formbook | ca4112bb9a7b776f14e9085c5b3ecaa7458ecaaa4c2515b79978d7f99eca768f

General

Target

148b63c2b85f806c7c3036f854b1c6f0.exe
Size

253KB
MD5

148b63c2b85f806c7c3036f854b1c6f0
SHA1

43b8071712dc21a04140a2eae003380b7575f7e8
SHA256

ca4112bb9a7b776f14e9085c5b3ecaa7458ecaaa4c2515b79978d7f99eca768f
SHA512

b16af075fc1a9569d6898d58f623a8af277b09543130afaf9e21a710032d1545c42b37530514cb0d080ed3afcc028317573ae5cdd7c2fac5bbb87e0ac80f99d2

Score

10^/10

formbook xloader arh2 loader persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

xloader

Version

2.6

Campaign

arh2

Decoy

hstorc.com

blackountry.com

dhrbakery.com

dezhouofit.com

defipayout.xyz

ginas4t.com

byzbh63.xyz

qrcrashview.com

mialibaby.com

enhaut.net

samainnova.com

yashveerresort.com

delfos.online

dungcumay.com

lj-counseling.net

fliptheswitch.pro

padogbitelawyer.com

aticarev.com

sederino.site

bestplansforpets-japan3.life

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
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata

Xloader Payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/972-64-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral1/memory/972-65-0x000000000041F270-mapping.dmp	xloader
behavioral1/memory/972-68-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral1/memory/1988-76-0x0000000000080000-0x00000000000AB000-memory.dmp	xloader

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

msdt.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	msdt.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\MRQPL = "C:\\Program Files (x86)\\Xcbcpfzx\\systraynpxlg6.exe"	msdt.exe

Executes dropped EXE 2 IoCs

Processes:

lbaooyiqoz.exelbaooyiqoz.exe

pid process

900 lbaooyiqoz.exe
972 lbaooyiqoz.exe
Loads dropped DLL 3 IoCs

Processes:

148b63c2b85f806c7c3036f854b1c6f0.exelbaooyiqoz.exe

pid process

756 148b63c2b85f806c7c3036f854b1c6f0.exe
756 148b63c2b85f806c7c3036f854b1c6f0.exe
900 lbaooyiqoz.exe

pid	process
900	lbaooyiqoz.exe
972	lbaooyiqoz.exe

pid	process
756	148b63c2b85f806c7c3036f854b1c6f0.exe
756	148b63c2b85f806c7c3036f854b1c6f0.exe
900	lbaooyiqoz.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

lbaooyiqoz.exelbaooyiqoz.exemsdt.exe

description	pid	process	target process
PID 900 set thread context of 972	900	lbaooyiqoz.exe	lbaooyiqoz.exe
PID 972 set thread context of 1300	972	lbaooyiqoz.exe	Explorer.EXE
PID 1988 set thread context of 1300	1988	msdt.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

msdt.exe

description ioc process

File opened for modification C:\Program Files (x86)\Xcbcpfzx\systraynpxlg6.exe msdt.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	ioc	process
File opened for modification	C:\Program Files (x86)\Xcbcpfzx\systraynpxlg6.exe	msdt.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

msdt.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-2277218442-1199762539-2004043321-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	msdt.exe

Suspicious behavior: EnumeratesProcesses 26 IoCs

Processes:

lbaooyiqoz.exemsdt.exe

pid	process
972	lbaooyiqoz.exe
972	lbaooyiqoz.exe
1988	msdt.exe
1988	msdt.exe
1988	msdt.exe
1988	msdt.exe
1988	msdt.exe
1988	msdt.exe
1988	msdt.exe
1988	msdt.exe
1988	msdt.exe
1988	msdt.exe
1988	msdt.exe
1988	msdt.exe
1988	msdt.exe
1988	msdt.exe
1988	msdt.exe
1988	msdt.exe
1988	msdt.exe
1988	msdt.exe
1988	msdt.exe
1988	msdt.exe
1988	msdt.exe
1988	msdt.exe
1988	msdt.exe
1988	msdt.exe

Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

lbaooyiqoz.exemsdt.exe

pid process

972 lbaooyiqoz.exe
972 lbaooyiqoz.exe
972 lbaooyiqoz.exe
1988 msdt.exe
1988 msdt.exe
1988 msdt.exe
1988 msdt.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

lbaooyiqoz.exemsdt.exe

description pid process

Token: SeDebugPrivilege 972 lbaooyiqoz.exe
Token: SeDebugPrivilege 1988 msdt.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1300 Explorer.EXE
1300 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1300 Explorer.EXE
1300 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	972	lbaooyiqoz.exe
Token: SeDebugPrivilege	1988	msdt.exe

pid	process
1300	Explorer.EXE
1300	Explorer.EXE

pid	process
1300	Explorer.EXE
1300	Explorer.EXE

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

148b63c2b85f806c7c3036f854b1c6f0.exelbaooyiqoz.exeExplorer.EXEmsdt.exe

description	pid	process	target process
PID 756 wrote to memory of 900	756	148b63c2b85f806c7c3036f854b1c6f0.exe	lbaooyiqoz.exe
PID 756 wrote to memory of 900	756	148b63c2b85f806c7c3036f854b1c6f0.exe	lbaooyiqoz.exe
PID 756 wrote to memory of 900	756	148b63c2b85f806c7c3036f854b1c6f0.exe	lbaooyiqoz.exe
PID 756 wrote to memory of 900	756	148b63c2b85f806c7c3036f854b1c6f0.exe	lbaooyiqoz.exe
PID 900 wrote to memory of 972	900	lbaooyiqoz.exe	lbaooyiqoz.exe
PID 900 wrote to memory of 972	900	lbaooyiqoz.exe	lbaooyiqoz.exe
PID 900 wrote to memory of 972	900	lbaooyiqoz.exe	lbaooyiqoz.exe
PID 900 wrote to memory of 972	900	lbaooyiqoz.exe	lbaooyiqoz.exe
PID 900 wrote to memory of 972	900	lbaooyiqoz.exe	lbaooyiqoz.exe
PID 900 wrote to memory of 972	900	lbaooyiqoz.exe	lbaooyiqoz.exe
PID 900 wrote to memory of 972	900	lbaooyiqoz.exe	lbaooyiqoz.exe
PID 1300 wrote to memory of 1988	1300	Explorer.EXE	msdt.exe
PID 1300 wrote to memory of 1988	1300	Explorer.EXE	msdt.exe
PID 1300 wrote to memory of 1988	1300	Explorer.EXE	msdt.exe
PID 1300 wrote to memory of 1988	1300	Explorer.EXE	msdt.exe
PID 1988 wrote to memory of 1944	1988	msdt.exe	cmd.exe
PID 1988 wrote to memory of 1944	1988	msdt.exe	cmd.exe
PID 1988 wrote to memory of 1944	1988	msdt.exe	cmd.exe
PID 1988 wrote to memory of 1944	1988	msdt.exe	cmd.exe
PID 1988 wrote to memory of 1100	1988	msdt.exe	Firefox.exe
PID 1988 wrote to memory of 1100	1988	msdt.exe	Firefox.exe
PID 1988 wrote to memory of 1100	1988	msdt.exe	Firefox.exe
PID 1988 wrote to memory of 1100	1988	msdt.exe	Firefox.exe
PID 1988 wrote to memory of 1100	1988	msdt.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:1300

C:\Users\Admin\AppData\Local\Temp\148b63c2b85f806c7c3036f854b1c6f0.exe
"C:\Users\Admin\AppData\Local\Temp\148b63c2b85f806c7c3036f854b1c6f0.exe"
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:756

C:\Users\Admin\AppData\Local\Temp\lbaooyiqoz.exe
C:\Users\Admin\AppData\Local\Temp\lbaooyiqoz.exe C:\Users\Admin\AppData\Local\Temp\enevfyfwb
3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:900

C:\Users\Admin\AppData\Local\Temp\lbaooyiqoz.exe
C:\Users\Admin\AppData\Local\Temp\lbaooyiqoz.exe C:\Users\Admin\AppData\Local\Temp\enevfyfwb
4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:972

C:\Windows\SysWOW64\msdt.exe
"C:\Windows\SysWOW64\msdt.exe"
2⤵
- Adds policy Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1988

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\lbaooyiqoz.exe"
3⤵
PID:1944

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:1100

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\2zz4hssyl78
Filesize
171KB

MD5
6629f2fca8fbc541cd84585ba0322e0a

SHA1
ee152ebf1a896a3e36423c10f2e82144e8d2637c

SHA256
cb50a336c419ed641855193c3c0467f29c60db1281dba1902b1fe4e23f67a57f

SHA512
25eb74a5362c67377a8030b4cc8c74f6c63151cb53fab167ff1387824c8bc4bcfe6d95d89cfd75344b2b1a0cd17fd4f28f54d83078fb8cc2e90e75703043359b

Download Submit
C:\Users\Admin\AppData\Local\Temp\enevfyfwb
Filesize
5KB

MD5
89a491b662b90b975d9e4a21c82922f7

SHA1
76feb91a683e49167ee4733a3c33036d488d13a1

SHA256
5341ab5d2d79a3589bad2eab39513a9445935a628f74acf2b0a92e0eb3c9f439

SHA512
41831f6d6b1c1c4f7aecf4a1f8c482e91992ffe3872c4e7e5e3cd5f8cde758fb54319935377af1d3239efa6c49afa3876e8421f3dbcd4e91fea3fec3e4a28638

Download Submit
C:\Users\Admin\AppData\Local\Temp\lbaooyiqoz.exe
Filesize
74KB

MD5
b0981fa438a30d097b95a96d1d7ec4b9

SHA1
e75ad5039db2bd35d56019da92cd8c71f95dbc4c

SHA256
f77848ff5808ce9a5a0d7732cbc15882c7453e4bd1c927bb62bdae198b4b7697

SHA512
be0257e995faa14ce18d9107078b4b6127ad5ce7c3fbbdda5aa1904d7f7eb41167398d36b124dc7296afc2d71df64e6e04a39b66fd7436b1b26a163773381eea

Download Submit
C:\Users\Admin\AppData\Local\Temp\lbaooyiqoz.exe
Filesize
74KB

MD5
b0981fa438a30d097b95a96d1d7ec4b9

SHA1
e75ad5039db2bd35d56019da92cd8c71f95dbc4c

SHA256
f77848ff5808ce9a5a0d7732cbc15882c7453e4bd1c927bb62bdae198b4b7697

SHA512
be0257e995faa14ce18d9107078b4b6127ad5ce7c3fbbdda5aa1904d7f7eb41167398d36b124dc7296afc2d71df64e6e04a39b66fd7436b1b26a163773381eea

Download Submit
C:\Users\Admin\AppData\Local\Temp\lbaooyiqoz.exe
Filesize
74KB

MD5
b0981fa438a30d097b95a96d1d7ec4b9

SHA1
e75ad5039db2bd35d56019da92cd8c71f95dbc4c

SHA256
f77848ff5808ce9a5a0d7732cbc15882c7453e4bd1c927bb62bdae198b4b7697

SHA512
be0257e995faa14ce18d9107078b4b6127ad5ce7c3fbbdda5aa1904d7f7eb41167398d36b124dc7296afc2d71df64e6e04a39b66fd7436b1b26a163773381eea

Download Submit
\Users\Admin\AppData\Local\Temp\lbaooyiqoz.exe
Filesize
74KB

MD5
b0981fa438a30d097b95a96d1d7ec4b9

SHA1
e75ad5039db2bd35d56019da92cd8c71f95dbc4c

SHA256
f77848ff5808ce9a5a0d7732cbc15882c7453e4bd1c927bb62bdae198b4b7697

SHA512
be0257e995faa14ce18d9107078b4b6127ad5ce7c3fbbdda5aa1904d7f7eb41167398d36b124dc7296afc2d71df64e6e04a39b66fd7436b1b26a163773381eea

Download Submit
\Users\Admin\AppData\Local\Temp\lbaooyiqoz.exe
Filesize
74KB

MD5
b0981fa438a30d097b95a96d1d7ec4b9

SHA1
e75ad5039db2bd35d56019da92cd8c71f95dbc4c

SHA256
f77848ff5808ce9a5a0d7732cbc15882c7453e4bd1c927bb62bdae198b4b7697

SHA512
be0257e995faa14ce18d9107078b4b6127ad5ce7c3fbbdda5aa1904d7f7eb41167398d36b124dc7296afc2d71df64e6e04a39b66fd7436b1b26a163773381eea

Download Submit
\Users\Admin\AppData\Local\Temp\lbaooyiqoz.exe
Filesize
74KB

MD5
b0981fa438a30d097b95a96d1d7ec4b9

SHA1
e75ad5039db2bd35d56019da92cd8c71f95dbc4c

SHA256
f77848ff5808ce9a5a0d7732cbc15882c7453e4bd1c927bb62bdae198b4b7697

SHA512
be0257e995faa14ce18d9107078b4b6127ad5ce7c3fbbdda5aa1904d7f7eb41167398d36b124dc7296afc2d71df64e6e04a39b66fd7436b1b26a163773381eea

Download Submit
memory/756-54-0x00000000763E1000-0x00000000763E3000-memory.dmp

Filesize
8KB

Download
memory/900-57-0x0000000000000000-mapping.dmp

Download
memory/972-65-0x000000000041F270-mapping.dmp

Download
memory/972-64-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/972-68-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/972-69-0x0000000000700000-0x0000000000A03000-memory.dmp

Filesize
3.0MB

Download
memory/972-70-0x0000000000470000-0x0000000000481000-memory.dmp

Filesize
68KB

Download
memory/1300-71-0x0000000006EE0000-0x000000000703B000-memory.dmp

Filesize
1.4MB

Download
memory/1300-79-0x0000000007040000-0x00000000071A5000-memory.dmp

Filesize
1.4MB

Download
memory/1944-74-0x0000000000000000-mapping.dmp

Download
memory/1988-72-0x0000000000000000-mapping.dmp

Download
memory/1988-75-0x0000000000640000-0x0000000000734000-memory.dmp

Filesize
976KB

Download
memory/1988-76-0x0000000000080000-0x00000000000AB000-memory.dmp

Filesize
172KB

Download
memory/1988-77-0x00000000021D0000-0x00000000024D3000-memory.dmp

Filesize
3.0MB

Download
memory/1988-78-0x0000000002000000-0x0000000002090000-memory.dmp

Filesize
576KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads