formbook | ecc540938addc1a440ef6ceb7714a0b45153c04c28df4395e3de18181439341a

General

Target

Shipping documents PDF.exe
Size

831KB
MD5

81b0bdef857aa70ba8bfe0cb6d02f727
SHA1

328ce667e6d7fff59c3f27c0fcda338159c37c6f
SHA256

ecc540938addc1a440ef6ceb7714a0b45153c04c28df4395e3de18181439341a
SHA512

2b9c6596589265ed4a849d14e10cebff7fdac9a9a0bf7b4a6e33b41b38151a6f63aeb78b4c69e74b6a90be07c470bb86d8da2db988e2863f778780e4c07e238b

Score

10^/10

formbook rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

C2

http://w��5 �@q[*��S=��m

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/1672-65-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/1672-66-0x000000000041EAC0-mapping.dmp	formbook
behavioral1/memory/1944-74-0x0000000000080000-0x00000000000AE000-memory.dmp	formbook

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

276 cmd.exe

pid	process
276	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

Shipping documents PDF.exeShipping documents PDF.execolorcpl.exe

description	pid	process	target process
PID 1932 set thread context of 1672	1932	Shipping documents PDF.exe	Shipping documents PDF.exe
PID 1672 set thread context of 1288	1672	Shipping documents PDF.exe	Explorer.EXE
PID 1944 set thread context of 1288	1944	colorcpl.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

340 schtasks.exe

pid	process
340	schtasks.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

Processes:

Shipping documents PDF.exeShipping documents PDF.execolorcpl.exe

pid	process
1932	Shipping documents PDF.exe
1932	Shipping documents PDF.exe
1932	Shipping documents PDF.exe
1672	Shipping documents PDF.exe
1672	Shipping documents PDF.exe
1944	colorcpl.exe
1944	colorcpl.exe
1944	colorcpl.exe
1944	colorcpl.exe
1944	colorcpl.exe
1944	colorcpl.exe
1944	colorcpl.exe
1944	colorcpl.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

Shipping documents PDF.execolorcpl.exe

pid process

1672 Shipping documents PDF.exe
1672 Shipping documents PDF.exe
1672 Shipping documents PDF.exe
1944 colorcpl.exe
1944 colorcpl.exe

pid	process
1672	Shipping documents PDF.exe
1672	Shipping documents PDF.exe
1672	Shipping documents PDF.exe
1944	colorcpl.exe
1944	colorcpl.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

Shipping documents PDF.exeShipping documents PDF.execolorcpl.exe

description	pid	process
Token: SeDebugPrivilege	1932	Shipping documents PDF.exe
Token: SeDebugPrivilege	1672	Shipping documents PDF.exe
Token: SeDebugPrivilege	1944	colorcpl.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

Shipping documents PDF.exeExplorer.EXEcolorcpl.exe

description	pid	process	target process
PID 1932 wrote to memory of 340	1932	Shipping documents PDF.exe	schtasks.exe
PID 1932 wrote to memory of 340	1932	Shipping documents PDF.exe	schtasks.exe
PID 1932 wrote to memory of 340	1932	Shipping documents PDF.exe	schtasks.exe
PID 1932 wrote to memory of 340	1932	Shipping documents PDF.exe	schtasks.exe
PID 1932 wrote to memory of 1672	1932	Shipping documents PDF.exe	Shipping documents PDF.exe
PID 1932 wrote to memory of 1672	1932	Shipping documents PDF.exe	Shipping documents PDF.exe
PID 1932 wrote to memory of 1672	1932	Shipping documents PDF.exe	Shipping documents PDF.exe
PID 1932 wrote to memory of 1672	1932	Shipping documents PDF.exe	Shipping documents PDF.exe
PID 1932 wrote to memory of 1672	1932	Shipping documents PDF.exe	Shipping documents PDF.exe
PID 1932 wrote to memory of 1672	1932	Shipping documents PDF.exe	Shipping documents PDF.exe
PID 1932 wrote to memory of 1672	1932	Shipping documents PDF.exe	Shipping documents PDF.exe
PID 1288 wrote to memory of 1944	1288	Explorer.EXE	colorcpl.exe
PID 1288 wrote to memory of 1944	1288	Explorer.EXE	colorcpl.exe
PID 1288 wrote to memory of 1944	1288	Explorer.EXE	colorcpl.exe
PID 1288 wrote to memory of 1944	1288	Explorer.EXE	colorcpl.exe
PID 1944 wrote to memory of 276	1944	colorcpl.exe	cmd.exe
PID 1944 wrote to memory of 276	1944	colorcpl.exe	cmd.exe
PID 1944 wrote to memory of 276	1944	colorcpl.exe	cmd.exe
PID 1944 wrote to memory of 276	1944	colorcpl.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1288

C:\Users\Admin\AppData\Local\Temp\Shipping documents PDF.exe
"C:\Users\Admin\AppData\Local\Temp\Shipping documents PDF.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1932

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tFqKFDvgHq" /XML "C:\Users\Admin\AppData\Local\Temp\tmp53FA.tmp"
3⤵
- Creates scheduled task(s)
PID:340

C:\Users\Admin\AppData\Local\Temp\Shipping documents PDF.exe
"C:\Users\Admin\AppData\Local\Temp\Shipping documents PDF.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1672

C:\Windows\SysWOW64\colorcpl.exe
"C:\Windows\SysWOW64\colorcpl.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1944

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\Shipping documents PDF.exe"
3⤵
- Deletes itself
PID:276

Network

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

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\tmp53FA.tmp
MD5
e1591eda1eaa5be908428ffd78793bdf

SHA1
4ce384294d23143ac86f038d290a3a19c5d9ae95

SHA256
2acca89133912be935c597d5f1b2cd48089868fcb18fd6a62f3c94f9c8a18c88

SHA512
a9cb647796b314845af63901edc08e08f97b7aaf029f0c5ac27aaed173c82e9cfec938e22649d3f4222fa946ad8a5ec41e3b00d9fbafd5b367c27c87e2ef0377

Download Submit
memory/276-72-0x0000000000000000-mapping.dmp

Download
memory/340-63-0x0000000000000000-mapping.dmp

Download
memory/1288-69-0x0000000003B60000-0x0000000003C16000-memory.dmp

Filesize
728KB

Download
memory/1288-77-0x0000000007090000-0x00000000071DF000-memory.dmp

Filesize
1.3MB

Download
memory/1672-68-0x0000000000350000-0x0000000000364000-memory.dmp

Filesize
80KB

Download
memory/1672-65-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1672-66-0x000000000041EAC0-mapping.dmp

Download
memory/1672-67-0x0000000000970000-0x0000000000C73000-memory.dmp

Filesize
3.0MB

Download
memory/1932-62-0x000000007EF40000-0x000000007EF41000-memory.dmp

Filesize
4KB

Download
memory/1932-61-0x0000000000B41000-0x0000000000B42000-memory.dmp

Filesize
4KB

Download
memory/1932-60-0x0000000000B40000-0x0000000000B41000-memory.dmp

Filesize
4KB

Download
memory/1932-59-0x0000000074FB1000-0x0000000074FB3000-memory.dmp

Filesize
8KB

Download
memory/1944-70-0x0000000000000000-mapping.dmp

Download
memory/1944-73-0x0000000000880000-0x0000000000898000-memory.dmp

Filesize
96KB

Download
memory/1944-75-0x0000000001FE0000-0x00000000022E3000-memory.dmp

Filesize
3.0MB

Download
memory/1944-74-0x0000000000080000-0x00000000000AE000-memory.dmp

Filesize
184KB

Download
memory/1944-76-0x0000000001E30000-0x0000000001EC3000-memory.dmp

Filesize
588KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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