formbook | b0e5e12bea8386e6e06c82e4e25257b22649a608b2ef2a599332879983a000b0

General

Target

Confirmation transfer Ref No_00101334632192.exe
Size

954KB
MD5

8ecc522f8617adaf469f173400806dcf
SHA1

19aff3a1b435064dade4cc095f9d10a5b6ba9859
SHA256

b0e5e12bea8386e6e06c82e4e25257b22649a608b2ef2a599332879983a000b0
SHA512

8109fd4157101064a8d4f73f438aed7f39202ebff2ab539a11434c625661cdc2c88509e9ef3a5f616d3e8136e20dd3f386fd94009b9e7f9e1344a9167d65b542
SSDEEP

24576:ukqTTiwAAgEEY4olXoFZ6toHqwjwv0E6:ITQpo9aUvt

Score

10^/10

formbook q4k5 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

q4k5

Decoy

ZXN4RZ1db9JIzC7mhQ==

5+KpXZWys/DewpGQbChh6uPT5SNzFQ==

A8YuEKESXrzBhw==

uYH/9+Amwe1ZMkaR

KAusoWlA4I1Rt0P0jA==

AgIBy9IHiq8cdo4h47hB

PsX/0DrQRr+0hQ==

3z4v9UwXBjNTf48h47hB

bySPUkT+SFuT

VsQK5NkDks06l5z+TUG3eetd/twx2Mcjlg==

3+DcnQWuXG84sOphj5LEHIv/hA==

TOZXSDkjSHDoLk/pl2HYpOXJ

q7GGZ9KJrss/oTNwyxI=

2+O/k7y22Qo=

Joatk/qnSoO3q48h47hB

KT1UQcQ9yxWFQzCI

onRBEIHmYIl9XzhAIMtPLFAh5SNzFQ==

a8IY/+/oCDOj2TuM4Ohc

UlIOzyniF1sRnTNwyxI=

8UJiR6gijbvt+exXo7oCvdNV4BE=

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

Confirmation transfer Ref No_00101334632192.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Control Panel\International\Geo\Nation	Confirmation transfer Ref No_00101334632192.exe

Loads dropped DLL 1 IoCs

Processes:

chkdsk.exe

pid process

2028 chkdsk.exe

pid	process
2028	chkdsk.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

Confirmation transfer Ref No_00101334632192.exeConfirmation transfer Ref No_00101334632192.exechkdsk.exe

description	pid	process	target process
PID 1752 set thread context of 1480	1752	Confirmation transfer Ref No_00101334632192.exe	Confirmation transfer Ref No_00101334632192.exe
PID 1480 set thread context of 1236	1480	Confirmation transfer Ref No_00101334632192.exe	Explorer.EXE
PID 2028 set thread context of 1236	2028	chkdsk.exe	Explorer.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

1928 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

pid	process
1928	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-1-5-21-4063495947-34355257-727531523-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 22 IoCs

Processes:

Confirmation transfer Ref No_00101334632192.exepowershell.exeConfirmation transfer Ref No_00101334632192.exechkdsk.exe

pid	process
1752	Confirmation transfer Ref No_00101334632192.exe
1752	Confirmation transfer Ref No_00101334632192.exe
1932	powershell.exe
1480	Confirmation transfer Ref No_00101334632192.exe
1480	Confirmation transfer Ref No_00101334632192.exe
1480	Confirmation transfer Ref No_00101334632192.exe
1480	Confirmation transfer Ref No_00101334632192.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1236 Explorer.EXE

pid	process
1236	Explorer.EXE

Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

Confirmation transfer Ref No_00101334632192.exechkdsk.exe

pid	process
1480	Confirmation transfer Ref No_00101334632192.exe
1480	Confirmation transfer Ref No_00101334632192.exe
1480	Confirmation transfer Ref No_00101334632192.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

Confirmation transfer Ref No_00101334632192.exepowershell.exeConfirmation transfer Ref No_00101334632192.exechkdsk.exe

description	pid	process
Token: SeDebugPrivilege	1752	Confirmation transfer Ref No_00101334632192.exe
Token: SeDebugPrivilege	1932	powershell.exe
Token: SeDebugPrivilege	1480	Confirmation transfer Ref No_00101334632192.exe
Token: SeDebugPrivilege	2028	chkdsk.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1236 Explorer.EXE
1236 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1236 Explorer.EXE
1236 Explorer.EXE

pid	process
1236	Explorer.EXE
1236	Explorer.EXE

pid	process
1236	Explorer.EXE
1236	Explorer.EXE

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

Confirmation transfer Ref No_00101334632192.exeExplorer.EXEchkdsk.exe

description	pid	process	target process
PID 1752 wrote to memory of 1932	1752	Confirmation transfer Ref No_00101334632192.exe	powershell.exe
PID 1752 wrote to memory of 1932	1752	Confirmation transfer Ref No_00101334632192.exe	powershell.exe
PID 1752 wrote to memory of 1932	1752	Confirmation transfer Ref No_00101334632192.exe	powershell.exe
PID 1752 wrote to memory of 1932	1752	Confirmation transfer Ref No_00101334632192.exe	powershell.exe
PID 1752 wrote to memory of 1928	1752	Confirmation transfer Ref No_00101334632192.exe	schtasks.exe
PID 1752 wrote to memory of 1928	1752	Confirmation transfer Ref No_00101334632192.exe	schtasks.exe
PID 1752 wrote to memory of 1928	1752	Confirmation transfer Ref No_00101334632192.exe	schtasks.exe
PID 1752 wrote to memory of 1928	1752	Confirmation transfer Ref No_00101334632192.exe	schtasks.exe
PID 1752 wrote to memory of 1480	1752	Confirmation transfer Ref No_00101334632192.exe	Confirmation transfer Ref No_00101334632192.exe
PID 1752 wrote to memory of 1480	1752	Confirmation transfer Ref No_00101334632192.exe	Confirmation transfer Ref No_00101334632192.exe
PID 1752 wrote to memory of 1480	1752	Confirmation transfer Ref No_00101334632192.exe	Confirmation transfer Ref No_00101334632192.exe
PID 1752 wrote to memory of 1480	1752	Confirmation transfer Ref No_00101334632192.exe	Confirmation transfer Ref No_00101334632192.exe
PID 1752 wrote to memory of 1480	1752	Confirmation transfer Ref No_00101334632192.exe	Confirmation transfer Ref No_00101334632192.exe
PID 1752 wrote to memory of 1480	1752	Confirmation transfer Ref No_00101334632192.exe	Confirmation transfer Ref No_00101334632192.exe
PID 1752 wrote to memory of 1480	1752	Confirmation transfer Ref No_00101334632192.exe	Confirmation transfer Ref No_00101334632192.exe
PID 1236 wrote to memory of 2028	1236	Explorer.EXE	chkdsk.exe
PID 1236 wrote to memory of 2028	1236	Explorer.EXE	chkdsk.exe
PID 1236 wrote to memory of 2028	1236	Explorer.EXE	chkdsk.exe
PID 1236 wrote to memory of 2028	1236	Explorer.EXE	chkdsk.exe
PID 2028 wrote to memory of 1252	2028	chkdsk.exe	Firefox.exe
PID 2028 wrote to memory of 1252	2028	chkdsk.exe	Firefox.exe
PID 2028 wrote to memory of 1252	2028	chkdsk.exe	Firefox.exe
PID 2028 wrote to memory of 1252	2028	chkdsk.exe	Firefox.exe
PID 2028 wrote to memory of 1252	2028	chkdsk.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1236

C:\Users\Admin\AppData\Local\Temp\Confirmation transfer Ref No_00101334632192.exe
"C:\Users\Admin\AppData\Local\Temp\Confirmation transfer Ref No_00101334632192.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1752

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\PuscvCO.exe"
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1932

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\PuscvCO" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBEED.tmp"
3⤵
- Creates scheduled task(s)
PID:1928

C:\Users\Admin\AppData\Local\Temp\Confirmation transfer Ref No_00101334632192.exe
"C:\Users\Admin\AppData\Local\Temp\Confirmation transfer Ref No_00101334632192.exe"
3⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1480

C:\Windows\SysWOW64\chkdsk.exe
"C:\Windows\SysWOW64\chkdsk.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2028

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:1252

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

MD5
0f9a4e4ca93149baf63ee1cc186821f4

SHA1
9835115ee0b47a64112ef19ad772bfebcb464a38

SHA256
89ff05b30d030bd8f2acc15fc40fbf187a59ff739d829ebf898f441c42c93d08

SHA512
5068493b18fe6f93138894f3384819b07d7d2f761eda99d0af8f76688cc5fcc7e0bab1716ee597a58d3accdb068999ee648dfe4227ae677a62fbe98d37992966

Download Submit
\Users\Admin\AppData\Local\Temp\sqlite3.dll
Filesize
1.0MB

MD5
ce5c15b5092877974d5b6476ad1cb2d7

SHA1
76a6fc307d1524081cba1886d312df97c9dd658f

SHA256
1f1a186ea26bd2462ea2a9cf35a816b92caf0897fdf332af3a61569e0ba97b24

SHA512
bb9ced38c63d2a29e18c38f60020cfdf0161384cd4ad6328352626643becdf49f6b4bef47012391720344fdd8ad520aa802dcbbed15b5026d27eb93b0a839c90

Download Submit
memory/1236-87-0x0000000005F50000-0x000000000602B000-memory.dmp

Filesize
876KB

Download
memory/1236-84-0x0000000005F50000-0x000000000602B000-memory.dmp

Filesize
876KB

Download
memory/1236-77-0x0000000005DF0000-0x0000000005F4B000-memory.dmp

Filesize
1.4MB

Download
memory/1480-72-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/1480-75-0x0000000000422000-0x0000000000424000-memory.dmp

Filesize
8KB

Download
memory/1480-76-0x00000000001B0000-0x00000000001C0000-memory.dmp

Filesize
64KB

Download
memory/1480-74-0x0000000000990000-0x0000000000C93000-memory.dmp

Filesize
3.0MB

Download
memory/1480-65-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1480-64-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1480-68-0x00000000004012B0-mapping.dmp

Download
memory/1480-67-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1480-70-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1480-71-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1752-57-0x00000000004B0000-0x00000000004BE000-memory.dmp

Filesize
56KB

Download
memory/1752-55-0x0000000075111000-0x0000000075113000-memory.dmp

Filesize
8KB

Download
memory/1752-63-0x0000000004CD0000-0x0000000004D26000-memory.dmp

Filesize
344KB

Download
memory/1752-54-0x0000000000080000-0x0000000000176000-memory.dmp

Filesize
984KB

Download
memory/1752-58-0x0000000007F50000-0x0000000007FE0000-memory.dmp

Filesize
576KB

Download
memory/1752-56-0x0000000000490000-0x00000000004A6000-memory.dmp

Filesize
88KB

Download
memory/1928-60-0x0000000000000000-mapping.dmp

Download
memory/1932-59-0x0000000000000000-mapping.dmp

Download
memory/1932-78-0x000000006E400000-0x000000006E9AB000-memory.dmp

Filesize
5.7MB

Download
memory/1932-73-0x000000006E400000-0x000000006E9AB000-memory.dmp

Filesize
5.7MB

Download
memory/2028-80-0x0000000000820000-0x0000000000827000-memory.dmp

Filesize
28KB

Download
memory/2028-81-0x00000000000D0000-0x00000000000FD000-memory.dmp

Filesize
180KB

Download
memory/2028-82-0x0000000002090000-0x0000000002393000-memory.dmp

Filesize
3.0MB

Download
memory/2028-83-0x0000000001EB0000-0x0000000001F3F000-memory.dmp

Filesize
572KB

Download
memory/2028-79-0x0000000000000000-mapping.dmp

Download
memory/2028-85-0x00000000000D0000-0x00000000000FD000-memory.dmp

Filesize
180KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads