff92e281140049b008d9e368f.exe	schtasks.exe
PID 908 wrote to memory of 952	908	819d2fdff92e281140049b008d9e368f.exe	schtasks.exe
PID 908 wrote to memory of 1300	908	819d2fdff92e281140049b008d9e368f.exe	RegSvcs.exe
PID 908 wrote to memory of 1300	908	819d2fdff92e281140049b008d9e368f.exe	RegSvcs.exe
PID 908 wrote to memory of 1300	908	819d2fdff92e281140049b008d9e368f.exe	RegSvcs.exe
PID 908 wrote to memory of 1300	908	819d2fdff92e281140049b008d9e368f.exe	RegSvcs.exe
PID 908 wrote to memory of 1300	908	819d2fdff92e281140049b008d9e368f.exe	RegSvcs.exe
PID 908 wrote to memory of 1300	908	819d2fdff92e281140049b008d9e368f.exe	RegSvcs.exe
PID 908 wrote to memory of 1300	908	819d2fdff92e281140049b008d9e368f.exe	RegSvcs.exe
PID 908 wrote to memory of 1300	908	819d2fdff92e281140049b008d9e368f.exe	RegSvcs.exe
PID 908 wrote to memory of 1300	908	819d2fdff92e281140049b008d9e368f.exe	RegSvcs.exe
PID 908 wrote to memory of 1300	908	819d2fdff92e281140049b008d9e368f.exe	RegSvcs.exe
PID 1272 wrote to memory of 1976	1272	Explorer.EXE	chkdsk.exe
PID 1272 wrote to memory of 1976	1272	Explorer.EXE	chkdsk.exe
PID 1272 wrote to memory of 1976	1272	Explorer.EXE	chkdsk.exe
PID 1272 wrote to memory of 1976	1272	Explorer.EXE	chkdsk.exe
PID 1976 wrote to memory of 1360	1976	chkdsk.exe	cmd.exe
PID 1976 wrote to memory of 1360	1976	chkdsk.exe	cmd.exe
PID 1976 wrote to memory of 1360	1976	chkdsk.exe	cmd.exe
PID 1976 wrote to memory of 1360	1976	chkdsk.exe	cmd.exe
PID 1976 wrote to memory of 628	1976	chkdsk.exe	Firefox.exe
PID 1976 wrote to memory of 628	1976	chkdsk.exe	Firefox.exe
PID 1976 wrote to memory of 628	1976	chkdsk.exe	Firefox.exe
PID 1976 wrote to memory of 628	1976	chkdsk.exe	Firefox.exe
PID 1976 wrote to memory of 628	1976	chkdsk.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1272

C:\Users\Admin\AppData\Local\Temp\819d2fdff92e281140049b008d9e368f.exe
"C:\Users\Admin\AppData\Local\Temp\819d2fdff92e281140049b008d9e368f.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:908

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\IlJWnRO.exe"
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1392

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\IlJWnRO" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1881.tmp"
3⤵
- Creates scheduled task(s)
PID:952

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1300

C:\Windows\SysWOW64\chkdsk.exe
"C:\Windows\SysWOW64\chkdsk.exe"
2⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1976

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
3⤵
PID:1360

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:628

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

2

T1082

Query Registry

1

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp1881.tmp
Filesize
1KB

MD5
1e2648a1caceb7b167cde3eea5645708

SHA1
a12ef7fd817c7dc251238143a00d27130ea5f6fe

SHA256
6749394dea0559cec0b165a1f4d5b63b8abf11c2cf9225c15e7463f2f54984e8

SHA512
0abe0f1d0d0928a3ac37419cb7f131afa2c4b4d7aa830e68160c83f216003b0f3a6f5e65d3e919c7a27bfc2bc01a97803c89f16da772eaa2f7ff2e6ada4a0cbb

Download Submit
memory/908-63-0x0000000000EA0000-0x0000000000ED4000-memory.dmp

Filesize
208KB

Download
memory/908-54-0x0000000000ED0000-0x0000000000FB4000-memory.dmp

Filesize
912KB

Download
memory/908-56-0x0000000000410000-0x0000000000426000-memory.dmp

Filesize
88KB

Download
memory/908-58-0x000000000A580000-0x000000000A602000-memory.dmp

Filesize
520KB

Download
memory/908-57-0x0000000000440000-0x000000000044A000-memory.dmp

Filesize
40KB

Download
memory/908-55-0x0000000075891000-0x0000000075893000-memory.dmp

Filesize
8KB

Download
memory/952-60-0x0000000000000000-mapping.dmp

Download
memory/1272-82-0x00000000068D0000-0x00000000069E8000-memory.dmp

Filesize
1.1MB

Download
memory/1272-84-0x00000000068D0000-0x00000000069E8000-memory.dmp

Filesize
1.1MB

Download
memory/1272-74-0x0000000004DE0000-0x0000000004E91000-memory.dmp

Filesize
708KB

Download
memory/1300-67-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1300-68-0x000000000041F270-mapping.dmp

Download
memory/1300-70-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1300-65-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1300-72-0x0000000000870000-0x0000000000B73000-memory.dmp

Filesize
3.0MB

Download
memory/1300-73-0x0000000000210000-0x0000000000221000-memory.dmp

Filesize
68KB

Download
memory/1300-64-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1360-77-0x0000000000000000-mapping.dmp

Download
memory/1392-71-0x000000006E7F0000-0x000000006ED9B000-memory.dmp

Filesize
5.7MB

Download
memory/1392-75-0x000000006E7F0000-0x000000006ED9B000-memory.dmp

Filesize
5.7MB

Download
memory/1392-59-0x0000000000000000-mapping.dmp

Download
memory/1976-76-0x0000000000000000-mapping.dmp

Download
memory/1976-78-0x0000000000340000-0x0000000000347000-memory.dmp

Filesize
28KB

Download
memory/1976-79-0x0000000000080000-0x00000000000AB000-memory.dmp

Filesize
172KB

Download
memory/1976-80-0x0000000002040000-0x0000000002343000-memory.dmp

Filesize
3.0MB

Download
memory/1976-81-0x0000000000490000-0x0000000000520000-memory.dmp

Filesize
576KB

Download
memory/1976-83-0x0000000000080000-0x00000000000AB000-memory.dmp

Filesize
172KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads