formbook | 9148c87726f97b18e044b9059a608a3b809ae02a795d44c1609bff24232c45ac

General

Target

flWhrV1J6MAi1kS.exe
Size

345KB
MD5

61a281d6005afdcb7b9f25b16e71bff3
SHA1

a380e614531478c3adf122e78568308e8a46f5c5
SHA256

9148c87726f97b18e044b9059a608a3b809ae02a795d44c1609bff24232c45ac
SHA512

bc174c366bfefc2acabdaa9b7548a726db82ff408cc145d85d5d7b0400e129d6688aa07928e0dd0a0bdcb9e0598ce86f48c77f7fc2607bdbe440014463eb0f9f

Score

10^/10

formbook rat rezer0 spyware stealer trojan

Malware Config

Extracted

Family

formbook

C2

http://www.spatren.com/k0f/

Decoy

uao2o.info

hehe2.net

beautyqueenstores.com

chataan.com

brazzers-shop.biz

evolutionareligion.com

laysusannausboko.com

idewweddings.com

superwebox.com

moviesfan.net

deal-mix.com

infrarotgrilltest.info

corelesseposrolls.com

mpbrandl-finetrade-gamma.com

statement-log-in.info

romita4harrison.com

cpateamconsultant.com

gxdiaoyu.com

motocenterlaba.com

mlrs1314.com

Signatures

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

Formbook Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1464-5-0x0000000000400000-0x000000000042D000-memory.dmp	formbook
behavioral1/memory/1464-6-0x000000000041E320-mapping.dmp	formbook
behavioral1/memory/1148-7-0x0000000000000000-mapping.dmp	formbook

rezer0 1 IoCs

Detects ReZer0, a packer with multiple versions used in various campaigns.

rezer0

Processes:

resource	yara_rule
behavioral1/memory/1128-4-0x0000000000C60000-0x0000000000C94000-memory.dmp	rezer0

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1788 cmd.exe

pid	process
1788	cmd.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

flWhrV1J6MAi1kS.exeflWhrV1J6MAi1kS.exewscript.exe

description	pid	process	target process
PID 1128 set thread context of 1464	1128	flWhrV1J6MAi1kS.exe	flWhrV1J6MAi1kS.exe
PID 1464 set thread context of 1356	1464	flWhrV1J6MAi1kS.exe	Explorer.EXE
PID 1464 set thread context of 1356	1464	flWhrV1J6MAi1kS.exe	Explorer.EXE
PID 1148 set thread context of 1356	1148	wscript.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 23 IoCs

Processes:

flWhrV1J6MAi1kS.exewscript.exe

pid	process
1464	flWhrV1J6MAi1kS.exe
1464	flWhrV1J6MAi1kS.exe
1464	flWhrV1J6MAi1kS.exe
1148	wscript.exe
1148	wscript.exe
1148	wscript.exe
1148	wscript.exe
1148	wscript.exe
1148	wscript.exe
1148	wscript.exe
1148	wscript.exe
1148	wscript.exe
1148	wscript.exe
1148	wscript.exe
1148	wscript.exe
1148	wscript.exe
1148	wscript.exe
1148	wscript.exe
1148	wscript.exe
1148	wscript.exe
1148	wscript.exe
1148	wscript.exe
1148	wscript.exe

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

flWhrV1J6MAi1kS.exewscript.exe

pid process

1464 flWhrV1J6MAi1kS.exe
1464 flWhrV1J6MAi1kS.exe
1464 flWhrV1J6MAi1kS.exe
1464 flWhrV1J6MAi1kS.exe
1148 wscript.exe
1148 wscript.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

flWhrV1J6MAi1kS.exewscript.exe

description pid process

Token: SeDebugPrivilege 1464 flWhrV1J6MAi1kS.exe
Token: SeDebugPrivilege 1148 wscript.exe
Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

Explorer.EXE

pid process

1356 Explorer.EXE
1356 Explorer.EXE
1356 Explorer.EXE
1356 Explorer.EXE
Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1356 Explorer.EXE
1356 Explorer.EXE
1356 Explorer.EXE
1356 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1464	flWhrV1J6MAi1kS.exe
Token: SeDebugPrivilege	1148	wscript.exe

pid	process
1356	Explorer.EXE
1356	Explorer.EXE
1356	Explorer.EXE
1356	Explorer.EXE

pid	process
1356	Explorer.EXE
1356	Explorer.EXE
1356	Explorer.EXE
1356	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

flWhrV1J6MAi1kS.exeExplorer.EXEwscript.exe

description	pid	process	target process
PID 1128 wrote to memory of 1464	1128	flWhrV1J6MAi1kS.exe	flWhrV1J6MAi1kS.exe
PID 1128 wrote to memory of 1464	1128	flWhrV1J6MAi1kS.exe	flWhrV1J6MAi1kS.exe
PID 1128 wrote to memory of 1464	1128	flWhrV1J6MAi1kS.exe	flWhrV1J6MAi1kS.exe
PID 1128 wrote to memory of 1464	1128	flWhrV1J6MAi1kS.exe	flWhrV1J6MAi1kS.exe
PID 1128 wrote to memory of 1464	1128	flWhrV1J6MAi1kS.exe	flWhrV1J6MAi1kS.exe
PID 1128 wrote to memory of 1464	1128	flWhrV1J6MAi1kS.exe	flWhrV1J6MAi1kS.exe
PID 1128 wrote to memory of 1464	1128	flWhrV1J6MAi1kS.exe	flWhrV1J6MAi1kS.exe
PID 1356 wrote to memory of 1148	1356	Explorer.EXE	wscript.exe
PID 1356 wrote to memory of 1148	1356	Explorer.EXE	wscript.exe
PID 1356 wrote to memory of 1148	1356	Explorer.EXE	wscript.exe
PID 1356 wrote to memory of 1148	1356	Explorer.EXE	wscript.exe
PID 1148 wrote to memory of 1788	1148	wscript.exe	cmd.exe
PID 1148 wrote to memory of 1788	1148	wscript.exe	cmd.exe
PID 1148 wrote to memory of 1788	1148	wscript.exe	cmd.exe
PID 1148 wrote to memory of 1788	1148	wscript.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1356

C:\Users\Admin\AppData\Local\Temp\flWhrV1J6MAi1kS.exe
"C:\Users\Admin\AppData\Local\Temp\flWhrV1J6MAi1kS.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1128

C:\Users\Admin\AppData\Local\Temp\flWhrV1J6MAi1kS.exe
"{path}"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1464

C:\Windows\SysWOW64\wscript.exe
"C:\Windows\SysWOW64\wscript.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1148

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\flWhrV1J6MAi1kS.exe"
3⤵
- Deletes itself
PID:1788

MITRE ATT&CK Matrix

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Downloads

memory/1128-0-0x0000000074B10000-0x00000000751FE000-memory.dmp

Filesize
6.9MB

Download
memory/1128-1-0x0000000001070000-0x0000000001071000-memory.dmp

Filesize
4KB

Download
memory/1128-3-0x0000000000520000-0x000000000052F000-memory.dmp

Filesize
60KB

Download
memory/1128-4-0x0000000000C60000-0x0000000000C94000-memory.dmp

Filesize
208KB

Download
memory/1148-7-0x0000000000000000-mapping.dmp

Download
memory/1148-8-0x00000000009C0000-0x00000000009E6000-memory.dmp

Filesize
152KB

Download
memory/1148-10-0x00000000032C0000-0x0000000003426000-memory.dmp

Filesize
1.4MB

Download
memory/1464-5-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1464-6-0x000000000041E320-mapping.dmp

Download
memory/1788-9-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads