formbook | eb4d78c2f2b63ac5364a8a86b93a0ef28c10d5c863b5bfc344e41cc29acd985e

General

Target

eb4d78c2f2b63ac5364a8a86b93a0ef28c10d5c863b5bfc344e41cc29acd985eN.exe
Size

1.1MB
MD5

bfe1378a69ec98a4b958737ef4fcee70
SHA1

0a97640ccbb63619f24f4d38f22af8dc90743a32
SHA256

eb4d78c2f2b63ac5364a8a86b93a0ef28c10d5c863b5bfc344e41cc29acd985e
SHA512

c949923045ffb37e2e1fe4bded6e6c1608edc7531010f55cb633db415649804de4a7b38b365cf31a2d05a7aaaf63b5dc5a347ef854fcd7fa90e9d2d2816c397d
SSDEEP

24576:Vu6J33O0c+JY5UZ+XC0kGso6Faz+mpj0BGPJerPPkii6WY:3u0c++OCvkGs9Faz+MjgGMbsY

Score

10^/10

formbook at22 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

at22

Decoy

etween-us.online

sphaleia.net

ental-implants-78350.bond

q4a.lat

commerce-97292.bond

linds-curtains-38811.bond

gyptevoyages.net

landofigueroa-abogados.net

cuitis.xyz

hantom.city

yzk.online

afikabmedan.store

ome-remodeling-67289.bond

ebpage-klzdxrhnazi.shop

eject.lol

rismart.xyz

nfluencer-marketing-72407.bond

ksolotl.xyz

ebsbayrntilrmizin93.xyz

pps-75399.bond

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/2592-7-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2592-10-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2128-15-0x0000000000800000-0x000000000082F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1416 set thread context of 2592	1416	eb4d78c2f2b63ac5364a8a86b93a0ef28c10d5c863b5bfc344e41cc29acd985eN.exe	83
PID 2592 set thread context of 3428	2592	svchost.exe	55
PID 2128 set thread context of 3428	2128	NETSTAT.EXE	55

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	eb4d78c2f2b63ac5364a8a86b93a0ef28c10d5c863b5bfc344e41cc29acd985eN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NETSTAT.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
2128	NETSTAT.EXE

Suspicious behavior: EnumeratesProcesses 50 IoCs

pid	Process
2592	svchost.exe
2592	svchost.exe
2592	svchost.exe
2592	svchost.exe
2128	NETSTAT.EXE
2128	NETSTAT.EXE
2128	NETSTAT.EXE
2128	NETSTAT.EXE
2128	NETSTAT.EXE
2128	NETSTAT.EXE
2128	NETSTAT.EXE
2128	NETSTAT.EXE
2128	NETSTAT.EXE
2128	NETSTAT.EXE
2128	NETSTAT.EXE
2128	NETSTAT.EXE
2128	NETSTAT.EXE
2128	NETSTAT.EXE
2128	NETSTAT.EXE
2128	NETSTAT.EXE
2128	NETSTAT.EXE
2128	NETSTAT.EXE
2128	NETSTAT.EXE
2128	NETSTAT.EXE
2128	NETSTAT.EXE
2128	NETSTAT.EXE
2128	NETSTAT.EXE
2128	NETSTAT.EXE
2128	NETSTAT.EXE
2128	NETSTAT.EXE
2128	NETSTAT.EXE
2128	NETSTAT.EXE
2128	NETSTAT.EXE
2128	NETSTAT.EXE
2128	NETSTAT.EXE
2128	NETSTAT.EXE
2128	NETSTAT.EXE
2128	NETSTAT.EXE
2128	NETSTAT.EXE
2128	NETSTAT.EXE
2128	NETSTAT.EXE
2128	NETSTAT.EXE
2128	NETSTAT.EXE
2128	NETSTAT.EXE
2128	NETSTAT.EXE
2128	NETSTAT.EXE
2128	NETSTAT.EXE
2128	NETSTAT.EXE
2128	NETSTAT.EXE
2128	NETSTAT.EXE

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
1416	eb4d78c2f2b63ac5364a8a86b93a0ef28c10d5c863b5bfc344e41cc29acd985eN.exe
2592	svchost.exe
2592	svchost.exe
2592	svchost.exe
2128	NETSTAT.EXE
2128	NETSTAT.EXE

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2592	svchost.exe
Token: SeDebugPrivilege	2128	NETSTAT.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1416	eb4d78c2f2b63ac5364a8a86b93a0ef28c10d5c863b5bfc344e41cc29acd985eN.exe
1416	eb4d78c2f2b63ac5364a8a86b93a0ef28c10d5c863b5bfc344e41cc29acd985eN.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1416	eb4d78c2f2b63ac5364a8a86b93a0ef28c10d5c863b5bfc344e41cc29acd985eN.exe
1416	eb4d78c2f2b63ac5364a8a86b93a0ef28c10d5c863b5bfc344e41cc29acd985eN.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1416 wrote to memory of 2592	1416	eb4d78c2f2b63ac5364a8a86b93a0ef28c10d5c863b5bfc344e41cc29acd985eN.exe	83
PID 1416 wrote to memory of 2592	1416	eb4d78c2f2b63ac5364a8a86b93a0ef28c10d5c863b5bfc344e41cc29acd985eN.exe	83
PID 1416 wrote to memory of 2592	1416	eb4d78c2f2b63ac5364a8a86b93a0ef28c10d5c863b5bfc344e41cc29acd985eN.exe	83
PID 1416 wrote to memory of 2592	1416	eb4d78c2f2b63ac5364a8a86b93a0ef28c10d5c863b5bfc344e41cc29acd985eN.exe	83
PID 3428 wrote to memory of 2128	3428	Explorer.EXE	84
PID 3428 wrote to memory of 2128	3428	Explorer.EXE	84
PID 3428 wrote to memory of 2128	3428	Explorer.EXE	84
PID 2128 wrote to memory of 4376	2128	NETSTAT.EXE	86
PID 2128 wrote to memory of 4376	2128	NETSTAT.EXE	86
PID 2128 wrote to memory of 4376	2128	NETSTAT.EXE	86

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3428
- C:\Users\Admin\AppData\Local\Temp\eb4d78c2f2b63ac5364a8a86b93a0ef28c10d5c863b5bfc344e41cc29acd985eN.exe
  "C:\Users\Admin\AppData\Local\Temp\eb4d78c2f2b63ac5364a8a86b93a0ef28c10d5c863b5bfc344e41cc29acd985eN.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:1416
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\eb4d78c2f2b63ac5364a8a86b93a0ef28c10d5c863b5bfc344e41cc29acd985eN.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2592
- C:\Windows\SysWOW64\NETSTAT.EXE
  "C:\Windows\SysWOW64\NETSTAT.EXE"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Gathers network information
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2128
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4376

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1416-6-0x0000000001740000-0x0000000001B40000-memory.dmp

Filesize
4.0MB

Download
memory/2128-13-0x0000000000D20000-0x0000000000D2B000-memory.dmp

Filesize
44KB

Download
memory/2128-15-0x0000000000800000-0x000000000082F000-memory.dmp

Filesize
188KB

Download
memory/2128-14-0x0000000000D20000-0x0000000000D2B000-memory.dmp

Filesize
44KB

Download
memory/2592-11-0x0000000001650000-0x0000000001665000-memory.dmp

Filesize
84KB

Download
memory/2592-10-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2592-8-0x0000000001200000-0x000000000154A000-memory.dmp

Filesize
3.3MB

Download
memory/2592-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3428-12-0x00000000085B0000-0x0000000008669000-memory.dmp

Filesize
740KB

Download
memory/3428-16-0x00000000085B0000-0x0000000008669000-memory.dmp

Filesize
740KB

Download
memory/3428-20-0x0000000008670000-0x0000000008795000-memory.dmp

Filesize
1.1MB

Download
memory/3428-21-0x0000000008670000-0x0000000008795000-memory.dmp

Filesize
1.1MB

Download
memory/3428-23-0x0000000008670000-0x0000000008795000-memory.dmp

Filesize
1.1MB

Download

Analysis

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