formbook | 1abe9c17071932ed40d00325752b433b244fd2410bb88d8fb2d194a2e5e3059e

General

Target

vz7lgfephbs.exe
Size

454KB
MD5

78556723d290bbbeb1ed8c761861f8f8
SHA1

8eaad367886c44e90962bc5c23ecdb16761031f1
SHA256

1abe9c17071932ed40d00325752b433b244fd2410bb88d8fb2d194a2e5e3059e
SHA512

0f17a1cc369ffc92b5a82e50e42edcc2a10736c838ae4cb12a9eeb46009ef7b744e7c92e52bb79a39506918df58545454fce734bbbeb676e48ddef27e4ed35c5
SSDEEP

12288:39vAtRe9JF3Z7uSU2mgLb67ioQwL3eHjJS:3it4h9bQi8L2jJ

Score

10^/10

formbook support discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

support

Decoy

acryingshame.info

aycicegiyapi.net

reserveyar.com

intiagri.com

brothersma.com

transparenzsiegel.net

waqa.ltd

montanafarmranches.com

victorysalesandmarketing.net

tintoy.net

checkfixtures.com

jdoeworld.com

acuvueonline.com

hhpphz.com

wszcjt.com

pettreats.pet

jbellamyhomes.com

ht61laju26h.biz

basilmoters.com

pollyannalabs.com

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral1/memory/1420-2-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/1420-6-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/1420-11-0x0000000000400000-0x000000000042E000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2100 set thread context of 1420	2100	vz7lgfephbs.exe	32
PID 1420 set thread context of 1200	1420	vz7lgfephbs.exe	21
PID 1420 set thread context of 1200	1420	vz7lgfephbs.exe	21

System Location Discovery: System Language Discovery 1 TTPs 1 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	vz7lgfephbs.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1420	vz7lgfephbs.exe
1420	vz7lgfephbs.exe
1420	vz7lgfephbs.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1200	Explorer.EXE

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
2100	vz7lgfephbs.exe
1420	vz7lgfephbs.exe
1420	vz7lgfephbs.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1420	vz7lgfephbs.exe
Token: SeShutdownPrivilege	1200	Explorer.EXE
Token: SeShutdownPrivilege	1200	Explorer.EXE

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2100 wrote to memory of 1420	2100	vz7lgfephbs.exe	32
PID 2100 wrote to memory of 1420	2100	vz7lgfephbs.exe	32
PID 2100 wrote to memory of 1420	2100	vz7lgfephbs.exe	32
PID 2100 wrote to memory of 1420	2100	vz7lgfephbs.exe	32
PID 2100 wrote to memory of 1420	2100	vz7lgfephbs.exe	32

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:1200
- C:\Users\Admin\AppData\Local\Temp\vz7lgfephbs.exe
  "C:\Users\Admin\AppData\Local\Temp\vz7lgfephbs.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2100
- - C:\Users\Admin\AppData\Local\Temp\vz7lgfephbs.exe
    "C:\Users\Admin\AppData\Local\Temp\vz7lgfephbs.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1420

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/1200-10-0x0000000003E00000-0x0000000004000000-memory.dmp

Filesize
2.0MB

Download
memory/1200-21-0x000007FEF6CC0000-0x000007FEF6E03000-memory.dmp

Filesize
1.3MB

Download
memory/1200-20-0x000007FEF6DD7000-0x000007FEF6DF5000-memory.dmp

Filesize
120KB

Download
memory/1200-19-0x000007FEF6CC0000-0x000007FEF6E03000-memory.dmp

Filesize
1.3MB

Download
memory/1200-18-0x000007FEF6DD7000-0x000007FEF6DF5000-memory.dmp

Filesize
120KB

Download
memory/1200-17-0x00000000066C0000-0x000000000686E000-memory.dmp

Filesize
1.7MB

Download
memory/1200-8-0x00000000051D0000-0x0000000005324000-memory.dmp

Filesize
1.3MB

Download
memory/1200-7-0x0000000003E00000-0x0000000004000000-memory.dmp

Filesize
2.0MB

Download
memory/1200-16-0x00000000051D0000-0x0000000005324000-memory.dmp

Filesize
1.3MB

Download
memory/1200-12-0x00000000066C0000-0x000000000686E000-memory.dmp

Filesize
1.7MB

Download
memory/1420-11-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1420-6-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1420-2-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2100-0-0x0000000000400000-0x0000000000C72000-memory.dmp

Filesize
8.4MB

Download
memory/2100-3-0x0000000000230000-0x0000000000244000-memory.dmp

Filesize
80KB

Download
memory/2100-4-0x0000000077BE0000-0x0000000077CB6000-memory.dmp

Filesize
856KB

Download
memory/2100-1-0x0000000000230000-0x0000000000244000-memory.dmp

Filesize
80KB

Download

Analysis

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