formbook | 1da1d27f8c3f4188f1767f87ae85c14e1fda3fa80142af97697864580f1a2397

Analysis

max time kernel
149s
max time network
149s
platform
windows10-1703_x64
resource
win10-20230220-en
resource tags

arch:x64arch:x86image:win10-20230220-enlocale:en-usos:windows10-1703-x64system
submitted
28-03-2023 06:29

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General

Target

1da1d27f8c3f4188f1767f87ae85c14e1fda3fa80142af97697864580f1a2397.exe
Size

1.8MB
MD5

e4a076e7e4ef7dda7760195ed7e69a63
SHA1

01a916d1cb5acae7bcd2e8382d9a3691a2b90b39
SHA256

1da1d27f8c3f4188f1767f87ae85c14e1fda3fa80142af97697864580f1a2397
SHA512

8b23da6af698c2431bb7828291b5da97ba0f0bb87e7f51d623e083eb0e4b408fbb14725b043941ac1afee5dbae6d6c6d4d3780ecc17cd16ad4686b76a4797dbd
SSDEEP

24576:2QpweQZGHo2z01GURwAsmMt+Z1fQh0UXtk/O93eIu0:GGH/b+Z1fQh0Uygu0

Score

10^/10

formbook ar73 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

ar73

Decoy

classgorilla.com

b6817.com

1wwuwa.top

dgslimited.africa

deepwaterships.com

hkshshoptw.shop

hurricanevalleyatvjamboree.com

ckpconsulting.com

laojiangmath.com

authenticityhacking.com

family-doctor-53205.com

investinstgeorgeut.com

lithoearthsolution.africa

quickhealcareltd.co.uk

delightkgrillw.top

freezeclosettoilet.com

coo1star.com

gemgamut.com

enrichednetworksolutions.com

betterbeeclean.com

Signatures

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

Formbook payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/4764-164-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/4764-168-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/3976-176-0x0000000002CE0000-0x0000000002D0F000-memory.dmp	formbook
behavioral1/memory/3976-209-0x0000000002CE0000-0x0000000002D0F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

Processes:

1da1d27f8c3f4188f1767f87ae85c14e1fda3fa80142af97697864580f1a2397.exeMSBuild.exemstsc.exe

description	pid	process	target process
PID 2612 set thread context of 4764	2612	1da1d27f8c3f4188f1767f87ae85c14e1fda3fa80142af97697864580f1a2397.exe	MSBuild.exe
PID 4764 set thread context of 3100	4764	MSBuild.exe	Explorer.EXE
PID 3976 set thread context of 3100	3976	mstsc.exe	Explorer.EXE

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 53 IoCs

Processes:

powershell.exeMSBuild.exemstsc.exe

pid	process
4244	powershell.exe
4244	powershell.exe
4244	powershell.exe
4764	MSBuild.exe
4764	MSBuild.exe
4764	MSBuild.exe
4764	MSBuild.exe
3976	mstsc.exe
3976	mstsc.exe
3976	mstsc.exe
3976	mstsc.exe
3976	mstsc.exe
3976	mstsc.exe
3976	mstsc.exe
3976	mstsc.exe
3976	mstsc.exe
3976	mstsc.exe
3976	mstsc.exe
3976	mstsc.exe
3976	mstsc.exe
3976	mstsc.exe
3976	mstsc.exe
3976	mstsc.exe
3976	mstsc.exe
3976	mstsc.exe
3976	mstsc.exe
3976	mstsc.exe
3976	mstsc.exe
3976	mstsc.exe
3976	mstsc.exe
3976	mstsc.exe
3976	mstsc.exe
3976	mstsc.exe
3976	mstsc.exe
3976	mstsc.exe
3976	mstsc.exe
3976	mstsc.exe
3976	mstsc.exe
3976	mstsc.exe
3976	mstsc.exe
3976	mstsc.exe
3976	mstsc.exe
3976	mstsc.exe
3976	mstsc.exe
3976	mstsc.exe
3976	mstsc.exe
3976	mstsc.exe
3976	mstsc.exe
3976	mstsc.exe
3976	mstsc.exe
3976	mstsc.exe
3976	mstsc.exe
3976	mstsc.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3100 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

MSBuild.exemstsc.exe

pid process

4764 MSBuild.exe
4764 MSBuild.exe
4764 MSBuild.exe
3976 mstsc.exe
3976 mstsc.exe

pid	process
3100	Explorer.EXE

pid	process
4764	MSBuild.exe
4764	MSBuild.exe
4764	MSBuild.exe
3976	mstsc.exe
3976	mstsc.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

Processes:

1da1d27f8c3f4188f1767f87ae85c14e1fda3fa80142af97697864580f1a2397.exepowershell.exeMSBuild.exemstsc.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	2612	1da1d27f8c3f4188f1767f87ae85c14e1fda3fa80142af97697864580f1a2397.exe
Token: SeDebugPrivilege	4244	powershell.exe
Token: SeDebugPrivilege	4764	MSBuild.exe
Token: SeDebugPrivilege	3976	mstsc.exe
Token: SeShutdownPrivilege	3100	Explorer.EXE
Token: SeCreatePagefilePrivilege	3100	Explorer.EXE
Token: SeShutdownPrivilege	3100	Explorer.EXE
Token: SeCreatePagefilePrivilege	3100	Explorer.EXE
Token: SeShutdownPrivilege	3100	Explorer.EXE
Token: SeCreatePagefilePrivilege	3100	Explorer.EXE
Token: SeShutdownPrivilege	3100	Explorer.EXE
Token: SeCreatePagefilePrivilege	3100	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

1da1d27f8c3f4188f1767f87ae85c14e1fda3fa80142af97697864580f1a2397.exeExplorer.EXEmstsc.exe

description	pid	process	target process
PID 2612 wrote to memory of 4244	2612	1da1d27f8c3f4188f1767f87ae85c14e1fda3fa80142af97697864580f1a2397.exe	powershell.exe
PID 2612 wrote to memory of 4244	2612	1da1d27f8c3f4188f1767f87ae85c14e1fda3fa80142af97697864580f1a2397.exe	powershell.exe
PID 2612 wrote to memory of 4244	2612	1da1d27f8c3f4188f1767f87ae85c14e1fda3fa80142af97697864580f1a2397.exe	powershell.exe
PID 2612 wrote to memory of 4764	2612	1da1d27f8c3f4188f1767f87ae85c14e1fda3fa80142af97697864580f1a2397.exe	MSBuild.exe
PID 2612 wrote to memory of 4764	2612	1da1d27f8c3f4188f1767f87ae85c14e1fda3fa80142af97697864580f1a2397.exe	MSBuild.exe
PID 2612 wrote to memory of 4764	2612	1da1d27f8c3f4188f1767f87ae85c14e1fda3fa80142af97697864580f1a2397.exe	MSBuild.exe
PID 2612 wrote to memory of 4764	2612	1da1d27f8c3f4188f1767f87ae85c14e1fda3fa80142af97697864580f1a2397.exe	MSBuild.exe
PID 2612 wrote to memory of 4764	2612	1da1d27f8c3f4188f1767f87ae85c14e1fda3fa80142af97697864580f1a2397.exe	MSBuild.exe
PID 2612 wrote to memory of 4764	2612	1da1d27f8c3f4188f1767f87ae85c14e1fda3fa80142af97697864580f1a2397.exe	MSBuild.exe
PID 3100 wrote to memory of 3976	3100	Explorer.EXE	mstsc.exe
PID 3100 wrote to memory of 3976	3100	Explorer.EXE	mstsc.exe
PID 3100 wrote to memory of 3976	3100	Explorer.EXE	mstsc.exe
PID 3976 wrote to memory of 2644	3976	mstsc.exe	cmd.exe
PID 3976 wrote to memory of 2644	3976	mstsc.exe	cmd.exe
PID 3976 wrote to memory of 2644	3976	mstsc.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3100

C:\Users\Admin\AppData\Local\Temp\1da1d27f8c3f4188f1767f87ae85c14e1fda3fa80142af97697864580f1a2397.exe
"C:\Users\Admin\AppData\Local\Temp\1da1d27f8c3f4188f1767f87ae85c14e1fda3fa80142af97697864580f1a2397.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2612

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4244

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:4764

C:\Windows\SysWOW64\mstsc.exe
"C:\Windows\SysWOW64\mstsc.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3976

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
3⤵
PID:2644

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_z5dj2thr.tsa.ps1
Filesize
1B

MD5
c4ca4238a0b923820dcc509a6f75849b

SHA1
356a192b7913b04c54574d18c28d46e6395428ab

SHA256
6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

SHA512
4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

Download Submit
memory/2612-121-0x0000000005F20000-0x000000000641E000-memory.dmp

Filesize
5.0MB

Download
memory/2612-122-0x0000000005950000-0x00000000059E2000-memory.dmp

Filesize
584KB

Download
memory/2612-123-0x0000000005A00000-0x0000000005A0A000-memory.dmp

Filesize
40KB

Download
memory/2612-124-0x0000000005910000-0x0000000005920000-memory.dmp

Filesize
64KB

Download
memory/2612-125-0x0000000008080000-0x00000000081E6000-memory.dmp

Filesize
1.4MB

Download
memory/2612-126-0x00000000081E0000-0x0000000008530000-memory.dmp

Filesize
3.3MB

Download
memory/2612-127-0x0000000008580000-0x00000000085CB000-memory.dmp

Filesize
300KB

Download
memory/2612-128-0x0000000008640000-0x00000000086D2000-memory.dmp

Filesize
584KB

Download
memory/2612-129-0x0000000008700000-0x0000000008722000-memory.dmp

Filesize
136KB

Download
memory/2612-120-0x0000000000F40000-0x000000000110A000-memory.dmp

Filesize
1.8MB

Download
memory/2612-156-0x0000000005910000-0x0000000005920000-memory.dmp

Filesize
64KB

Download
memory/3100-214-0x0000000007050000-0x00000000071B6000-memory.dmp

Filesize
1.4MB

Download
memory/3100-223-0x0000000001330000-0x0000000001340000-memory.dmp

Filesize
64KB

Download
memory/3100-247-0x0000000001500000-0x000000000150D000-memory.dmp

Filesize
52KB

Download
memory/3100-246-0x0000000001330000-0x0000000001340000-memory.dmp

Filesize
64KB

Download
memory/3100-245-0x0000000001330000-0x0000000001340000-memory.dmp

Filesize
64KB

Download
memory/3100-244-0x0000000001330000-0x0000000001340000-memory.dmp

Filesize
64KB

Download
memory/3100-243-0x0000000001330000-0x0000000001340000-memory.dmp

Filesize
64KB

Download
memory/3100-240-0x0000000001330000-0x0000000001340000-memory.dmp

Filesize
64KB

Download
memory/3100-239-0x0000000001330000-0x0000000001340000-memory.dmp

Filesize
64KB

Download
memory/3100-238-0x0000000001330000-0x0000000001340000-memory.dmp

Filesize
64KB

Download
memory/3100-237-0x0000000001330000-0x0000000001340000-memory.dmp

Filesize
64KB

Download
memory/3100-236-0x0000000001330000-0x0000000001340000-memory.dmp

Filesize
64KB

Download
memory/3100-233-0x0000000001330000-0x0000000001340000-memory.dmp

Filesize
64KB

Download
memory/3100-230-0x0000000001330000-0x0000000001340000-memory.dmp

Filesize
64KB

Download
memory/3100-229-0x0000000001330000-0x0000000001340000-memory.dmp

Filesize
64KB

Download
memory/3100-228-0x0000000001330000-0x0000000001340000-memory.dmp

Filesize
64KB

Download
memory/3100-170-0x0000000003220000-0x0000000003385000-memory.dmp

Filesize
1.4MB

Download
memory/3100-227-0x0000000001330000-0x0000000001340000-memory.dmp

Filesize
64KB

Download
memory/3100-226-0x0000000001330000-0x0000000001340000-memory.dmp

Filesize
64KB

Download
memory/3100-222-0x00000000012E0000-0x00000000012F0000-memory.dmp

Filesize
64KB

Download
memory/3100-217-0x0000000007050000-0x00000000071B6000-memory.dmp

Filesize
1.4MB

Download
memory/3100-215-0x00000000014E0000-0x00000000014E3000-memory.dmp

Filesize
12KB

Download
memory/3100-180-0x00000000012E0000-0x00000000012F0000-memory.dmp

Filesize
64KB

Download
memory/3100-182-0x0000000001330000-0x0000000001340000-memory.dmp

Filesize
64KB

Download
memory/3100-186-0x00000000045C0000-0x00000000048E0000-memory.dmp

Filesize
3.1MB

Download
memory/3100-185-0x0000000001330000-0x0000000001340000-memory.dmp

Filesize
64KB

Download
memory/3100-188-0x0000000001330000-0x0000000001340000-memory.dmp

Filesize
64KB

Download
memory/3100-189-0x0000000001330000-0x0000000001340000-memory.dmp

Filesize
64KB

Download
memory/3100-191-0x0000000001330000-0x0000000001340000-memory.dmp

Filesize
64KB

Download
memory/3100-190-0x0000000001330000-0x0000000001340000-memory.dmp

Filesize
64KB

Download
memory/3100-194-0x0000000001330000-0x0000000001340000-memory.dmp

Filesize
64KB

Download
memory/3100-197-0x0000000001330000-0x0000000001340000-memory.dmp

Filesize
64KB

Download
memory/3100-198-0x0000000001330000-0x0000000001340000-memory.dmp

Filesize
64KB

Download
memory/3100-199-0x0000000001330000-0x0000000001340000-memory.dmp

Filesize
64KB

Download
memory/3100-200-0x0000000001330000-0x0000000001340000-memory.dmp

Filesize
64KB

Download
memory/3100-201-0x0000000001330000-0x0000000001340000-memory.dmp

Filesize
64KB

Download
memory/3100-204-0x0000000001330000-0x0000000001340000-memory.dmp

Filesize
64KB

Download
memory/3100-205-0x0000000001330000-0x0000000001340000-memory.dmp

Filesize
64KB

Download
memory/3100-206-0x00000000014E0000-0x00000000014E3000-memory.dmp

Filesize
12KB

Download
memory/3100-207-0x0000000001330000-0x0000000001340000-memory.dmp

Filesize
64KB

Download
memory/3100-208-0x0000000001330000-0x0000000001340000-memory.dmp

Filesize
64KB

Download
memory/3100-213-0x0000000007050000-0x00000000071B6000-memory.dmp

Filesize
1.4MB

Download
memory/3100-211-0x0000000003220000-0x0000000003385000-memory.dmp

Filesize
1.4MB

Download
memory/3976-173-0x0000000000080000-0x000000000037C000-memory.dmp

Filesize
3.0MB

Download
memory/3976-209-0x0000000002CE0000-0x0000000002D0F000-memory.dmp

Filesize
188KB

Download
memory/3976-212-0x00000000044F0000-0x0000000004583000-memory.dmp

Filesize
588KB

Download
memory/3976-176-0x0000000002CE0000-0x0000000002D0F000-memory.dmp

Filesize
188KB

Download
memory/3976-177-0x00000000045C0000-0x00000000048E0000-memory.dmp

Filesize
3.1MB

Download
memory/3976-175-0x0000000000080000-0x000000000037C000-memory.dmp

Filesize
3.0MB

Download
memory/3976-171-0x0000000000080000-0x000000000037C000-memory.dmp

Filesize
3.0MB

Download
memory/4244-133-0x0000000007C10000-0x0000000008238000-memory.dmp

Filesize
6.2MB

Download
memory/4244-154-0x000000000A300000-0x000000000A978000-memory.dmp

Filesize
6.5MB

Download
memory/4244-136-0x00000000075D0000-0x00000000075E0000-memory.dmp

Filesize
64KB

Download
memory/4244-137-0x00000000075D0000-0x00000000075E0000-memory.dmp

Filesize
64KB

Download
memory/4244-138-0x0000000007BD0000-0x0000000007BEC000-memory.dmp

Filesize
112KB

Download
memory/4244-139-0x0000000008B00000-0x0000000008B76000-memory.dmp

Filesize
472KB

Download
memory/4244-158-0x00000000075D0000-0x00000000075E0000-memory.dmp

Filesize
64KB

Download
memory/4244-157-0x00000000075D0000-0x00000000075E0000-memory.dmp

Filesize
64KB

Download
memory/4244-132-0x00000000052C0000-0x00000000052F6000-memory.dmp

Filesize
216KB

Download
memory/4244-155-0x00000000098A0000-0x00000000098BA000-memory.dmp

Filesize
104KB

Download
memory/4244-135-0x0000000007AE0000-0x0000000007B46000-memory.dmp

Filesize
408KB

Download
memory/4244-134-0x0000000007A70000-0x0000000007AD6000-memory.dmp

Filesize
408KB

Download
memory/4764-164-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4764-167-0x0000000001630000-0x0000000001950000-memory.dmp

Filesize
3.1MB

Download
memory/4764-168-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4764-169-0x00000000010D0000-0x00000000010E4000-memory.dmp

Filesize
80KB

Download