formbook | 9d5019cef8a6bc52d94e6b4becf6249f2d202ac90204bbf508f9e62454f2f2fd

General

Target

tmp.exe
Size

285KB
MD5

a413d04a39c86bd0b4ca116227d20a30
SHA1

0d88f2cca0aae58c31add82851c42fa1702cd4cf
SHA256

9d5019cef8a6bc52d94e6b4becf6249f2d202ac90204bbf508f9e62454f2f2fd
SHA512

e6d1662c7f389da0016b338185d4c4c3aae6240759641f8f8b62c07f534fbc956fa213cbd0ed37f607b67e0e38fb4635ee1031ada73c7913da921823284e3318
SSDEEP

6144:36dmbMKjUztT0dAxqLjd07V8y/6+8DXDQ9NA6igSOyxRVMvM:h4AUzt0dAxq/ky+8nGig3yxRuM

Score

10^/10

formbook guloader gtt8 downloader rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

gtt8

Decoy

42taijijian.com

rehnimiyanales.com

cst247.shop

usdt09.tech

lennartjahn.com

aaabestcbd.com

marketing-digital-france-2.xyz

be4time.com

slotyfly.com

parimaladragonflywellness.life

phonereda.com

01076.win

thehoundlounge.info

high-vent.co.uk

14thfeb.com

onlyforks.info

joseeandtim.com

mylegoclub.com

iuser-findmy.info

uninassaupolopinheiro.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
downloader guloader

Formbook payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/4532-145-0x0000000000400000-0x0000000001654000-memory.dmp	formbook
behavioral2/memory/1968-155-0x0000000000590000-0x00000000005BF000-memory.dmp	formbook
behavioral2/memory/4532-156-0x0000000000400000-0x0000000001654000-memory.dmp	formbook
behavioral2/memory/1968-158-0x0000000000590000-0x00000000005BF000-memory.dmp	formbook

Checks QEMU agent file 2 TTPs 2 IoCs

Checks presence of QEMU agent, possibly to detect virtualization.

Query Registry

T1012

System Information Discovery

T1082

Processes:

tmp.exetmp.exe

description	ioc	process
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	tmp.exe
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	tmp.exe

Loads dropped DLL 1 IoCs

Processes:

tmp.exe

pid process

1788 tmp.exe
Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

Processes:

tmp.exe

pid process

4532 tmp.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

tmp.exetmp.exe

pid process

1788 tmp.exe
4532 tmp.exe

pid	process
1788	tmp.exe

pid	process
1788	tmp.exe
4532	tmp.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

tmp.exetmp.exesvchost.exe

description	pid	process	target process
PID 1788 set thread context of 4532	1788	tmp.exe	tmp.exe
PID 4532 set thread context of 3156	4532	tmp.exe	Explorer.EXE
PID 1968 set thread context of 3156	1968	svchost.exe	Explorer.EXE

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 32 IoCs

Processes:

tmp.exesvchost.exe

pid	process
4532	tmp.exe
4532	tmp.exe
4532	tmp.exe
4532	tmp.exe
1968	svchost.exe
1968	svchost.exe
1968	svchost.exe
1968	svchost.exe
1968	svchost.exe
1968	svchost.exe
1968	svchost.exe
1968	svchost.exe
1968	svchost.exe
1968	svchost.exe
1968	svchost.exe
1968	svchost.exe
1968	svchost.exe
1968	svchost.exe
1968	svchost.exe
1968	svchost.exe
1968	svchost.exe
1968	svchost.exe
1968	svchost.exe
1968	svchost.exe
1968	svchost.exe
1968	svchost.exe
1968	svchost.exe
1968	svchost.exe
1968	svchost.exe
1968	svchost.exe
1968	svchost.exe
1968	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3156 Explorer.EXE
Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

tmp.exetmp.exesvchost.exe

pid process

1788 tmp.exe
4532 tmp.exe
4532 tmp.exe
4532 tmp.exe
1968 svchost.exe
1968 svchost.exe

pid	process
3156	Explorer.EXE

pid	process
1788	tmp.exe
4532	tmp.exe
4532	tmp.exe
4532	tmp.exe
1968	svchost.exe
1968	svchost.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

Processes:

tmp.exeExplorer.EXEsvchost.exe

description	pid	process
Token: SeDebugPrivilege	4532	tmp.exe
Token: SeShutdownPrivilege	3156	Explorer.EXE
Token: SeCreatePagefilePrivilege	3156	Explorer.EXE
Token: SeShutdownPrivilege	3156	Explorer.EXE
Token: SeCreatePagefilePrivilege	3156	Explorer.EXE
Token: SeDebugPrivilege	1968	svchost.exe
Token: SeShutdownPrivilege	3156	Explorer.EXE
Token: SeCreatePagefilePrivilege	3156	Explorer.EXE
Token: SeShutdownPrivilege	3156	Explorer.EXE
Token: SeCreatePagefilePrivilege	3156	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

tmp.exeExplorer.EXEsvchost.exe

description	pid	process	target process
PID 1788 wrote to memory of 4532	1788	tmp.exe	tmp.exe
PID 1788 wrote to memory of 4532	1788	tmp.exe	tmp.exe
PID 1788 wrote to memory of 4532	1788	tmp.exe	tmp.exe
PID 1788 wrote to memory of 4532	1788	tmp.exe	tmp.exe
PID 3156 wrote to memory of 1968	3156	Explorer.EXE	svchost.exe
PID 3156 wrote to memory of 1968	3156	Explorer.EXE	svchost.exe
PID 3156 wrote to memory of 1968	3156	Explorer.EXE	svchost.exe
PID 1968 wrote to memory of 4388	1968	svchost.exe	cmd.exe
PID 1968 wrote to memory of 4388	1968	svchost.exe	cmd.exe
PID 1968 wrote to memory of 4388	1968	svchost.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3156

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
2⤵
- Checks QEMU agent file
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1788

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
3⤵
- Checks QEMU agent file
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:4532

C:\Windows\SysWOW64\svchost.exe
"C:\Windows\SysWOW64\svchost.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1968

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
3⤵
PID:4388

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsiF67B.tmp\System.dll
Filesize
11KB

MD5
0063d48afe5a0cdc02833145667b6641

SHA1
e7eb614805d183ecb1127c62decb1a6be1b4f7a8

SHA256
ac9dfe3b35ea4b8932536ed7406c29a432976b685cc5322f94ef93df920fede7

SHA512
71cbbcaeb345e09306e368717ea0503fe8df485be2e95200febc61bcd8ba74fb4211cd263c232f148c0123f6c6f2e3fd4ea20bdecc4070f5208c35c6920240f0

Download Submit
memory/1788-140-0x0000000003220000-0x0000000006158000-memory.dmp

Filesize
47.2MB

Download
memory/1788-141-0x0000000003220000-0x0000000006158000-memory.dmp

Filesize
47.2MB

Download
memory/1968-151-0x0000000000FB0000-0x0000000000FBE000-memory.dmp

Filesize
56KB

Download
memory/1968-160-0x0000000000EA0000-0x0000000000F33000-memory.dmp

Filesize
588KB

Download
memory/1968-158-0x0000000000590000-0x00000000005BF000-memory.dmp

Filesize
188KB

Download
memory/1968-157-0x0000000001400000-0x000000000174A000-memory.dmp

Filesize
3.3MB

Download
memory/1968-155-0x0000000000590000-0x00000000005BF000-memory.dmp

Filesize
188KB

Download
memory/1968-153-0x0000000000FB0000-0x0000000000FBE000-memory.dmp

Filesize
56KB

Download
memory/3156-173-0x0000000002750000-0x0000000002760000-memory.dmp

Filesize
64KB

Download
memory/3156-176-0x0000000002750000-0x0000000002760000-memory.dmp

Filesize
64KB

Download
memory/3156-183-0x0000000002750000-0x0000000002760000-memory.dmp

Filesize
64KB

Download
memory/3156-182-0x0000000002750000-0x0000000002760000-memory.dmp

Filesize
64KB

Download
memory/3156-181-0x0000000002750000-0x0000000002760000-memory.dmp

Filesize
64KB

Download
memory/3156-180-0x0000000002750000-0x0000000002760000-memory.dmp

Filesize
64KB

Download
memory/3156-179-0x0000000002750000-0x0000000002760000-memory.dmp

Filesize
64KB

Download
memory/3156-178-0x0000000002750000-0x0000000002760000-memory.dmp

Filesize
64KB

Download
memory/3156-177-0x0000000002750000-0x0000000002760000-memory.dmp

Filesize
64KB

Download
memory/3156-150-0x0000000007CF0000-0x0000000007E28000-memory.dmp

Filesize
1.2MB

Download
memory/3156-161-0x0000000007F00000-0x000000000802F000-memory.dmp

Filesize
1.2MB

Download
memory/3156-163-0x0000000007F00000-0x000000000802F000-memory.dmp

Filesize
1.2MB

Download
memory/3156-164-0x0000000007F00000-0x000000000802F000-memory.dmp

Filesize
1.2MB

Download
memory/3156-166-0x0000000002750000-0x0000000002760000-memory.dmp

Filesize
64KB

Download
memory/3156-167-0x0000000002750000-0x0000000002760000-memory.dmp

Filesize
64KB

Download
memory/3156-168-0x0000000002750000-0x0000000002760000-memory.dmp

Filesize
64KB

Download
memory/3156-170-0x0000000002750000-0x0000000002760000-memory.dmp

Filesize
64KB

Download
memory/3156-172-0x0000000002760000-0x0000000002770000-memory.dmp

Filesize
64KB

Download
memory/3156-175-0x0000000002750000-0x0000000002760000-memory.dmp

Filesize
64KB

Download
memory/3156-171-0x0000000002750000-0x0000000002760000-memory.dmp

Filesize
64KB

Download
memory/3156-174-0x0000000002750000-0x0000000002760000-memory.dmp

Filesize
64KB

Download
memory/4532-142-0x0000000000400000-0x0000000001654000-memory.dmp

Filesize
18.3MB

Download
memory/4532-143-0x0000000001660000-0x0000000004598000-memory.dmp

Filesize
47.2MB

Download
memory/4532-144-0x0000000001660000-0x0000000004598000-memory.dmp

Filesize
47.2MB

Download
memory/4532-145-0x0000000000400000-0x0000000001654000-memory.dmp

Filesize
18.3MB

Download
memory/4532-156-0x0000000000400000-0x0000000001654000-memory.dmp

Filesize
18.3MB

Download
memory/4532-154-0x0000000001660000-0x0000000004598000-memory.dmp

Filesize
47.2MB

Download
memory/4532-147-0x0000000001660000-0x0000000004598000-memory.dmp

Filesize
47.2MB

Download
memory/4532-148-0x00000000349E0000-0x0000000034D2A000-memory.dmp

Filesize
3.3MB

Download
memory/4532-149-0x0000000034830000-0x0000000034844000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads