formbook | 69c4f08c64ca2809ab57dfb43008d4e197bda7ce1a3613402563660afd6e6226

General

Target

reLwOrDA6szTYzt.exe
Size

940KB
MD5

ad4afa925700586e0138bda59adaddb7
SHA1

8309a84b841861ccac278fc03a5e213bd6628126
SHA256

69c4f08c64ca2809ab57dfb43008d4e197bda7ce1a3613402563660afd6e6226
SHA512

48ccbd2a3297246499a252f9a3028f6400ca5199a0158f893ab62a347fc887269d338ef761e8daabe723c24bbb985b242b9091ac054fe541181598b33d5bd5e0
SSDEEP

24576:vzq75DWfksa2TEiYxBayY7CdTiwAAgEEY4:8Wfe2Q9xBxDTQp

Score

10^/10

formbook fqwu rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

fqwu

Decoy

N6XHavFRXQTRmNUkF9dn

EoaWTgFMmLFmUJ7CJNkTiGoj5A==

Dm+WNJDwSQa5cML3Q7EBiGoj5A==

nixR8ZCkOWjqrASBuic=

yvWQNApkdf4QYIih4+xUDY0=

RtmBQtDYDb50g8btXA==

8SU541y9Ec12NYK8PSOfA8OPpaphimY=

/yEvxvlAkquuY3W1QQ==

AlHZgYW4BiI9V+M=

YsHIUsAOO15j+9TnWA==

JJu1S7QIIMij0xUqlUtv

CmWBLrD98YnyUCCFvy0=

uPwhAVEvtu1rTuY=

PI6bR88GVGXmRlpxpKjtBpo=

GnL7qs9HVQAiF6ckF9dn

2zVeBFKZgO1rTuY=

2VI1VpOg7boCAFxvrWN3ys9rovE=

L1lO62zA2o1QEEZRQtgh7g==

brhF5dY1e3zmSyCFvy0=

U6m2TsEidTTdsA5kX8wh7g==

Signatures

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

reLwOrDA6szTYzt.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	reLwOrDA6szTYzt.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

reLwOrDA6szTYzt.exereLwOrDA6szTYzt.exechkdsk.exe

description	pid	process	target process
PID 3548 set thread context of 3948	3548	reLwOrDA6szTYzt.exe	reLwOrDA6szTYzt.exe
PID 3948 set thread context of 2056	3948	reLwOrDA6szTYzt.exe	Explorer.EXE
PID 3816 set thread context of 2056	3816	chkdsk.exe	Explorer.EXE

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

chkdsk.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier chkdsk.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

chkdsk.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 48 IoCs

Processes:

reLwOrDA6szTYzt.exereLwOrDA6szTYzt.exechkdsk.exe

pid	process
3548	reLwOrDA6szTYzt.exe
3548	reLwOrDA6szTYzt.exe
3948	reLwOrDA6szTYzt.exe
3948	reLwOrDA6szTYzt.exe
3948	reLwOrDA6szTYzt.exe
3948	reLwOrDA6szTYzt.exe
3948	reLwOrDA6szTYzt.exe
3948	reLwOrDA6szTYzt.exe
3948	reLwOrDA6szTYzt.exe
3948	reLwOrDA6szTYzt.exe
3816	chkdsk.exe
3816	chkdsk.exe
3816	chkdsk.exe
3816	chkdsk.exe
3816	chkdsk.exe
3816	chkdsk.exe
3816	chkdsk.exe
3816	chkdsk.exe
3816	chkdsk.exe
3816	chkdsk.exe
3816	chkdsk.exe
3816	chkdsk.exe
3816	chkdsk.exe
3816	chkdsk.exe
3816	chkdsk.exe
3816	chkdsk.exe
3816	chkdsk.exe
3816	chkdsk.exe
3816	chkdsk.exe
3816	chkdsk.exe
3816	chkdsk.exe
3816	chkdsk.exe
3816	chkdsk.exe
3816	chkdsk.exe
3816	chkdsk.exe
3816	chkdsk.exe
3816	chkdsk.exe
3816	chkdsk.exe
3816	chkdsk.exe
3816	chkdsk.exe
3816	chkdsk.exe
3816	chkdsk.exe
3816	chkdsk.exe
3816	chkdsk.exe
3816	chkdsk.exe
3816	chkdsk.exe
3816	chkdsk.exe
3816	chkdsk.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2056 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

reLwOrDA6szTYzt.exechkdsk.exe

pid process

3948 reLwOrDA6szTYzt.exe
3948 reLwOrDA6szTYzt.exe
3948 reLwOrDA6szTYzt.exe
3816 chkdsk.exe
3816 chkdsk.exe
3816 chkdsk.exe
3816 chkdsk.exe

pid	process
2056	Explorer.EXE

pid	process
3948	reLwOrDA6szTYzt.exe
3948	reLwOrDA6szTYzt.exe
3948	reLwOrDA6szTYzt.exe
3816	chkdsk.exe
3816	chkdsk.exe
3816	chkdsk.exe
3816	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 11 IoCs

Processes:

reLwOrDA6szTYzt.exereLwOrDA6szTYzt.exechkdsk.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	3548	reLwOrDA6szTYzt.exe
Token: SeDebugPrivilege	3948	reLwOrDA6szTYzt.exe
Token: SeDebugPrivilege	3816	chkdsk.exe
Token: SeShutdownPrivilege	2056	Explorer.EXE
Token: SeCreatePagefilePrivilege	2056	Explorer.EXE
Token: SeShutdownPrivilege	2056	Explorer.EXE
Token: SeCreatePagefilePrivilege	2056	Explorer.EXE
Token: SeShutdownPrivilege	2056	Explorer.EXE
Token: SeCreatePagefilePrivilege	2056	Explorer.EXE
Token: SeShutdownPrivilege	2056	Explorer.EXE
Token: SeCreatePagefilePrivilege	2056	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

reLwOrDA6szTYzt.exeExplorer.EXEchkdsk.exe

description	pid	process	target process
PID 3548 wrote to memory of 4020	3548	reLwOrDA6szTYzt.exe	reLwOrDA6szTYzt.exe
PID 3548 wrote to memory of 4020	3548	reLwOrDA6szTYzt.exe	reLwOrDA6szTYzt.exe
PID 3548 wrote to memory of 4020	3548	reLwOrDA6szTYzt.exe	reLwOrDA6szTYzt.exe
PID 3548 wrote to memory of 3948	3548	reLwOrDA6szTYzt.exe	reLwOrDA6szTYzt.exe
PID 3548 wrote to memory of 3948	3548	reLwOrDA6szTYzt.exe	reLwOrDA6szTYzt.exe
PID 3548 wrote to memory of 3948	3548	reLwOrDA6szTYzt.exe	reLwOrDA6szTYzt.exe
PID 3548 wrote to memory of 3948	3548	reLwOrDA6szTYzt.exe	reLwOrDA6szTYzt.exe
PID 3548 wrote to memory of 3948	3548	reLwOrDA6szTYzt.exe	reLwOrDA6szTYzt.exe
PID 3548 wrote to memory of 3948	3548	reLwOrDA6szTYzt.exe	reLwOrDA6szTYzt.exe
PID 2056 wrote to memory of 3816	2056	Explorer.EXE	chkdsk.exe
PID 2056 wrote to memory of 3816	2056	Explorer.EXE	chkdsk.exe
PID 2056 wrote to memory of 3816	2056	Explorer.EXE	chkdsk.exe
PID 3816 wrote to memory of 3508	3816	chkdsk.exe	Firefox.exe
PID 3816 wrote to memory of 3508	3816	chkdsk.exe	Firefox.exe
PID 3816 wrote to memory of 3508	3816	chkdsk.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2056

C:\Users\Admin\AppData\Local\Temp\reLwOrDA6szTYzt.exe
"C:\Users\Admin\AppData\Local\Temp\reLwOrDA6szTYzt.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3548

C:\Users\Admin\AppData\Local\Temp\reLwOrDA6szTYzt.exe
"C:\Users\Admin\AppData\Local\Temp\reLwOrDA6szTYzt.exe"
3⤵
PID:4020

C:\Users\Admin\AppData\Local\Temp\reLwOrDA6szTYzt.exe
"C:\Users\Admin\AppData\Local\Temp\reLwOrDA6szTYzt.exe"
3⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:3948

C:\Windows\SysWOW64\chkdsk.exe
"C:\Windows\SysWOW64\chkdsk.exe"
2⤵
- Suspicious use of SetThreadContext
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3816

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:3508

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/2056-146-0x0000000008130000-0x0000000008260000-memory.dmp

Filesize
1.2MB

Download
memory/2056-159-0x00000000023A0000-0x00000000023B0000-memory.dmp

Filesize
64KB

Download
memory/2056-162-0x0000000002470000-0x0000000002480000-memory.dmp

Filesize
64KB

Download
memory/2056-161-0x00000000023A0000-0x00000000023B0000-memory.dmp

Filesize
64KB

Download
memory/2056-163-0x0000000000A90000-0x0000000000AA0000-memory.dmp

Filesize
64KB

Download
memory/2056-166-0x00000000028E0000-0x00000000028F0000-memory.dmp

Filesize
64KB

Download
memory/2056-165-0x00000000028E0000-0x00000000028F0000-memory.dmp

Filesize
64KB

Download
memory/2056-164-0x00000000028E0000-0x00000000028F0000-memory.dmp

Filesize
64KB

Download
memory/2056-156-0x0000000008260000-0x00000000083BA000-memory.dmp

Filesize
1.4MB

Download
memory/2056-157-0x0000000002470000-0x0000000002480000-memory.dmp

Filesize
64KB

Download
memory/2056-158-0x00000000023A0000-0x00000000023B0000-memory.dmp

Filesize
64KB

Download
memory/2056-160-0x00000000023A0000-0x00000000023B0000-memory.dmp

Filesize
64KB

Download
memory/2056-154-0x0000000008260000-0x00000000083BA000-memory.dmp

Filesize
1.4MB

Download
memory/3548-133-0x0000000005CC0000-0x0000000006264000-memory.dmp

Filesize
5.6MB

Download
memory/3548-135-0x00000000055F0000-0x00000000055FA000-memory.dmp

Filesize
40KB

Download
memory/3548-134-0x0000000005630000-0x00000000056C2000-memory.dmp

Filesize
584KB

Download
memory/3548-132-0x0000000000B50000-0x0000000000C42000-memory.dmp

Filesize
968KB

Download
memory/3548-136-0x0000000009080000-0x000000000911C000-memory.dmp

Filesize
624KB

Download
memory/3816-150-0x0000000000EF0000-0x0000000000EFA000-memory.dmp

Filesize
40KB

Download
memory/3816-147-0x0000000000000000-mapping.dmp

Download
memory/3816-152-0x0000000001480000-0x00000000017CA000-memory.dmp

Filesize
3.3MB

Download
memory/3816-155-0x0000000000CC0000-0x0000000000CED000-memory.dmp

Filesize
180KB

Download
memory/3816-151-0x0000000000CC0000-0x0000000000CED000-memory.dmp

Filesize
180KB

Download
memory/3816-153-0x00000000013A0000-0x000000000142F000-memory.dmp

Filesize
572KB

Download
memory/3948-148-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3948-149-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/3948-144-0x00000000011D0000-0x000000000151A000-memory.dmp

Filesize
3.3MB

Download
memory/3948-145-0x0000000000D60000-0x0000000000D70000-memory.dmp

Filesize
64KB

Download
memory/3948-141-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3948-142-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/3948-138-0x0000000000000000-mapping.dmp

Download
memory/3948-139-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4020-137-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads