formbook | ee559d67bcad95fc4e1e6c867908b0b84338472a30d28d34da415c7efbd48f2b

General

Target

Payment_4372889.exe
Size

735KB
MD5

d7e382bb4854061f9fc7a9806da0d7af
SHA1

07150c8377209b185e017d858f0cd6704ab2c732
SHA256

ee559d67bcad95fc4e1e6c867908b0b84338472a30d28d34da415c7efbd48f2b
SHA512

2f1ae72ebc57a8b312740425113240a0de56aab10c2248f31b7f66e452a30f2583e32bfaaaacf9f3f4ee692aef09196477075441d5be24ad6be7630137b22a25

Score

10^/10

formbook evasion rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

C2

http://www.merckcbd.com/dei5/

Decoy

studiomullerphoto.com

reallionairewear.com

dogsalondoggy-tail.com

excelmache.net

bigdiscounters.com

7986799.com

ignition.guru

xiaoxu.info

jpinpd.com

solpool.info

uchooswrewards.com

everestengineeringworks.com

qianglongzhipin.com

deepimper-325.com

appliedrate.com

radsazemehr.com

vivabematividadesfisicas.com

capacitalo.com

somecore.com

listingclass.net

Signatures

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

Formbook Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/992-10-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/992-11-0x000000000041ECD0-mapping.dmp	formbook
behavioral1/memory/364-21-0x0000000000080000-0x00000000000AE000-memory.dmp	formbook

Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

Payment_4372889.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	Payment_4372889.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	Payment_4372889.exe

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

928 cmd.exe

pid	process
928	cmd.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

Payment_4372889.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	Payment_4372889.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	Payment_4372889.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

Payment_4372889.exePayment_4372889.exeexplorer.exe

description	pid	process	target process
PID 1668 set thread context of 992	1668	Payment_4372889.exe	Payment_4372889.exe
PID 992 set thread context of 1248	992	Payment_4372889.exe	Explorer.EXE
PID 364 set thread context of 1248	364	explorer.exe	Explorer.EXE

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

1204 schtasks.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

Payment_4372889.exePayment_4372889.exeexplorer.exe

pid process

1668 Payment_4372889.exe
992 Payment_4372889.exe
992 Payment_4372889.exe
364 explorer.exe
364 explorer.exe
364 explorer.exe
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

Payment_4372889.exeexplorer.exe

pid process

992 Payment_4372889.exe
992 Payment_4372889.exe
992 Payment_4372889.exe
364 explorer.exe
364 explorer.exe

pid	process
1204	schtasks.exe

pid	process
1668	Payment_4372889.exe
992	Payment_4372889.exe
992	Payment_4372889.exe
364	explorer.exe
364	explorer.exe
364	explorer.exe

pid	process
992	Payment_4372889.exe
992	Payment_4372889.exe
992	Payment_4372889.exe
364	explorer.exe
364	explorer.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

Payment_4372889.exePayment_4372889.exeexplorer.exe

description	pid	process
Token: SeDebugPrivilege	1668	Payment_4372889.exe
Token: SeDebugPrivilege	992	Payment_4372889.exe
Token: SeDebugPrivilege	364	explorer.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

Payment_4372889.exeExplorer.EXEexplorer.exe

description	pid	process	target process
PID 1668 wrote to memory of 1204	1668	Payment_4372889.exe	schtasks.exe
PID 1668 wrote to memory of 1204	1668	Payment_4372889.exe	schtasks.exe
PID 1668 wrote to memory of 1204	1668	Payment_4372889.exe	schtasks.exe
PID 1668 wrote to memory of 1204	1668	Payment_4372889.exe	schtasks.exe
PID 1668 wrote to memory of 992	1668	Payment_4372889.exe	Payment_4372889.exe
PID 1668 wrote to memory of 992	1668	Payment_4372889.exe	Payment_4372889.exe
PID 1668 wrote to memory of 992	1668	Payment_4372889.exe	Payment_4372889.exe
PID 1668 wrote to memory of 992	1668	Payment_4372889.exe	Payment_4372889.exe
PID 1668 wrote to memory of 992	1668	Payment_4372889.exe	Payment_4372889.exe
PID 1668 wrote to memory of 992	1668	Payment_4372889.exe	Payment_4372889.exe
PID 1668 wrote to memory of 992	1668	Payment_4372889.exe	Payment_4372889.exe
PID 1248 wrote to memory of 364	1248	Explorer.EXE	explorer.exe
PID 1248 wrote to memory of 364	1248	Explorer.EXE	explorer.exe
PID 1248 wrote to memory of 364	1248	Explorer.EXE	explorer.exe
PID 1248 wrote to memory of 364	1248	Explorer.EXE	explorer.exe
PID 364 wrote to memory of 928	364	explorer.exe	cmd.exe
PID 364 wrote to memory of 928	364	explorer.exe	cmd.exe
PID 364 wrote to memory of 928	364	explorer.exe	cmd.exe
PID 364 wrote to memory of 928	364	explorer.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1248

C:\Users\Admin\AppData\Local\Temp\Payment_4372889.exe
"C:\Users\Admin\AppData\Local\Temp\Payment_4372889.exe"
2⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1668

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UEwFjeYBtPwSqZ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6133.tmp"
3⤵
- Creates scheduled task(s)
PID:1204

C:\Users\Admin\AppData\Local\Temp\Payment_4372889.exe
"C:\Users\Admin\AppData\Local\Temp\Payment_4372889.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:992

C:\Windows\SysWOW64\explorer.exe
"C:\Windows\SysWOW64\explorer.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:364

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\Payment_4372889.exe"
3⤵
- Deletes itself
PID:928

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Query Registry

4

T1012

Virtualization/Sandbox Evasion

2

T1497

System Information Discovery

2

T1082

Peripheral Device Discovery

1

T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp6133.tmp
MD5
cd18588e75fbff80bc48855ca636e0e5

SHA1
a754c7ae74fdecaeb03c019c6120e4a170d71cb5

SHA256
1fef465fdae70b1d17f7de5d8c5a5e306c1f34c5dedbc41588b0f52f3c42f5d9

SHA512
97cd0e562af2f448c4c82843da35b1aed6f635dcb3fddd325c8d7cfb4208c56080357d1fd4734e642edeb042377d35e63f8534b2a6eb30fbaa0b4fac71f6371d

Download Submit
memory/364-16-0x0000000000000000-mapping.dmp

Download
memory/364-23-0x0000000000A80000-0x0000000000B13000-memory.dmp

Filesize
588KB

Download
memory/364-22-0x0000000002500000-0x0000000002803000-memory.dmp

Filesize
3.0MB

Download
memory/364-21-0x0000000000080000-0x00000000000AE000-memory.dmp

Filesize
184KB

Download
memory/364-20-0x0000000000E70000-0x00000000010F1000-memory.dmp

Filesize
2.5MB

Download
memory/364-18-0x0000000074691000-0x0000000074693000-memory.dmp

Filesize
8KB

Download
memory/364-17-0x0000000074B31000-0x0000000074B33000-memory.dmp

Filesize
8KB

Download
memory/928-19-0x0000000000000000-mapping.dmp

Download
memory/992-14-0x0000000000140000-0x0000000000154000-memory.dmp

Filesize
80KB

Download
memory/992-13-0x0000000000970000-0x0000000000C73000-memory.dmp

Filesize
3.0MB

Download
memory/992-11-0x000000000041ECD0-mapping.dmp

Download
memory/992-10-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1204-8-0x0000000000000000-mapping.dmp

Download
memory/1248-15-0x0000000004250000-0x00000000043BC000-memory.dmp

Filesize
1.4MB

Download
memory/1668-2-0x0000000074110000-0x00000000747FE000-memory.dmp

Filesize
6.9MB

Download
memory/1668-7-0x0000000004870000-0x00000000048DB000-memory.dmp

Filesize
428KB

Download
memory/1668-6-0x0000000000480000-0x0000000000493000-memory.dmp

Filesize
76KB

Download
memory/1668-5-0x0000000004E20000-0x0000000004E21000-memory.dmp

Filesize
4KB

Download
memory/1668-3-0x0000000000D90000-0x0000000000D91000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads