formbook | f637d170a539b7418c9da3506bc437edd21c854313fc7a2a4b03f675a63a4ae1

Analysis

max time kernel
148s
max time network
17s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
01-09-2024 00:40

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General

Target

teklif.exe
Size

378KB
MD5

9f5f0a9318f01aba5f2e413cf55f30ee
SHA1

2893ad78ba028cd19eec0634babf210e86b2b3c5
SHA256

3b098abf608b9def35a0cabf2e548dfe01d4f575f6406770be29a25439785978
SHA512

05695b9d5b70c758069d17386910b6c9a70a852557e7dc03f4827d923ef6680c81a24bad662e04cf3f3179d548fa4ed711355ce2b12f703b675da9f0fae58fc8
SSDEEP

6144:ryO/Zh4o9pb4K0gUjJfeanDlgy+3IvVfgupuW9hioiYnWcEzkIdUND1tUabGgxP0:rBZh4ebmjpegJ+CVfguPibk/Nxtnagx8

Score

10^/10

formbook rs26 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

rs26

Decoy

amazon-review.info

17kaihuiba.com

timeableholdings.com

techvestorsmultifamily.com

rokketsoftware.com

abbigliamentoagricolo.com

artjiayi.com

smooouse.com

lightcastwired.com

bravuad.com

mr133.com

clubfitdartmouth.com

masturbation-stories.net

yedekparcatreni.com

pureologyrising.com

goodsystem2updating.download

fn4pk8p0o5.com

climatechangersofny.com

shuangxian023.com

lxiuot.men

Signatures

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

Formbook payload 2 IoCs

rat

resource	yara_rule
behavioral1/memory/2592-16-0x0000000000400000-0x000000000042D000-memory.dmp	formbook
behavioral1/memory/2592-20-0x0000000000400000-0x000000000042D000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2300 set thread context of 2592	2300	teklif.exe	32
PID 2592 set thread context of 1388	2592	RegSvcs.exe	20
PID 2820 set thread context of 1388	2820	wscript.exe	20

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wscript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	teklif.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2924	schtasks.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
2300	teklif.exe
2300	teklif.exe
2300	teklif.exe
2300	teklif.exe
2300	teklif.exe
2592	RegSvcs.exe
2592	RegSvcs.exe
2820	wscript.exe
2820	wscript.exe
2820	wscript.exe
2820	wscript.exe
2820	wscript.exe
2820	wscript.exe
2820	wscript.exe
2820	wscript.exe
2820	wscript.exe
2820	wscript.exe
2820	wscript.exe
2820	wscript.exe
2820	wscript.exe
2820	wscript.exe
2820	wscript.exe
2820	wscript.exe
2820	wscript.exe
2820	wscript.exe
2820	wscript.exe
2820	wscript.exe
2820	wscript.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2592	RegSvcs.exe
2592	RegSvcs.exe
2592	RegSvcs.exe
2820	wscript.exe
2820	wscript.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2300	teklif.exe
Token: SeDebugPrivilege	2592	RegSvcs.exe
Token: SeDebugPrivilege	2820	wscript.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 2300 wrote to memory of 2924	2300	teklif.exe	29
PID 2300 wrote to memory of 2924	2300	teklif.exe	29
PID 2300 wrote to memory of 2924	2300	teklif.exe	29
PID 2300 wrote to memory of 2924	2300	teklif.exe	29
PID 2300 wrote to memory of 2844	2300	teklif.exe	31
PID 2300 wrote to memory of 2844	2300	teklif.exe	31
PID 2300 wrote to memory of 2844	2300	teklif.exe	31
PID 2300 wrote to memory of 2844	2300	teklif.exe	31
PID 2300 wrote to memory of 2844	2300	teklif.exe	31
PID 2300 wrote to memory of 2844	2300	teklif.exe	31
PID 2300 wrote to memory of 2844	2300	teklif.exe	31
PID 2300 wrote to memory of 2592	2300	teklif.exe	32
PID 2300 wrote to memory of 2592	2300	teklif.exe	32
PID 2300 wrote to memory of 2592	2300	teklif.exe	32
PID 2300 wrote to memory of 2592	2300	teklif.exe	32
PID 2300 wrote to memory of 2592	2300	teklif.exe	32
PID 2300 wrote to memory of 2592	2300	teklif.exe	32
PID 2300 wrote to memory of 2592	2300	teklif.exe	32
PID 2300 wrote to memory of 2592	2300	teklif.exe	32
PID 2300 wrote to memory of 2592	2300	teklif.exe	32
PID 2300 wrote to memory of 2592	2300	teklif.exe	32
PID 1388 wrote to memory of 2820	1388	Explorer.EXE	33
PID 1388 wrote to memory of 2820	1388	Explorer.EXE	33
PID 1388 wrote to memory of 2820	1388	Explorer.EXE	33
PID 1388 wrote to memory of 2820	1388	Explorer.EXE	33
PID 2820 wrote to memory of 2172	2820	wscript.exe	34
PID 2820 wrote to memory of 2172	2820	wscript.exe	34
PID 2820 wrote to memory of 2172	2820	wscript.exe	34
PID 2820 wrote to memory of 2172	2820	wscript.exe	34

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1388
- C:\Users\Admin\AppData\Local\Temp\teklif.exe
  "C:\Users\Admin\AppData\Local\Temp\teklif.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2300
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\hhdPPNCtb" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4CD9.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2924
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "{path}"
    3⤵
    PID:2844
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "{path}"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2592
- C:\Windows\SysWOW64\wscript.exe
  "C:\Windows\SysWOW64\wscript.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2820
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2172

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp4CD9.tmp

Filesize
1KB

MD5
7c2d41964d1bb851c60e214a6bba00b9

SHA1
86af4f7453c366c88669773d41620ea685ce888b

SHA256
82f4cb6a70153bf76a2a70a3aa9a6e04129ee782e8562858ed4bca7bd0e09cb3

SHA512
7bc7471a60b1cafd96139bdc65f737ed0579d186bf4e7322d296a07b5b09a450c1922cff13164adb73a030e23a75ebdae2575828563d855fca7820f2f366705b

Download Submit
memory/1388-22-0x00000000067A0000-0x00000000068C5000-memory.dmp

Filesize
1.1MB

Download
memory/1388-25-0x00000000067A0000-0x00000000068C5000-memory.dmp

Filesize
1.1MB

Download
memory/1388-26-0x0000000000010000-0x0000000000020000-memory.dmp

Filesize
64KB

Download
memory/2300-3-0x0000000000490000-0x000000000049A000-memory.dmp

Filesize
40KB

Download
memory/2300-5-0x0000000074320000-0x0000000074A0E000-memory.dmp

Filesize
6.9MB

Download
memory/2300-6-0x00000000020C0000-0x0000000002118000-memory.dmp

Filesize
352KB

Download
memory/2300-7-0x0000000001E50000-0x0000000001E82000-memory.dmp

Filesize
200KB

Download
memory/2300-4-0x000000007432E000-0x000000007432F000-memory.dmp

Filesize
4KB

Download
memory/2300-17-0x0000000074320000-0x0000000074A0E000-memory.dmp

Filesize
6.9MB

Download
memory/2300-0-0x000000007432E000-0x000000007432F000-memory.dmp

Filesize
4KB

Download
memory/2300-2-0x0000000074320000-0x0000000074A0E000-memory.dmp

Filesize
6.9MB

Download
memory/2300-1-0x0000000000060000-0x00000000000C4000-memory.dmp

Filesize
400KB

Download
memory/2592-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2592-18-0x0000000000930000-0x0000000000C33000-memory.dmp

Filesize
3.0MB

Download
memory/2592-21-0x0000000000160000-0x0000000000174000-memory.dmp

Filesize
80KB

Download
memory/2592-20-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/2592-11-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/2592-16-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/2592-12-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/2820-24-0x0000000000330000-0x0000000000356000-memory.dmp

Filesize
152KB

Download
memory/2820-23-0x0000000000330000-0x0000000000356000-memory.dmp

Filesize
152KB

Download