formbook | f100b637fa8bc6f97f3bac5fe25cf5539a93c83795f0dfe22c8136282dd866a2

General

Target

9266ece6d7847e789355c680f49e4eb1fed2417e88b9fbd780e76e5f3ffcab33.exe
Size

519KB
MD5

f55f34179b9927413e1b8e03428219b5
SHA1

6794de0e21b2dcf6844e6c27d7391105ee9bf1ef
SHA256

9266ece6d7847e789355c680f49e4eb1fed2417e88b9fbd780e76e5f3ffcab33
SHA512

079e23fd13c75923c1510b35b8c8559d774982a5ce991483bcb6d2e0a8f6b0870bd5eca57926acedbdfccd71249148f26e76b7fb353673c2076678f60a20570f
SSDEEP

6144:2i5IN9bX6qUhFFGzaX/yuWUJeLC5MiTMXp6LNXlTEGtxhezzK3iU8dEHK:2i5ID6qUbFhyAXocLNNVtuXEHK

Score

10^/10

formbook s6tn discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

s6tn

Decoy

ya-volna.com

nakimura.online

buildtheyamato.com

carecard.xyz

orthozayn.com

sitd.xyz

garu.club

alfainfocom.com

floridalacrossecamps.com

banytus.xyz

dogodipiskot.quest

ljlsaf.com

shaheenricemills.com

cuevieujni.info

chrisandkcollection.com

sunadokei.website

hoidotsbirky.quest

creditassociatesllc.com

amazonhrjobs.com

the-luggage-dropp-off.com

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/2108-43-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2108-45-0x0000000000B50000-0x0000000000E53000-memory.dmp	formbook

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Newapp.exe	PowerShell.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Newapp.exe	PowerShell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2892 set thread context of 2108	2892	9266ece6d7847e789355c680f49e4eb1fed2417e88b9fbd780e76e5f3ffcab33.exe	33

System Location Discovery: System Language Discovery 1 TTPs 2 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	9266ece6d7847e789355c680f49e4eb1fed2417e88b9fbd780e76e5f3ffcab33.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PowerShell.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2300	PowerShell.exe
2108	9266ece6d7847e789355c680f49e4eb1fed2417e88b9fbd780e76e5f3ffcab33.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2300	PowerShell.exe
Token: SeDebugPrivilege	2892	9266ece6d7847e789355c680f49e4eb1fed2417e88b9fbd780e76e5f3ffcab33.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2892 wrote to memory of 2300	2892	9266ece6d7847e789355c680f49e4eb1fed2417e88b9fbd780e76e5f3ffcab33.exe	30
PID 2892 wrote to memory of 2300	2892	9266ece6d7847e789355c680f49e4eb1fed2417e88b9fbd780e76e5f3ffcab33.exe	30
PID 2892 wrote to memory of 2300	2892	9266ece6d7847e789355c680f49e4eb1fed2417e88b9fbd780e76e5f3ffcab33.exe	30
PID 2892 wrote to memory of 2300	2892	9266ece6d7847e789355c680f49e4eb1fed2417e88b9fbd780e76e5f3ffcab33.exe	30
PID 2892 wrote to memory of 2108	2892	9266ece6d7847e789355c680f49e4eb1fed2417e88b9fbd780e76e5f3ffcab33.exe	33
PID 2892 wrote to memory of 2108	2892	9266ece6d7847e789355c680f49e4eb1fed2417e88b9fbd780e76e5f3ffcab33.exe	33
PID 2892 wrote to memory of 2108	2892	9266ece6d7847e789355c680f49e4eb1fed2417e88b9fbd780e76e5f3ffcab33.exe	33
PID 2892 wrote to memory of 2108	2892	9266ece6d7847e789355c680f49e4eb1fed2417e88b9fbd780e76e5f3ffcab33.exe	33
PID 2892 wrote to memory of 2108	2892	9266ece6d7847e789355c680f49e4eb1fed2417e88b9fbd780e76e5f3ffcab33.exe	33
PID 2892 wrote to memory of 2108	2892	9266ece6d7847e789355c680f49e4eb1fed2417e88b9fbd780e76e5f3ffcab33.exe	33
PID 2892 wrote to memory of 2108	2892	9266ece6d7847e789355c680f49e4eb1fed2417e88b9fbd780e76e5f3ffcab33.exe	33

C:\Users\Admin\AppData\Local\Temp\9266ece6d7847e789355c680f49e4eb1fed2417e88b9fbd780e76e5f3ffcab33.exe
"C:\Users\Admin\AppData\Local\Temp\9266ece6d7847e789355c680f49e4eb1fed2417e88b9fbd780e76e5f3ffcab33.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2892
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\PowerShell.exe
  "PowerShell" copy-item 'C:\Users\Admin\AppData\Local\Temp\9266ece6d7847e789355c680f49e4eb1fed2417e88b9fbd780e76e5f3ffcab33.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Newapp.exe'
  2⤵
  - Drops startup file
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2300
- C:\Users\Admin\AppData\Local\Temp\9266ece6d7847e789355c680f49e4eb1fed2417e88b9fbd780e76e5f3ffcab33.exe
  "C:\Users\Admin\AppData\Local\Temp\9266ece6d7847e789355c680f49e4eb1fed2417e88b9fbd780e76e5f3ffcab33.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2108

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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/2108-40-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2108-45-0x0000000000B50000-0x0000000000E53000-memory.dmp

Filesize
3.0MB

Download
memory/2108-44-0x0000000000B50000-0x0000000000E53000-memory.dmp

Filesize
3.0MB

Download
memory/2108-41-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2108-43-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2108-39-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2300-4-0x000000006F991000-0x000000006F992000-memory.dmp

Filesize
4KB

Download
memory/2300-5-0x000000006F990000-0x000000006FF3B000-memory.dmp

Filesize
5.7MB

Download
memory/2300-6-0x000000006F990000-0x000000006FF3B000-memory.dmp

Filesize
5.7MB

Download
memory/2300-8-0x000000006F990000-0x000000006FF3B000-memory.dmp

Filesize
5.7MB

Download
memory/2300-7-0x000000006F990000-0x000000006FF3B000-memory.dmp

Filesize
5.7MB

Download
memory/2300-10-0x000000006F990000-0x000000006FF3B000-memory.dmp

Filesize
5.7MB

Download
memory/2892-30-0x00000000001D0000-0x00000000001E5000-memory.dmp

Filesize
84KB

Download
memory/2892-16-0x00000000001D0000-0x00000000001E5000-memory.dmp

Filesize
84KB

Download
memory/2892-0-0x0000000073FFE000-0x0000000073FFF000-memory.dmp

Filesize
4KB

Download
memory/2892-28-0x00000000001D0000-0x00000000001E5000-memory.dmp

Filesize
84KB

Download
memory/2892-26-0x00000000001D0000-0x00000000001E5000-memory.dmp

Filesize
84KB

Download
memory/2892-38-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2892-24-0x00000000001D0000-0x00000000001E5000-memory.dmp

Filesize
84KB

Download
memory/2892-20-0x00000000001D0000-0x00000000001E5000-memory.dmp

Filesize
84KB

Download
memory/2892-18-0x00000000001D0000-0x00000000001E5000-memory.dmp

Filesize
84KB

Download
memory/2892-37-0x0000000005120000-0x0000000005160000-memory.dmp

Filesize
256KB

Download
memory/2892-14-0x00000000001D0000-0x00000000001E5000-memory.dmp

Filesize
84KB

Download
memory/2892-13-0x00000000001D0000-0x00000000001E5000-memory.dmp

Filesize
84KB

Download
memory/2892-22-0x00000000001D0000-0x00000000001E5000-memory.dmp

Filesize
84KB

Download
memory/2892-32-0x00000000001D0000-0x00000000001E5000-memory.dmp

Filesize
84KB

Download
memory/2892-36-0x00000000001D0000-0x00000000001E5000-memory.dmp

Filesize
84KB

Download
memory/2892-34-0x00000000001D0000-0x00000000001E5000-memory.dmp

Filesize
84KB

Download
memory/2892-12-0x00000000001D0000-0x00000000001EC000-memory.dmp

Filesize
112KB

Download
memory/2892-11-0x0000000073FFE000-0x0000000073FFF000-memory.dmp

Filesize
4KB

Download
memory/2892-1-0x0000000000930000-0x00000000009B8000-memory.dmp

Filesize
544KB

Download

Analysis

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