formbook | cfd85f7690b503154bad4aed263e953b0b5da84cd8dc8eaa0b99302be53f36d9

General

Target

PI Confirmation.exe
Size

669KB
MD5

39c13f82ae8a3803684959e14772c5b0
SHA1

5284c7308994dbe3348c320499c3756aeae50f1d
SHA256

f4c535616a04819e9553cb3dbac66db0021065fb89a5e5c799c0b4eb301fb582
SHA512

55f7bfbf2cf916bee80d51827fbb8394f97c2fee12c2ea060b52e06b51c996c43bd4475dae7464cce71915e14ed7151dbee23252fb2e6f4046542488d68cf442

Score

10^/10

formbook ev08 persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

3.9

Campaign

ev08

Decoy

elysianhomesanddesign.com

emplytics.com

rx-server.com

yunkeguanjia.com

069xke.info

xgltnpzoai.biz

vizebasvurusuislemi.com

willenochhardscape.com

luciovicencio.com

369zhangting.com

dealsamzn.com

epsilontech.net

longzhimy.com

drfenxiyi.com

perfecttiger.win

jon-lisa.com

projeen.com

tpak4.com

telurasinjulak.com

grhcew.men

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata

Formbook Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1724-63-0x0000000000400000-0x000000000042A000-memory.dmp	formbook
behavioral1/memory/1724-64-0x000000000041B620-mapping.dmp	formbook
behavioral1/memory/816-72-0x00000000000C0000-0x00000000000EA000-memory.dmp	formbook

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

cmmon32.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\YJSDLR18N = "C:\\Program Files (x86)\\Rsbu\\confign0ex.exe"	cmmon32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	cmmon32.exe

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1268 cmd.exe

pid	process
1268	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

PI Confirmation.exePI Confirmation.execmmon32.exe

description	pid	process	target process
PID 1944 set thread context of 1724	1944	PI Confirmation.exe	PI Confirmation.exe
PID 1724 set thread context of 1380	1724	PI Confirmation.exe	Explorer.EXE
PID 816 set thread context of 1380	816	cmmon32.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

cmmon32.exe

description ioc process

File opened for modification C:\Program Files (x86)\Rsbu\confign0ex.exe cmmon32.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

2032 schtasks.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Rsbu\confign0ex.exe	cmmon32.exe

pid	process
2032	schtasks.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

cmmon32.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-1819626980-2277161760-1023733287-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	cmmon32.exe

Suspicious behavior: EnumeratesProcesses 21 IoCs

Processes:

PI Confirmation.execmmon32.exe

pid	process
1724	PI Confirmation.exe
1724	PI Confirmation.exe
816	cmmon32.exe
816	cmmon32.exe
816	cmmon32.exe
816	cmmon32.exe
816	cmmon32.exe
816	cmmon32.exe
816	cmmon32.exe
816	cmmon32.exe
816	cmmon32.exe
816	cmmon32.exe
816	cmmon32.exe
816	cmmon32.exe
816	cmmon32.exe
816	cmmon32.exe
816	cmmon32.exe
816	cmmon32.exe
816	cmmon32.exe
816	cmmon32.exe
816	cmmon32.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

PI Confirmation.execmmon32.exe

pid process

1724 PI Confirmation.exe
1724 PI Confirmation.exe
1724 PI Confirmation.exe
816 cmmon32.exe
816 cmmon32.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

PI Confirmation.execmmon32.exe

description pid process

Token: SeDebugPrivilege 1724 PI Confirmation.exe
Token: SeDebugPrivilege 816 cmmon32.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1380 Explorer.EXE
1380 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1380 Explorer.EXE
1380 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1724	PI Confirmation.exe
Token: SeDebugPrivilege	816	cmmon32.exe

pid	process
1380	Explorer.EXE
1380	Explorer.EXE

pid	process
1380	Explorer.EXE
1380	Explorer.EXE

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

PI Confirmation.exeExplorer.EXEcmmon32.exe

description	pid	process	target process
PID 1944 wrote to memory of 2032	1944	PI Confirmation.exe	schtasks.exe
PID 1944 wrote to memory of 2032	1944	PI Confirmation.exe	schtasks.exe
PID 1944 wrote to memory of 2032	1944	PI Confirmation.exe	schtasks.exe
PID 1944 wrote to memory of 2032	1944	PI Confirmation.exe	schtasks.exe
PID 1944 wrote to memory of 1724	1944	PI Confirmation.exe	PI Confirmation.exe
PID 1944 wrote to memory of 1724	1944	PI Confirmation.exe	PI Confirmation.exe
PID 1944 wrote to memory of 1724	1944	PI Confirmation.exe	PI Confirmation.exe
PID 1944 wrote to memory of 1724	1944	PI Confirmation.exe	PI Confirmation.exe
PID 1944 wrote to memory of 1724	1944	PI Confirmation.exe	PI Confirmation.exe
PID 1944 wrote to memory of 1724	1944	PI Confirmation.exe	PI Confirmation.exe
PID 1944 wrote to memory of 1724	1944	PI Confirmation.exe	PI Confirmation.exe
PID 1380 wrote to memory of 816	1380	Explorer.EXE	cmmon32.exe
PID 1380 wrote to memory of 816	1380	Explorer.EXE	cmmon32.exe
PID 1380 wrote to memory of 816	1380	Explorer.EXE	cmmon32.exe
PID 1380 wrote to memory of 816	1380	Explorer.EXE	cmmon32.exe
PID 816 wrote to memory of 1268	816	cmmon32.exe	cmd.exe
PID 816 wrote to memory of 1268	816	cmmon32.exe	cmd.exe
PID 816 wrote to memory of 1268	816	cmmon32.exe	cmd.exe
PID 816 wrote to memory of 1268	816	cmmon32.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:1380

C:\Users\Admin\AppData\Local\Temp\PI Confirmation.exe
"C:\Users\Admin\AppData\Local\Temp\PI Confirmation.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1944

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\btbKAIclCxOrzu" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8C97.tmp"
3⤵
- Creates scheduled task(s)
PID:2032

C:\Users\Admin\AppData\Local\Temp\PI Confirmation.exe
"{path}"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1724

C:\Windows\SysWOW64\cmmon32.exe
"C:\Windows\SysWOW64\cmmon32.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:816

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\PI Confirmation.exe"
3⤵
- Deletes itself
PID:1268

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

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp8C97.tmp
Filesize
1KB

MD5
b0582b202489f6f3fe4af04a6e7fb91c

SHA1
975bfe83f639a24b6dd3f4f4a0c3db16e5499791

SHA256
0860835019da2f8ad932c7d4b561230a437f29dca4827769267a2723302eceff

SHA512
daef2044724338e7af2ab1be516cc313604e45c9a0f802ed9a8f02089eeffc5abd5059997506fef3cdacc07e6f2f2dcd688331538dc75d21c3749dbc62ab1768

Download Submit
C:\Users\Admin\AppData\Roaming\4024-QV2\402logim.jpeg
Filesize
69KB

MD5
2856e2656b815b919ca23b4688dd1e93

SHA1
6ecccabec2493e63e0b256e13d021d471e0b1b3b

SHA256
a6a6f3f03af4da80b798185a5a872c8cf898092014e07598ed51c3ff4e8d3835

SHA512
7349b6c4ed2111dd9bab2792192b361931fcd998169a186b1f7bf6e868c2372f0cb6026884ffbfb6a99da5d294028274be124963ec09023bfbbb78db1d742288

Download Submit
C:\Users\Admin\AppData\Roaming\4024-QV2\402logri.ini
Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\4024-QV2\402logrv.ini
Filesize
40B

MD5
ba3b6bc807d4f76794c4b81b09bb9ba5

SHA1
24cb89501f0212ff3095ecc0aba97dd563718fb1

SHA256
6eebf968962745b2e9de2ca969af7c424916d4e3fe3cc0bb9b3d414abfce9507

SHA512
ecd07e601fc9e3cfc39addd7bd6f3d7f7ff3253afb40bf536e9eaac5a4c243e5ec40fbfd7b216cb0ea29f2517419601e335e33ba19dea4a46f65e38694d465bf

Download Submit
memory/816-71-0x0000000000BB0000-0x0000000000BBD000-memory.dmp

Filesize
52KB

Download
memory/816-73-0x0000000001FC0000-0x00000000022C3000-memory.dmp

Filesize
3.0MB

Download
memory/816-74-0x0000000000930000-0x00000000009C3000-memory.dmp

Filesize
588KB

Download
memory/816-72-0x00000000000C0000-0x00000000000EA000-memory.dmp

Filesize
168KB

Download
memory/816-69-0x0000000000000000-mapping.dmp

Download
memory/1268-70-0x0000000000000000-mapping.dmp

Download
memory/1380-68-0x00000000064E0000-0x00000000065F4000-memory.dmp

Filesize
1.1MB

Download
memory/1380-75-0x0000000003C30000-0x0000000003CE6000-memory.dmp

Filesize
728KB

Download
memory/1724-60-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/1724-63-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/1724-67-0x00000000002B0000-0x00000000002C4000-memory.dmp

Filesize
80KB

Download
memory/1724-61-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/1724-64-0x000000000041B620-mapping.dmp

Download
memory/1724-66-0x0000000000830000-0x0000000000B33000-memory.dmp

Filesize
3.0MB

Download
memory/1944-54-0x0000000000070000-0x000000000011E000-memory.dmp

Filesize
696KB

Download
memory/1944-57-0x00000000753C1000-0x00000000753C3000-memory.dmp

Filesize
8KB

Download
memory/1944-56-0x0000000000650000-0x0000000000688000-memory.dmp

Filesize
224KB

Download
memory/1944-55-0x00000000002B0000-0x00000000002B8000-memory.dmp

Filesize
32KB

Download
memory/2032-58-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads