formbook | 03678658a1126e0a59f926cda88114c55bb23bfc0a93fbffcbb4be19b3f09ad6

Resubmissions

06-12-2022 13:34

221206-qt3zpscc76 10

06-12-2022 13:32

221206-qs4vlsfb4y 10

Analysis

max time kernel
167s
max time network
172s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
06-12-2022 13:32

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General

Target

c03dca4.exe
Size

445KB
MD5

7d88844c0ef5b442116161e9bc245ccf
SHA1

3a30a642d7ea1c0f5144cd5c416c7ea3c251e2e8
SHA256

530e856fb2f5665cc8862cf1db3ec2e6cfa8493c1497cf42e1e12121d147eadc
SHA512

b489268f1a60371460042730b51e94c4c44c8b4a304b10b7cb229ab043cfff16e09a71d0da5e899229f2bcea7423a5db5990d0dbad39d7a5d382d768fbb791eb
SSDEEP

12288:0CrXgPjJwADIOyBnKDUEo14cDnfmCyY4It1:Z7k9wAkAUEo1XnfSI

Score

10^/10

formbook t5ez rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

t5ez

Decoy

v+YaDdg/udazyV4Iyw==

MXDNPIhw1/8BP0Ud2fguBRZ/8nF6wQ==

WsTRjsGfK1Wt+wjFRn9mBQ==

TrAv42rPyfBfhpI=

2FrznhJCG6bpCgm9+n/Xq0cr

phy0dqeRgaeZzcuciHGgrkeVQw==

DIYHd2O24QEB

wVbxr0eqbQZMc4xwQF1W3NdmR2Xc

ncsN3VitpSp18jvXswKeJeQKA1DW

n/FT0RVVULr7fMV0Ykb8ztU=

OET6wvfsbaGp6O2/Rn9mBQ==

2Rb8gNoGR5GEwAeUhcs=

wR8Fc7imd8/3cQeUhcs=

rMZ/VOtX0kR/yV4Iyw==

9YIUqO7RR4iL5Cffi994

03AHmeAX+2F85Cnfi994

9QbOseAK0/c4SGJW

S1EDywDiYofETA==

ivZm1wDWR2hgAEFURn9mBQ==

D2pe4DygKUJKoLidIuwJo4PiKGhyZLPc

Signatures

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

Suspicious use of SetThreadContext 3 IoCs

Processes:

c03dca4.exeCasPol.exeexplorer.exe

description	pid	process	target process
PID 3596 set thread context of 4936	3596	c03dca4.exe	CasPol.exe
PID 4936 set thread context of 2016	4936	CasPol.exe	Explorer.EXE
PID 3472 set thread context of 2016	3472	explorer.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 42 IoCs

Processes:

c03dca4.exeCasPol.exeexplorer.exe

pid	process
3596	c03dca4.exe
3596	c03dca4.exe
4936	CasPol.exe
4936	CasPol.exe
4936	CasPol.exe
4936	CasPol.exe
4936	CasPol.exe
4936	CasPol.exe
4936	CasPol.exe
4936	CasPol.exe
3472	explorer.exe
3472	explorer.exe
3472	explorer.exe
3472	explorer.exe
3472	explorer.exe
3472	explorer.exe
3472	explorer.exe
3472	explorer.exe
3472	explorer.exe
3472	explorer.exe
3472	explorer.exe
3472	explorer.exe
3472	explorer.exe
3472	explorer.exe
3472	explorer.exe
3472	explorer.exe
3472	explorer.exe
3472	explorer.exe
3472	explorer.exe
3472	explorer.exe
3472	explorer.exe
3472	explorer.exe
3472	explorer.exe
3472	explorer.exe
3472	explorer.exe
3472	explorer.exe
3472	explorer.exe
3472	explorer.exe
3472	explorer.exe
3472	explorer.exe
3472	explorer.exe
3472	explorer.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2016 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

CasPol.exeexplorer.exe

pid process

4936 CasPol.exe
4936 CasPol.exe
4936 CasPol.exe
3472 explorer.exe
3472 explorer.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

c03dca4.exeCasPol.exeexplorer.exe

description pid process

Token: SeDebugPrivilege 3596 c03dca4.exe
Token: SeDebugPrivilege 4936 CasPol.exe
Token: SeDebugPrivilege 3472 explorer.exe

pid	process
2016	Explorer.EXE

pid	process
4936	CasPol.exe
4936	CasPol.exe
4936	CasPol.exe
3472	explorer.exe
3472	explorer.exe

description	pid	process
Token: SeDebugPrivilege	3596	c03dca4.exe
Token: SeDebugPrivilege	4936	CasPol.exe
Token: SeDebugPrivilege	3472	explorer.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

c03dca4.exeExplorer.EXE

description	pid	process	target process
PID 3596 wrote to memory of 4952	3596	c03dca4.exe	CasPol.exe
PID 3596 wrote to memory of 4952	3596	c03dca4.exe	CasPol.exe
PID 3596 wrote to memory of 4952	3596	c03dca4.exe	CasPol.exe
PID 3596 wrote to memory of 4936	3596	c03dca4.exe	CasPol.exe
PID 3596 wrote to memory of 4936	3596	c03dca4.exe	CasPol.exe
PID 3596 wrote to memory of 4936	3596	c03dca4.exe	CasPol.exe
PID 3596 wrote to memory of 4936	3596	c03dca4.exe	CasPol.exe
PID 3596 wrote to memory of 4936	3596	c03dca4.exe	CasPol.exe
PID 3596 wrote to memory of 4936	3596	c03dca4.exe	CasPol.exe
PID 2016 wrote to memory of 3472	2016	Explorer.EXE	explorer.exe
PID 2016 wrote to memory of 3472	2016	Explorer.EXE	explorer.exe
PID 2016 wrote to memory of 3472	2016	Explorer.EXE	explorer.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2016

C:\Users\Admin\AppData\Local\Temp\c03dca4.exe
"C:\Users\Admin\AppData\Local\Temp\c03dca4.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3596

C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"
3⤵
PID:4952

C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:4936

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
PID:3472

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2016-144-0x0000000002790000-0x0000000002918000-memory.dmp

Filesize
1.5MB

Download
memory/2016-154-0x0000000002C00000-0x0000000002CD1000-memory.dmp

Filesize
836KB

Download
memory/2016-153-0x0000000002C00000-0x0000000002CD1000-memory.dmp

Filesize
836KB

Download
memory/3472-149-0x0000000000490000-0x00000000004BD000-memory.dmp

Filesize
180KB

Download
memory/3472-147-0x0000000000000000-mapping.dmp

Download
memory/3472-152-0x0000000002720000-0x00000000027AF000-memory.dmp

Filesize
572KB

Download
memory/3472-151-0x0000000000490000-0x00000000004BD000-memory.dmp

Filesize
180KB

Download
memory/3472-150-0x0000000002990000-0x0000000002CDA000-memory.dmp

Filesize
3.3MB

Download
memory/3472-148-0x0000000000C40000-0x0000000001073000-memory.dmp

Filesize
4.2MB

Download
memory/3596-137-0x00007FFB162E0000-0x00007FFB16DA1000-memory.dmp

Filesize
10.8MB

Download
memory/3596-133-0x00007FFB162E0000-0x00007FFB16DA1000-memory.dmp

Filesize
10.8MB

Download
memory/3596-134-0x00007FFB162E0000-0x00007FFB16DA1000-memory.dmp

Filesize
10.8MB

Download
memory/3596-132-0x0000021BD0FB0000-0x0000021BD1024000-memory.dmp

Filesize
464KB

Download
memory/4936-141-0x0000000001930000-0x0000000001C7A000-memory.dmp

Filesize
3.3MB

Download
memory/4936-146-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/4936-145-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4936-135-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4936-143-0x0000000001920000-0x0000000001930000-memory.dmp

Filesize
64KB

Download
memory/4936-136-0x00000000004012B0-mapping.dmp

Download
memory/4936-140-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/4936-139-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download