formbook | 31fcc1a7c79fa0e760d81e479154824551be394658821275380c9fc45343ae22

Analysis

max time kernel
44s
max time network
19s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
13-08-2023 18:33

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General

Target

bin.exe
Size

167KB
MD5

efb72c1ec0608a79de8bd3ee79c0bad2
SHA1

b7ca0fde5e0b4e86d5f7f66defd9c20fbbd2ba23
SHA256

a78a59d1d3598c29e0bfba14bb0ca09a2263f7e60af88cd09a85ee39272bcf79
SHA512

31e720486a325d89e7f80193b9ed37298c50a9cc1dc34d112c8c6ec6e421590fac4284daa98c49f91ac5b3b6b3bec230d58e1f58f0fa9f47ba150f724365198b
SSDEEP

3072:16VXCc3/7KNo2ymzGLo3Kh4zVVBYDPhSkrKjQSKT55oGUFCy:Mj/03zG86KzVVBYDJSAK0T4GUb

Score

10^/10

formbook da rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

3.8

Campaign

Decoy

chainwalkchambers.com

foxyhaul.com

yetisnackdesigns.com

paleodiettips.xyz

51zxsf.com

jisulianxiufu.com

qianbianyun.com

unitedresponders.info

contentlab.video

traveloyunnan.com

tonybehrenslaw.com

adithyafuels.com

huanayule.net

conscious-cross.com

link2register.com

anchoritis.com

vicente20.com

jnmbc.info

m-1944.com

naap-tol.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
behavioral13/memory/2080-55-0x0000000000E00000-0x0000000000E2A000-memory.dmp	formbook
behavioral13/memory/1872-61-0x00000000000D0000-0x00000000000FA000-memory.dmp	formbook
behavioral13/memory/1872-66-0x00000000000D0000-0x00000000000FA000-memory.dmp	formbook

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

2940 cmd.exe

pid	process
2940	cmd.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

bin.execmstp.exe

description	pid	process	target process
PID 2080 set thread context of 1272	2080	bin.exe	Explorer.EXE
PID 1872 set thread context of 1272	1872	cmstp.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

bin.execmstp.exe

pid process

2080 bin.exe
2080 bin.exe
1872 cmstp.exe
1872 cmstp.exe
1872 cmstp.exe
1872 cmstp.exe
1872 cmstp.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1272 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

bin.execmstp.exe

pid process

2080 bin.exe
2080 bin.exe
2080 bin.exe
1872 cmstp.exe
1872 cmstp.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

bin.execmstp.exe

description pid process

Token: SeDebugPrivilege 2080 bin.exe
Token: SeDebugPrivilege 1872 cmstp.exe

pid	process
2080	bin.exe
2080	bin.exe
1872	cmstp.exe
1872	cmstp.exe
1872	cmstp.exe
1872	cmstp.exe
1872	cmstp.exe

pid	process
1272	Explorer.EXE

pid	process
2080	bin.exe
2080	bin.exe
2080	bin.exe
1872	cmstp.exe
1872	cmstp.exe

description	pid	process
Token: SeDebugPrivilege	2080	bin.exe
Token: SeDebugPrivilege	1872	cmstp.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

Explorer.EXEcmstp.exe

description	pid	process	target process
PID 1272 wrote to memory of 1872	1272	Explorer.EXE	cmstp.exe
PID 1272 wrote to memory of 1872	1272	Explorer.EXE	cmstp.exe
PID 1272 wrote to memory of 1872	1272	Explorer.EXE	cmstp.exe
PID 1272 wrote to memory of 1872	1272	Explorer.EXE	cmstp.exe
PID 1272 wrote to memory of 1872	1272	Explorer.EXE	cmstp.exe
PID 1272 wrote to memory of 1872	1272	Explorer.EXE	cmstp.exe
PID 1272 wrote to memory of 1872	1272	Explorer.EXE	cmstp.exe
PID 1872 wrote to memory of 2940	1872	cmstp.exe	cmd.exe
PID 1872 wrote to memory of 2940	1872	cmstp.exe	cmd.exe
PID 1872 wrote to memory of 2940	1872	cmstp.exe	cmd.exe
PID 1872 wrote to memory of 2940	1872	cmstp.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:1272

C:\Users\Admin\AppData\Local\Temp\bin.exe
"C:\Users\Admin\AppData\Local\Temp\bin.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:2080

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:556

C:\Windows\SysWOW64\cmstp.exe
"C:\Windows\SysWOW64\cmstp.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1872

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\bin.exe"
3⤵
- Deletes itself
PID:2940

MITRE ATT&CK Matrix

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Downloads

memory/1272-63-0x00000000045A0000-0x000000000466F000-memory.dmp

Filesize
828KB

Download
memory/1272-56-0x0000000000010000-0x0000000000020000-memory.dmp

Filesize
64KB

Download
memory/1272-70-0x0000000006AD0000-0x0000000006BFE000-memory.dmp

Filesize
1.2MB

Download
memory/1272-68-0x0000000006AD0000-0x0000000006BFE000-memory.dmp

Filesize
1.2MB

Download
memory/1272-58-0x00000000045A0000-0x000000000466F000-memory.dmp

Filesize
828KB

Download
memory/1272-67-0x0000000006AD0000-0x0000000006BFE000-memory.dmp

Filesize
1.2MB

Download
memory/1872-60-0x0000000000FE0000-0x0000000000FF8000-memory.dmp

Filesize
96KB

Download
memory/1872-61-0x00000000000D0000-0x00000000000FA000-memory.dmp

Filesize
168KB

Download
memory/1872-62-0x0000000000B90000-0x0000000000E93000-memory.dmp

Filesize
3.0MB

Download
memory/1872-65-0x0000000000960000-0x00000000009F3000-memory.dmp

Filesize
588KB

Download
memory/1872-66-0x00000000000D0000-0x00000000000FA000-memory.dmp

Filesize
168KB

Download
memory/1872-59-0x0000000000FE0000-0x0000000000FF8000-memory.dmp

Filesize
96KB

Download
memory/2080-54-0x0000000000A70000-0x0000000000D73000-memory.dmp

Filesize
3.0MB

Download
memory/2080-57-0x0000000000190000-0x00000000001A4000-memory.dmp

Filesize
80KB

Download
memory/2080-55-0x0000000000E00000-0x0000000000E2A000-memory.dmp

Filesize
168KB

Download

Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads