formbook | 18ac075f03eecd2591e09339d952b331804eebe240185dfd4601db744b081577

General

Target

1.exe
Size

743KB
MD5

23713e079ab57e334b8cb4116e7a1318
SHA1

7f1a8448ccc5ccf5e3758055f89ee156e1a17ff6
SHA256

c89757583d8df1ff56a4a8a4efa66666d02af3807b60cd058031afe1aebaeda8
SHA512

134aa0ab39d5f4241362753c9a414542673a66ccebea89910ce867574e5075c880052f89cc946e1d735e904eef2685c8598c4f39ec82a5c54c60a1e5a47e43b8
SSDEEP

12288:bxojH5jdL/KyCR7PqRo2YQLa3RFC7cvoLTKF99AQ056islwo8ZHo:+ljBKnRIIQOhKcCTKFPAQ05Dslwb5

Score

10^/10

formbook x0h discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

x0h

Decoy

kairos-go.com

news3091.photography

champlin.biz

callmekondoor.com

makrobet109.com

schoolwearworldwide.com

abelabramyan.com

szbtps.com

okanega-karireru.com

goldenwestflooring.com

hemptactics.com

fshsst-ar.com

securityupdates2.site

lhot.ltd

mgaklubspa.com

benefitsofcrossfit.com

stuff.blue

yingjia168.com

audio2mp3.com

live-outlook-login.com

Signatures

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

Formbook payload 2 IoCs

rat

resource	yara_rule
behavioral1/memory/1600-4-0x0000000000400000-0x000000000042D000-memory.dmp	formbook
behavioral1/memory/1600-7-0x0000000000400000-0x000000000042D000-memory.dmp	formbook

Deletes itself 1 IoCs

pid	Process
2564	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2532 set thread context of 1600	2532	1.exe	30
PID 1600 set thread context of 1192	1600	1.exe	21
PID 2528 set thread context of 1192	2528	ipconfig.exe	21

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	1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ipconfig.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
2528	ipconfig.exe

Suspicious behavior: EnumeratesProcesses 32 IoCs

pid	Process
2532	1.exe
1600	1.exe
1600	1.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2532	1.exe
1600	1.exe
1600	1.exe
1600	1.exe
2528	ipconfig.exe
2528	ipconfig.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1600	1.exe
Token: SeDebugPrivilege	2528	ipconfig.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2532 wrote to memory of 1600	2532	1.exe	30
PID 2532 wrote to memory of 1600	2532	1.exe	30
PID 2532 wrote to memory of 1600	2532	1.exe	30
PID 2532 wrote to memory of 1600	2532	1.exe	30
PID 1192 wrote to memory of 2528	1192	Explorer.EXE	31
PID 1192 wrote to memory of 2528	1192	Explorer.EXE	31
PID 1192 wrote to memory of 2528	1192	Explorer.EXE	31
PID 1192 wrote to memory of 2528	1192	Explorer.EXE	31
PID 2528 wrote to memory of 2564	2528	ipconfig.exe	32
PID 2528 wrote to memory of 2564	2528	ipconfig.exe	32
PID 2528 wrote to memory of 2564	2528	ipconfig.exe	32
PID 2528 wrote to memory of 2564	2528	ipconfig.exe	32

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1192
- C:\Users\Admin\AppData\Local\Temp\1.exe
  "C:\Users\Admin\AppData\Local\Temp\1.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2532
- - C:\Users\Admin\AppData\Local\Temp\1.exe
    "C:\Users\Admin\AppData\Local\Temp\1.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1600
- C:\Windows\SysWOW64\ipconfig.exe
  "C:\Windows\SysWOW64\ipconfig.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:2528
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\1.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2564

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/1192-8-0x0000000000010000-0x0000000000020000-memory.dmp

Filesize
64KB

Download
memory/1192-9-0x00000000052A0000-0x00000000053B9000-memory.dmp

Filesize
1.1MB

Download
memory/1192-14-0x00000000052A0000-0x00000000053B9000-memory.dmp

Filesize
1.1MB

Download
memory/1600-4-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1600-7-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/2528-12-0x00000000009D0000-0x00000000009DA000-memory.dmp

Filesize
40KB

Download
memory/2528-13-0x00000000009D0000-0x00000000009DA000-memory.dmp

Filesize
40KB

Download
memory/2532-0-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2532-2-0x0000000000510000-0x0000000000523000-memory.dmp

Filesize
76KB

Download
memory/2532-3-0x0000000000530000-0x0000000000531000-memory.dmp

Filesize
4KB

Download
memory/2532-5-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2532-1-0x0000000000510000-0x0000000000523000-memory.dmp

Filesize
76KB

Download

Analysis

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