formbook | 03678658a1126e0a59f926cda88114c55bb23bfc0a93fbffcbb4be19b3f09ad6

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
Blocklisted process makes network request 1 IoCs

Processes:

cscript.exe

flow pid process

8 1688 cscript.exe
Loads dropped DLL 1 IoCs

Processes:

cscript.exe

pid process

1688 cscript.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

flow	pid	process
8	1688	cscript.exe

pid	process
1688	cscript.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

c03dca4.exeCasPol.execscript.exe

description	pid	process	target process
PID 2036 set thread context of 1648	2036	c03dca4.exe	CasPol.exe
PID 1648 set thread context of 1208	1648	CasPol.exe	Explorer.EXE
PID 1648 set thread context of 1208	1648	CasPol.exe	Explorer.EXE
PID 1688 set thread context of 1208	1688	cscript.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

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

cscript.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-999675638-2867687379-27515722-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	cscript.exe

Suspicious behavior: EnumeratesProcesses 21 IoCs

Processes:

CasPol.execscript.exe

pid	process
1648	CasPol.exe
1648	CasPol.exe
1648	CasPol.exe
1648	CasPol.exe
1648	CasPol.exe
1688	cscript.exe
1688	cscript.exe
1688	cscript.exe
1688	cscript.exe
1688	cscript.exe
1688	cscript.exe
1688	cscript.exe
1688	cscript.exe
1688	cscript.exe
1688	cscript.exe
1688	cscript.exe
1688	cscript.exe
1688	cscript.exe
1688	cscript.exe
1688	cscript.exe
1688	cscript.exe

Suspicious behavior: MapViewOfSection 8 IoCs

Processes:

CasPol.execscript.exe

pid process

1648 CasPol.exe
1648 CasPol.exe
1648 CasPol.exe
1648 CasPol.exe
1688 cscript.exe
1688 cscript.exe
1688 cscript.exe
1688 cscript.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

CasPol.execscript.exe

description pid process

Token: SeDebugPrivilege 1648 CasPol.exe
Token: SeDebugPrivilege 1688 cscript.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1208 Explorer.EXE
1208 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1208 Explorer.EXE
1208 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1648	CasPol.exe
Token: SeDebugPrivilege	1688	cscript.exe

pid	process
1208	Explorer.EXE
1208	Explorer.EXE

pid	process
1208	Explorer.EXE
1208	Explorer.EXE

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

c03dca4.exeExplorer.EXEcscript.exe

description	pid	process	target process
PID 2036 wrote to memory of 1648	2036	c03dca4.exe	CasPol.exe
PID 2036 wrote to memory of 1648	2036	c03dca4.exe	CasPol.exe
PID 2036 wrote to memory of 1648	2036	c03dca4.exe	CasPol.exe
PID 2036 wrote to memory of 1648	2036	c03dca4.exe	CasPol.exe
PID 2036 wrote to memory of 1648	2036	c03dca4.exe	CasPol.exe
PID 2036 wrote to memory of 1648	2036	c03dca4.exe	CasPol.exe
PID 2036 wrote to memory of 1648	2036	c03dca4.exe	CasPol.exe
PID 1208 wrote to memory of 1688	1208	Explorer.EXE	cscript.exe
PID 1208 wrote to memory of 1688	1208	Explorer.EXE	cscript.exe
PID 1208 wrote to memory of 1688	1208	Explorer.EXE	cscript.exe
PID 1208 wrote to memory of 1688	1208	Explorer.EXE	cscript.exe
PID 1688 wrote to memory of 1772	1688	cscript.exe	Firefox.exe
PID 1688 wrote to memory of 1772	1688	cscript.exe	Firefox.exe
PID 1688 wrote to memory of 1772	1688	cscript.exe	Firefox.exe
PID 1688 wrote to memory of 1772	1688	cscript.exe	Firefox.exe
PID 1688 wrote to memory of 1772	1688	cscript.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1208
- 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:2036
- - 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:1648
- C:\Windows\SysWOW64\cscript.exe
  "C:\Windows\SysWOW64\cscript.exe"
  2⤵
  - Blocklisted process makes network request
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1688
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:1772

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\sqlite3.dll

Filesize
888KB

MD5
9c73b282279e74e40435132e61fda001

SHA1
63c7248e91b68fbde4641e3c5e2dc3e9d38671fa

SHA256
6710d91d77e1937dd5b46d96c0852042985dc78c4c51ce12d3e07a4cdb12c202

SHA512
02f9a01a3a5f74ef994ebb9e5f24c6870e2d48c8b99c429a63e74dad73fb581f0b52b2a86d651cafa414675b70a0e85b2e08c843d07e080fe69ee835e3c91108

Download Submit
memory/1208-64-0x0000000004810000-0x00000000048DC000-memory.dmp

Filesize
816KB

Download
memory/1208-78-0x0000000004CB0000-0x0000000004DAC000-memory.dmp

Filesize
1008KB

Download
memory/1208-75-0x0000000004CB0000-0x0000000004DAC000-memory.dmp

Filesize
1008KB

Download
memory/1208-67-0x00000000048E0000-0x0000000004993000-memory.dmp

Filesize
716KB

Download
memory/1648-57-0x00000000004012B0-mapping.dmp

Download
memory/1648-61-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/1648-62-0x00000000008A0000-0x0000000000BA3000-memory.dmp

Filesize
3.0MB

Download
memory/1648-63-0x00000000001A0000-0x00000000001B0000-memory.dmp

Filesize
64KB

Download
memory/1648-60-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1648-66-0x00000000001E0000-0x00000000001F0000-memory.dmp

Filesize
64KB

Download
memory/1648-59-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1648-56-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1648-69-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1648-70-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/1688-68-0x0000000000000000-mapping.dmp

Download
memory/1688-72-0x00000000021D0000-0x00000000024D3000-memory.dmp

Filesize
3.0MB

Download
memory/1688-73-0x0000000000070000-0x000000000009D000-memory.dmp

Filesize
180KB

Download
memory/1688-74-0x0000000000480000-0x000000000050F000-memory.dmp

Filesize
572KB

Download
memory/1688-71-0x0000000000DA0000-0x0000000000DC2000-memory.dmp

Filesize
136KB

Download
memory/1688-76-0x0000000000070000-0x000000000009D000-memory.dmp

Filesize
180KB

Download
memory/1688-77-0x0000000075C61000-0x0000000075C63000-memory.dmp

Filesize
8KB

Download
memory/2036-54-0x0000000000BF0000-0x0000000000C64000-memory.dmp

Filesize
464KB

Download
memory/2036-55-0x000000001A500000-0x000000001A572000-memory.dmp

Filesize
456KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads