formbook | 98a4d518bdfffcac61e710765afc3176042ddc22d345b2bb4fac48cc2056bcaa

General

Target

d87e27c8f998eea52032064b0b923a08.exe
Size

689KB
MD5

d87e27c8f998eea52032064b0b923a08
SHA1

5b1293c1ed7705131b395a961a626c2010db6f5e
SHA256

98a4d518bdfffcac61e710765afc3176042ddc22d345b2bb4fac48cc2056bcaa
SHA512

38751d28fef3071bad8d98ba05b87b6c94d89f47b33ee5e4b13f0856d238f42326e46cd9d2f193f766f63f2c4ce2ace5385c2c30a415c728c2424b6b27a52347
SSDEEP

12288:iUfFcRHdTiaOKHKfpiBz8WbYxualKVumB8f4C7smwAki9wCzJJ8by:DfFcRHd8KqfpiBAWMxuaU18hSi9Eb

Score

10^/10

formbook btrd discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

btrd

Decoy

everslane.com

prairieviewelectric.online

dszvhgd.com

papamuch.com

8129k.vip

jeffreestar.gold

bestguestrentals.com

nvzhuang1.net

anangtoto.com

yxfgor.top

practicalpoppers.com

thebestanglephotography.online

koormm.top

criika.net

audioflow.online

380747.net

jiuguanwang.net

bloxequities.com

v321c.com

sugar.monster

Signatures

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

Formbook payload 1 IoCs

rat

resource	yara_rule
behavioral1/memory/2468-13-0x0000000000400000-0x000000000042F000-memory.dmp	formbook

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
1684	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2388 set thread context of 2468	2388	d87e27c8f998eea52032064b0b923a08.exe	32

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 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	d87e27c8f998eea52032064b0b923a08.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2468	d87e27c8f998eea52032064b0b923a08.exe
1684	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1684	powershell.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2388 wrote to memory of 1684	2388	d87e27c8f998eea52032064b0b923a08.exe	31
PID 2388 wrote to memory of 1684	2388	d87e27c8f998eea52032064b0b923a08.exe	31
PID 2388 wrote to memory of 1684	2388	d87e27c8f998eea52032064b0b923a08.exe	31
PID 2388 wrote to memory of 1684	2388	d87e27c8f998eea52032064b0b923a08.exe	31
PID 2388 wrote to memory of 2468	2388	d87e27c8f998eea52032064b0b923a08.exe	32
PID 2388 wrote to memory of 2468	2388	d87e27c8f998eea52032064b0b923a08.exe	32
PID 2388 wrote to memory of 2468	2388	d87e27c8f998eea52032064b0b923a08.exe	32
PID 2388 wrote to memory of 2468	2388	d87e27c8f998eea52032064b0b923a08.exe	32
PID 2388 wrote to memory of 2468	2388	d87e27c8f998eea52032064b0b923a08.exe	32
PID 2388 wrote to memory of 2468	2388	d87e27c8f998eea52032064b0b923a08.exe	32
PID 2388 wrote to memory of 2468	2388	d87e27c8f998eea52032064b0b923a08.exe	32

C:\Users\Admin\AppData\Local\Temp\d87e27c8f998eea52032064b0b923a08.exe
"C:\Users\Admin\AppData\Local\Temp\d87e27c8f998eea52032064b0b923a08.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2388
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\d87e27c8f998eea52032064b0b923a08.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1684
- C:\Users\Admin\AppData\Local\Temp\d87e27c8f998eea52032064b0b923a08.exe
  "C:\Users\Admin\AppData\Local\Temp\d87e27c8f998eea52032064b0b923a08.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2468

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

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/2388-6-0x0000000004E90000-0x0000000004F08000-memory.dmp

Filesize
480KB

Download
memory/2388-1-0x0000000000840000-0x00000000008F2000-memory.dmp

Filesize
712KB

Download
memory/2388-2-0x00000000743B0000-0x0000000074A9E000-memory.dmp

Filesize
6.9MB

Download
memory/2388-3-0x0000000000380000-0x0000000000392000-memory.dmp

Filesize
72KB

Download
memory/2388-4-0x00000000743BE000-0x00000000743BF000-memory.dmp

Filesize
4KB

Download
memory/2388-5-0x00000000743B0000-0x0000000074A9E000-memory.dmp

Filesize
6.9MB

Download
memory/2388-0-0x00000000743BE000-0x00000000743BF000-memory.dmp

Filesize
4KB

Download
memory/2388-14-0x00000000743B0000-0x0000000074A9E000-memory.dmp

Filesize
6.9MB

Download
memory/2468-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2468-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2468-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2468-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2468-15-0x0000000000900000-0x0000000000C03000-memory.dmp

Filesize
3.0MB

Download

Analysis

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