formbook | 1546e632cb3cd6abb0497a1e941d7c1afefd3d1bc7582b63f49d948241406b80

General

Target

1546e632cb3cd6abb0497a1e941d7c1afefd3d1bc7582b63f49d948241406b80.exe
Size

328KB
MD5

59ec68c614cbd08f061b98ee2f7558b6
SHA1

518e36c73b44331e89a74c651ddf64e9ad79ee10
SHA256

1546e632cb3cd6abb0497a1e941d7c1afefd3d1bc7582b63f49d948241406b80
SHA512

9e7efd81d2cd1ffcc35d76f33b24f96ebfe459f9768ff29fce9d56877471dff8ef1dfe469b3ff045eb913cebc30a8b44d0c3cbe1b46f6fc7e7eaa5c853eea99b
SSDEEP

6144:ptxBKhzEHZ6pqRMVr5PdD1IQnAPJrueL9KEzbIgsfd+O2hht9lKSYS:ptLKhIZ60+VrVR/UJrueL9PbcV8jt9lH

Score

10^/10

formbook 4u5a rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

4u5a

Decoy

Y9HWoINcPu0r7SSSKt4FCmk7

G/E64auYdhRQM4wZW2bcOaY=

bL57APty/StRpW49a+EdxA==

TppryJ0SoslHe8gJFVc=

HXxDShYIEcUJDahdv2nvl5Hlbp4=

EKaq5c6w0nV3WWlEqM4Www==

VM+YjE8XS1OLcH1roYF4zA==

OwK0wxmBGnq2Fg==

B1zy4bulyfY9tj9DK2eIkeYArpTt

Avj5JeA8m9girqfQ4+cZxA==

AOY4dmDFkCdX8HUJMw==

5cQUw3pPMYr07V8=

P7ZsN4/zt63AEw==

FYyVCOpB8Vl//kSkDLPo91Yy

jxwZTBp+5gcsccPxDF+K4bDG2Rpp0A==

iGx9AO58DRhZbXX9

prwVyLkAtlhSU6irmansg8wArpTt

uqa8ZPl+FFObOkdFNg==

tL4OhF22EDaEOkdFNg==

6exH76Z9o7eu/n86vgPE

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Loads dropped DLL 1 IoCs

Processes:

raserver.exe

pid process

1684 raserver.exe

pid	process
1684	raserver.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

1546e632cb3cd6abb0497a1e941d7c1afefd3d1bc7582b63f49d948241406b80.exeRegSvcs.exeraserver.exe

description	pid	process	target process
PID 1724 set thread context of 1228	1724	1546e632cb3cd6abb0497a1e941d7c1afefd3d1bc7582b63f49d948241406b80.exe	RegSvcs.exe
PID 1228 set thread context of 1284	1228	RegSvcs.exe	Explorer.EXE
PID 1228 set thread context of 1284	1228	RegSvcs.exe	Explorer.EXE
PID 1684 set thread context of 1284	1684	raserver.exe	Explorer.EXE

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

raserver.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-4063495947-34355257-727531523-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	raserver.exe

Suspicious behavior: EnumeratesProcesses 22 IoCs

Processes:

1546e632cb3cd6abb0497a1e941d7c1afefd3d1bc7582b63f49d948241406b80.exeRegSvcs.exeraserver.exe

pid	process
1724	1546e632cb3cd6abb0497a1e941d7c1afefd3d1bc7582b63f49d948241406b80.exe
1228	RegSvcs.exe
1228	RegSvcs.exe
1228	RegSvcs.exe
1228	RegSvcs.exe
1228	RegSvcs.exe
1684	raserver.exe
1684	raserver.exe
1684	raserver.exe
1684	raserver.exe
1684	raserver.exe
1684	raserver.exe
1684	raserver.exe
1684	raserver.exe
1684	raserver.exe
1684	raserver.exe
1684	raserver.exe
1684	raserver.exe
1684	raserver.exe
1684	raserver.exe
1684	raserver.exe
1684	raserver.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1284 Explorer.EXE
Suspicious behavior: MapViewOfSection 8 IoCs

Processes:

RegSvcs.exeraserver.exe

pid process

1228 RegSvcs.exe
1228 RegSvcs.exe
1228 RegSvcs.exe
1228 RegSvcs.exe
1684 raserver.exe
1684 raserver.exe
1684 raserver.exe
1684 raserver.exe

pid	process
1284	Explorer.EXE

pid	process
1228	RegSvcs.exe
1228	RegSvcs.exe
1228	RegSvcs.exe
1228	RegSvcs.exe
1684	raserver.exe
1684	raserver.exe
1684	raserver.exe
1684	raserver.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

1546e632cb3cd6abb0497a1e941d7c1afefd3d1bc7582b63f49d948241406b80.exeRegSvcs.exeraserver.exe

description	pid	process
Token: SeDebugPrivilege	1724	1546e632cb3cd6abb0497a1e941d7c1afefd3d1bc7582b63f49d948241406b80.exe
Token: SeDebugPrivilege	1228	RegSvcs.exe
Token: SeDebugPrivilege	1684	raserver.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1284 Explorer.EXE
1284 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1284 Explorer.EXE
1284 Explorer.EXE
Suspicious use of UnmapMainImage 1 IoCs

Processes:

Explorer.EXE

pid process

1284 Explorer.EXE

pid	process
1284	Explorer.EXE
1284	Explorer.EXE

pid	process
1284	Explorer.EXE
1284	Explorer.EXE

pid	process
1284	Explorer.EXE

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

1546e632cb3cd6abb0497a1e941d7c1afefd3d1bc7582b63f49d948241406b80.exeExplorer.EXEraserver.exe

description	pid	process	target process
PID 1724 wrote to memory of 1892	1724	1546e632cb3cd6abb0497a1e941d7c1afefd3d1bc7582b63f49d948241406b80.exe	RegSvcs.exe
PID 1724 wrote to memory of 1892	1724	1546e632cb3cd6abb0497a1e941d7c1afefd3d1bc7582b63f49d948241406b80.exe	RegSvcs.exe
PID 1724 wrote to memory of 1892	1724	1546e632cb3cd6abb0497a1e941d7c1afefd3d1bc7582b63f49d948241406b80.exe	RegSvcs.exe
PID 1724 wrote to memory of 1892	1724	1546e632cb3cd6abb0497a1e941d7c1afefd3d1bc7582b63f49d948241406b80.exe	RegSvcs.exe
PID 1724 wrote to memory of 1892	1724	1546e632cb3cd6abb0497a1e941d7c1afefd3d1bc7582b63f49d948241406b80.exe	RegSvcs.exe
PID 1724 wrote to memory of 1892	1724	1546e632cb3cd6abb0497a1e941d7c1afefd3d1bc7582b63f49d948241406b80.exe	RegSvcs.exe
PID 1724 wrote to memory of 1892	1724	1546e632cb3cd6abb0497a1e941d7c1afefd3d1bc7582b63f49d948241406b80.exe	RegSvcs.exe
PID 1724 wrote to memory of 1228	1724	1546e632cb3cd6abb0497a1e941d7c1afefd3d1bc7582b63f49d948241406b80.exe	RegSvcs.exe
PID 1724 wrote to memory of 1228	1724	1546e632cb3cd6abb0497a1e941d7c1afefd3d1bc7582b63f49d948241406b80.exe	RegSvcs.exe
PID 1724 wrote to memory of 1228	1724	1546e632cb3cd6abb0497a1e941d7c1afefd3d1bc7582b63f49d948241406b80.exe	RegSvcs.exe
PID 1724 wrote to memory of 1228	1724	1546e632cb3cd6abb0497a1e941d7c1afefd3d1bc7582b63f49d948241406b80.exe	RegSvcs.exe
PID 1724 wrote to memory of 1228	1724	1546e632cb3cd6abb0497a1e941d7c1afefd3d1bc7582b63f49d948241406b80.exe	RegSvcs.exe
PID 1724 wrote to memory of 1228	1724	1546e632cb3cd6abb0497a1e941d7c1afefd3d1bc7582b63f49d948241406b80.exe	RegSvcs.exe
PID 1724 wrote to memory of 1228	1724	1546e632cb3cd6abb0497a1e941d7c1afefd3d1bc7582b63f49d948241406b80.exe	RegSvcs.exe
PID 1724 wrote to memory of 1228	1724	1546e632cb3cd6abb0497a1e941d7c1afefd3d1bc7582b63f49d948241406b80.exe	RegSvcs.exe
PID 1724 wrote to memory of 1228	1724	1546e632cb3cd6abb0497a1e941d7c1afefd3d1bc7582b63f49d948241406b80.exe	RegSvcs.exe
PID 1724 wrote to memory of 1228	1724	1546e632cb3cd6abb0497a1e941d7c1afefd3d1bc7582b63f49d948241406b80.exe	RegSvcs.exe
PID 1284 wrote to memory of 1684	1284	Explorer.EXE	raserver.exe
PID 1284 wrote to memory of 1684	1284	Explorer.EXE	raserver.exe
PID 1284 wrote to memory of 1684	1284	Explorer.EXE	raserver.exe
PID 1284 wrote to memory of 1684	1284	Explorer.EXE	raserver.exe
PID 1684 wrote to memory of 1784	1684	raserver.exe	Firefox.exe
PID 1684 wrote to memory of 1784	1684	raserver.exe	Firefox.exe
PID 1684 wrote to memory of 1784	1684	raserver.exe	Firefox.exe
PID 1684 wrote to memory of 1784	1684	raserver.exe	Firefox.exe
PID 1684 wrote to memory of 1784	1684	raserver.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1284
- C:\Users\Admin\AppData\Local\Temp\1546e632cb3cd6abb0497a1e941d7c1afefd3d1bc7582b63f49d948241406b80.exe
  "C:\Users\Admin\AppData\Local\Temp\1546e632cb3cd6abb0497a1e941d7c1afefd3d1bc7582b63f49d948241406b80.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1724
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    PID:1892
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1228
- C:\Windows\SysWOW64\raserver.exe
  "C:\Windows\SysWOW64\raserver.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1684
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:1784

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\sqlite3.dll

Filesize
1.1MB

MD5
f55e5766477de5997da50f12c9c74c91

SHA1
4dc98900a887be95411f07b9e597c57bdc7dbab3

SHA256
90be88984ee60864256378c952d44b13d55ac032ab6a7b8c698885176bcece69

SHA512
983417a297e68b58fbd1c07fed7a1697d249110a2c10644b2dc96e3facedd3fbfbcac6a7809631ffd62894f02cadd4d3e62022b9e5e026e5bf434f1eb1878f05

Download Submit
memory/1228-61-0x00000000004012B0-mapping.dmp

Download
memory/1228-74-0x0000000000401000-0x000000000042E000-memory.dmp

Filesize
180KB

Download
memory/1228-58-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1228-57-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1228-60-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1228-70-0x0000000000140000-0x0000000000150000-memory.dmp

Filesize
64KB

Download
memory/1228-63-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1228-65-0x0000000000401000-0x000000000042E000-memory.dmp

Filesize
180KB

Download
memory/1228-64-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1228-66-0x0000000000A00000-0x0000000000D03000-memory.dmp

Filesize
3.0MB

Download
memory/1228-67-0x00000000000C0000-0x00000000000D0000-memory.dmp

Filesize
64KB

Download
memory/1228-73-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1284-71-0x0000000006CA0000-0x0000000006E36000-memory.dmp

Filesize
1.6MB

Download
memory/1284-80-0x0000000007310000-0x0000000007497000-memory.dmp

Filesize
1.5MB

Download
memory/1284-68-0x0000000006B70000-0x0000000006C92000-memory.dmp

Filesize
1.1MB

Download
memory/1284-83-0x0000000007310000-0x0000000007497000-memory.dmp

Filesize
1.5MB

Download
memory/1284-81-0x0000000006CA0000-0x0000000006E36000-memory.dmp

Filesize
1.6MB

Download
memory/1684-77-0x0000000000080000-0x00000000000AD000-memory.dmp

Filesize
180KB

Download
memory/1684-76-0x0000000000460000-0x000000000047C000-memory.dmp

Filesize
112KB

Download
memory/1684-78-0x00000000021B0000-0x00000000024B3000-memory.dmp

Filesize
3.0MB

Download
memory/1684-79-0x0000000000370000-0x00000000003FF000-memory.dmp

Filesize
572KB

Download
memory/1684-75-0x0000000074DC1000-0x0000000074DC3000-memory.dmp

Filesize
8KB

Download
memory/1684-82-0x0000000000080000-0x00000000000AD000-memory.dmp

Filesize
180KB

Download
memory/1684-72-0x0000000000000000-mapping.dmp

Download
memory/1724-54-0x00000000000D0000-0x000000000012A000-memory.dmp

Filesize
360KB

Download
memory/1724-56-0x0000000000250000-0x000000000026C000-memory.dmp

Filesize
112KB

Download
memory/1724-55-0x0000000000570000-0x00000000005B8000-memory.dmp

Filesize
288KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads