formbook | 530e856fb2f5665cc8862cf1db3ec2e6cfa8493c1497cf42e1e12121d147eadc

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.exeipconfig.exe

description	pid	process	target process
PID 2340 set thread context of 804	2340	c03dca4.exe	CasPol.exe
PID 804 set thread context of 1076	804	CasPol.exe	Explorer.EXE
PID 1000 set thread context of 1076	1000	ipconfig.exe	Explorer.EXE

Gathers network information 2 TTPs 1 IoCs
Uses commandline utility to view network configuration.

System Information Discovery
T1082

Command-Line Interface
T1059

Processes:

ipconfig.exe

pid process

1000 ipconfig.exe

pid	process
1000	ipconfig.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

ipconfig.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	ipconfig.exe

Suspicious behavior: EnumeratesProcesses 60 IoCs

Processes:

CasPol.exeipconfig.exe

pid	process
804	CasPol.exe
804	CasPol.exe
804	CasPol.exe
804	CasPol.exe
804	CasPol.exe
804	CasPol.exe
804	CasPol.exe
804	CasPol.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe
1000	ipconfig.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1076 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

CasPol.exeipconfig.exe

pid process

804 CasPol.exe
804 CasPol.exe
804 CasPol.exe
1000 ipconfig.exe
1000 ipconfig.exe
1000 ipconfig.exe
1000 ipconfig.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

CasPol.exeipconfig.exe

description pid process

Token: SeDebugPrivilege 804 CasPol.exe
Token: SeDebugPrivilege 1000 ipconfig.exe

pid	process
1076	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	804	CasPol.exe
Token: SeDebugPrivilege	1000	ipconfig.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

c03dca4.exeExplorer.EXEipconfig.exe

description	pid	process	target process
PID 2340 wrote to memory of 804	2340	c03dca4.exe	CasPol.exe
PID 2340 wrote to memory of 804	2340	c03dca4.exe	CasPol.exe
PID 2340 wrote to memory of 804	2340	c03dca4.exe	CasPol.exe
PID 2340 wrote to memory of 804	2340	c03dca4.exe	CasPol.exe
PID 2340 wrote to memory of 804	2340	c03dca4.exe	CasPol.exe
PID 2340 wrote to memory of 804	2340	c03dca4.exe	CasPol.exe
PID 1076 wrote to memory of 1000	1076	Explorer.EXE	ipconfig.exe
PID 1076 wrote to memory of 1000	1076	Explorer.EXE	ipconfig.exe
PID 1076 wrote to memory of 1000	1076	Explorer.EXE	ipconfig.exe
PID 1000 wrote to memory of 1060	1000	ipconfig.exe	Firefox.exe
PID 1000 wrote to memory of 1060	1000	ipconfig.exe	Firefox.exe
PID 1000 wrote to memory of 1060	1000	ipconfig.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:1076
- C:\Users\Admin\AppData\Local\Temp\c03dca4.exe
  "C:\Users\Admin\AppData\Local\Temp\c03dca4.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2340
- - 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:804
- C:\Windows\SysWOW64\ipconfig.exe
  "C:\Windows\SysWOW64\ipconfig.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Gathers network information
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1000
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:1060

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Command-Line Interface

1

T1059

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/804-142-0x0000000000F70000-0x0000000000F80000-memory.dmp

Filesize
64KB

Download
memory/804-146-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/804-134-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/804-135-0x00000000004012B0-mapping.dmp

Download
memory/804-145-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/804-138-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/804-139-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/804-141-0x0000000001500000-0x000000000184A000-memory.dmp

Filesize
3.3MB

Download
memory/1000-144-0x0000000000000000-mapping.dmp

Download
memory/1000-147-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1000-148-0x0000000000CC0000-0x0000000000CED000-memory.dmp

Filesize
180KB

Download
memory/1000-149-0x0000000001370000-0x00000000016BA000-memory.dmp

Filesize
3.3MB

Download
memory/1000-150-0x0000000001200000-0x000000000128F000-memory.dmp

Filesize
572KB

Download
memory/1000-152-0x0000000000CC0000-0x0000000000CED000-memory.dmp

Filesize
180KB

Download
memory/1076-143-0x0000000002620000-0x0000000002755000-memory.dmp

Filesize
1.2MB

Download
memory/1076-151-0x00000000078B0000-0x00000000079F1000-memory.dmp

Filesize
1.3MB

Download
memory/1076-153-0x00000000078B0000-0x00000000079F1000-memory.dmp

Filesize
1.3MB

Download
memory/2340-132-0x000002D9BCB50000-0x000002D9BCBC4000-memory.dmp

Filesize
464KB

Download
memory/2340-137-0x00007FF834C30000-0x00007FF8356F1000-memory.dmp

Filesize
10.8MB

Download
memory/2340-133-0x00007FF834C30000-0x00007FF8356F1000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads