formbook | 5978ce4905969580753f948beb8265a13d133cf29f9ddb206475a7f06f8fc885

General

Target

000040021.exe
Size

179KB
MD5

6f6f64b82c949798ec80ecddea570ba9
SHA1

9895fe43bf8b037ec9110294e681410f419cf64b
SHA256

5978ce4905969580753f948beb8265a13d133cf29f9ddb206475a7f06f8fc885
SHA512

263308644df6dfc89d2466646ec7fda1092150128af96b8c62050c1b30f8ee0f8b0fa4ed03a375f2c78e5f5926e7b043db65b9a8b484b1d5a88760bb628e6cc6

Score

10^/10

formbook netwire oh75 botnet persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

oh75

Decoy

denizgidam.com

6cc06.com

charlottewaldburgzeil.com

medijanus.com

qingdaoyiersan.com

datcabilgisayar.xyz

111439d.com

xn--1ruo40k.com

wu6enxwcx5h3.xyz

vnscloud.net

brtka.xyz

showztime.com

promocoesdedezenbro.com

wokpy.com

chnowuk.online

rockshotscafe.com

pelrjy.com

nato-riness.com

feixiang-chem.com

thcoinexchange.com

Extracted

Family

netwire

C2

127.0.0.1:3360

212.192.246.209:141

Attributes

activex_autorun
false
activex_key
copy_executable
false
delete_original
false
host_id
04-22
install_path
keylogger_dir
lock_executable
false
mutex
offline_keylogger
false
password
123456
registry_autorun
false
startup_name
�k
use_mutex
false

Signatures

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

NetWire RAT payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/4240-159-0x0000000000400000-0x0000000000444000-memory.dmp	netwire
behavioral2/memory/4240-161-0x0000000000400000-0x0000000000444000-memory.dmp	netwire
behavioral2/memory/4240-162-0x0000000000400000-0x0000000000444000-memory.dmp	netwire

Netwire
Netwire is a RAT with main functionalities focused password stealing and keylogging, but also includes remote control capabilities as well.
botnet stealer netwire

Formbook Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/2556-142-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2556-144-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2720-151-0x00000000007F0000-0x000000000081F000-memory.dmp	formbook

Executes dropped EXE 1 IoCs

Processes:

Kyxlubuhi.exe

pid process

1920 Kyxlubuhi.exe

pid	process
1920	Kyxlubuhi.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

000040021.exeKyxlubuhi.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	000040021.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	Kyxlubuhi.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

InstallUtil.exe000040021.exeKyxlubuhi.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\	InstallUtil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\‚k = "C:\\Windows\\Microsoft.NET\\Framework\\v4.0.30319\\InstallUtil.exe"	InstallUtil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Aoev = "\"C:\\Users\\Admin\\AppData\\Roaming\\Nakgjel\\Aoev.exe\""	000040021.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Aoev = "\"C:\\Users\\Admin\\AppData\\Roaming\\Nakgjel\\Aoev.exe\""	Kyxlubuhi.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

000040021.exeInstallUtil.exeWWAHost.exeKyxlubuhi.exe

description	pid	process	target process
PID 372 set thread context of 2556	372	000040021.exe	InstallUtil.exe
PID 2556 set thread context of 3148	2556	InstallUtil.exe	Explorer.EXE
PID 2720 set thread context of 3148	2720	WWAHost.exe	Explorer.EXE
PID 1920 set thread context of 4240	1920	Kyxlubuhi.exe	InstallUtil.exe

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

System Information Discovery
T1082
Delays execution with timeout.exe 2 IoCs
evasion

Processes:

timeout.exetimeout.exe

pid process

1996 timeout.exe
4408 timeout.exe

pid	process
1996	timeout.exe
4408	timeout.exe

Suspicious behavior: EnumeratesProcesses 58 IoCs

Processes:

000040021.exeInstallUtil.exeWWAHost.exeKyxlubuhi.exe

pid	process
372	000040021.exe
372	000040021.exe
372	000040021.exe
372	000040021.exe
372	000040021.exe
372	000040021.exe
2556	InstallUtil.exe
2556	InstallUtil.exe
2556	InstallUtil.exe
2556	InstallUtil.exe
2720	WWAHost.exe
2720	WWAHost.exe
2720	WWAHost.exe
2720	WWAHost.exe
2720	WWAHost.exe
2720	WWAHost.exe
2720	WWAHost.exe
2720	WWAHost.exe
1920	Kyxlubuhi.exe
1920	Kyxlubuhi.exe
2720	WWAHost.exe
2720	WWAHost.exe
2720	WWAHost.exe
2720	WWAHost.exe
2720	WWAHost.exe
2720	WWAHost.exe
2720	WWAHost.exe
2720	WWAHost.exe
2720	WWAHost.exe
2720	WWAHost.exe
2720	WWAHost.exe
2720	WWAHost.exe
2720	WWAHost.exe
2720	WWAHost.exe
2720	WWAHost.exe
2720	WWAHost.exe
2720	WWAHost.exe
2720	WWAHost.exe
2720	WWAHost.exe
2720	WWAHost.exe
2720	WWAHost.exe
2720	WWAHost.exe
2720	WWAHost.exe
2720	WWAHost.exe
2720	WWAHost.exe
2720	WWAHost.exe
2720	WWAHost.exe
2720	WWAHost.exe
2720	WWAHost.exe
2720	WWAHost.exe
2720	WWAHost.exe
2720	WWAHost.exe
2720	WWAHost.exe
2720	WWAHost.exe
2720	WWAHost.exe
2720	WWAHost.exe
2720	WWAHost.exe
2720	WWAHost.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3148 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

InstallUtil.exeWWAHost.exe

pid process

2556 InstallUtil.exe
2556 InstallUtil.exe
2556 InstallUtil.exe
2720 WWAHost.exe
2720 WWAHost.exe

pid	process
3148	Explorer.EXE

pid	process
2556	InstallUtil.exe
2556	InstallUtil.exe
2556	InstallUtil.exe
2720	WWAHost.exe
2720	WWAHost.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

Processes:

000040021.exeInstallUtil.exeWWAHost.exeKyxlubuhi.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	372	000040021.exe
Token: SeDebugPrivilege	2556	InstallUtil.exe
Token: SeDebugPrivilege	2720	WWAHost.exe
Token: SeDebugPrivilege	1920	Kyxlubuhi.exe
Token: SeShutdownPrivilege	3148	Explorer.EXE
Token: SeCreatePagefilePrivilege	3148	Explorer.EXE
Token: SeShutdownPrivilege	3148	Explorer.EXE
Token: SeCreatePagefilePrivilege	3148	Explorer.EXE
Token: SeShutdownPrivilege	3148	Explorer.EXE
Token: SeCreatePagefilePrivilege	3148	Explorer.EXE

Suspicious use of WriteProcessMemory 42 IoCs

Processes:

000040021.execmd.exeExplorer.EXEWWAHost.exeKyxlubuhi.execmd.exe

description	pid	process	target process
PID 372 wrote to memory of 976	372	000040021.exe	cmd.exe
PID 372 wrote to memory of 976	372	000040021.exe	cmd.exe
PID 372 wrote to memory of 976	372	000040021.exe	cmd.exe
PID 976 wrote to memory of 1996	976	cmd.exe	timeout.exe
PID 976 wrote to memory of 1996	976	cmd.exe	timeout.exe
PID 976 wrote to memory of 1996	976	cmd.exe	timeout.exe
PID 372 wrote to memory of 1920	372	000040021.exe	Kyxlubuhi.exe
PID 372 wrote to memory of 1920	372	000040021.exe	Kyxlubuhi.exe
PID 372 wrote to memory of 1920	372	000040021.exe	Kyxlubuhi.exe
PID 372 wrote to memory of 2416	372	000040021.exe	InstallUtil.exe
PID 372 wrote to memory of 2416	372	000040021.exe	InstallUtil.exe
PID 372 wrote to memory of 2416	372	000040021.exe	InstallUtil.exe
PID 372 wrote to memory of 2556	372	000040021.exe	InstallUtil.exe
PID 372 wrote to memory of 2556	372	000040021.exe	InstallUtil.exe
PID 372 wrote to memory of 2556	372	000040021.exe	InstallUtil.exe
PID 372 wrote to memory of 2556	372	000040021.exe	InstallUtil.exe
PID 372 wrote to memory of 2556	372	000040021.exe	InstallUtil.exe
PID 372 wrote to memory of 2556	372	000040021.exe	InstallUtil.exe
PID 3148 wrote to memory of 2720	3148	Explorer.EXE	WWAHost.exe
PID 3148 wrote to memory of 2720	3148	Explorer.EXE	WWAHost.exe
PID 3148 wrote to memory of 2720	3148	Explorer.EXE	WWAHost.exe
PID 2720 wrote to memory of 5036	2720	WWAHost.exe	cmd.exe
PID 2720 wrote to memory of 5036	2720	WWAHost.exe	cmd.exe
PID 2720 wrote to memory of 5036	2720	WWAHost.exe	cmd.exe
PID 1920 wrote to memory of 3488	1920	Kyxlubuhi.exe	cmd.exe
PID 1920 wrote to memory of 3488	1920	Kyxlubuhi.exe	cmd.exe
PID 1920 wrote to memory of 3488	1920	Kyxlubuhi.exe	cmd.exe
PID 3488 wrote to memory of 4408	3488	cmd.exe	timeout.exe
PID 3488 wrote to memory of 4408	3488	cmd.exe	timeout.exe
PID 3488 wrote to memory of 4408	3488	cmd.exe	timeout.exe
PID 1920 wrote to memory of 4240	1920	Kyxlubuhi.exe	InstallUtil.exe
PID 1920 wrote to memory of 4240	1920	Kyxlubuhi.exe	InstallUtil.exe
PID 1920 wrote to memory of 4240	1920	Kyxlubuhi.exe	InstallUtil.exe
PID 1920 wrote to memory of 4240	1920	Kyxlubuhi.exe	InstallUtil.exe
PID 1920 wrote to memory of 4240	1920	Kyxlubuhi.exe	InstallUtil.exe
PID 1920 wrote to memory of 4240	1920	Kyxlubuhi.exe	InstallUtil.exe
PID 1920 wrote to memory of 4240	1920	Kyxlubuhi.exe	InstallUtil.exe
PID 1920 wrote to memory of 4240	1920	Kyxlubuhi.exe	InstallUtil.exe
PID 1920 wrote to memory of 4240	1920	Kyxlubuhi.exe	InstallUtil.exe
PID 1920 wrote to memory of 4240	1920	Kyxlubuhi.exe	InstallUtil.exe
PID 1920 wrote to memory of 4240	1920	Kyxlubuhi.exe	InstallUtil.exe
PID 1920 wrote to memory of 4240	1920	Kyxlubuhi.exe	InstallUtil.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3148

C:\Users\Admin\AppData\Local\Temp\000040021.exe
"C:\Users\Admin\AppData\Local\Temp\000040021.exe"
2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:372

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout 10
3⤵
- Suspicious use of WriteProcessMemory
PID:976

C:\Windows\SysWOW64\timeout.exe
timeout 10
4⤵
- Delays execution with timeout.exe
PID:1996

C:\Users\Admin\AppData\Local\Temp\Kyxlubuhi.exe
"C:\Users\Admin\AppData\Local\Temp\Kyxlubuhi.exe"
3⤵
- Executes dropped EXE
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1920

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout 10
4⤵
- Suspicious use of WriteProcessMemory
PID:3488

C:\Windows\SysWOW64\timeout.exe
timeout 10
5⤵
- Delays execution with timeout.exe
PID:4408

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
4⤵
- Adds Run key to start application
PID:4240

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
3⤵
PID:2416

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:2556

C:\Windows\SysWOW64\WWAHost.exe
"C:\Windows\SysWOW64\WWAHost.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2720

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
3⤵
PID:5036

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\Kyxlubuhi.exe
Filesize
179KB

MD5
12c5bc1a739dfd4e5a54c0a1b47daff6

SHA1
e4d994d9a61824ada303d54448d2d384484a961c

SHA256
3ccf4ad2172cb3a4e39fbdb1692673d3d4e06541dff20bc896e033f2caeac28a

SHA512
e58795819fe73952529cee7f18a80bbfd0575d15b71b1a07e79e6832faf477653b718d70e881db43933876aaa58d723ad2f57479ce1dd327979a43185f9859dc

Download Submit
C:\Users\Admin\AppData\Local\Temp\Kyxlubuhi.exe
Filesize
179KB

MD5
12c5bc1a739dfd4e5a54c0a1b47daff6

SHA1
e4d994d9a61824ada303d54448d2d384484a961c

SHA256
3ccf4ad2172cb3a4e39fbdb1692673d3d4e06541dff20bc896e033f2caeac28a

SHA512
e58795819fe73952529cee7f18a80bbfd0575d15b71b1a07e79e6832faf477653b718d70e881db43933876aaa58d723ad2f57479ce1dd327979a43185f9859dc

Download Submit
C:\Users\Admin\AppData\Roaming\Nakgjel\Aoev.exe
Filesize
179KB

MD5
12c5bc1a739dfd4e5a54c0a1b47daff6

SHA1
e4d994d9a61824ada303d54448d2d384484a961c

SHA256
3ccf4ad2172cb3a4e39fbdb1692673d3d4e06541dff20bc896e033f2caeac28a

SHA512
e58795819fe73952529cee7f18a80bbfd0575d15b71b1a07e79e6832faf477653b718d70e881db43933876aaa58d723ad2f57479ce1dd327979a43185f9859dc

Download Submit
memory/372-130-0x0000000000F60000-0x0000000000F92000-memory.dmp

Filesize
200KB

Download
memory/372-131-0x0000000005F90000-0x0000000006534000-memory.dmp

Filesize
5.6MB

Download
memory/372-132-0x0000000005930000-0x00000000059C2000-memory.dmp

Filesize
584KB

Download
memory/372-133-0x00000000059F0000-0x00000000059FA000-memory.dmp

Filesize
40KB

Download
memory/976-134-0x0000000000000000-mapping.dmp

Download
memory/1920-136-0x0000000000000000-mapping.dmp

Download
memory/1920-139-0x00000000003F0000-0x0000000000422000-memory.dmp

Filesize
200KB

Download
memory/1996-135-0x0000000000000000-mapping.dmp

Download
memory/2416-140-0x0000000000000000-mapping.dmp

Download
memory/2556-145-0x0000000001450000-0x000000000179A000-memory.dmp

Filesize
3.3MB

Download
memory/2556-144-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2556-141-0x0000000000000000-mapping.dmp

Download
memory/2556-146-0x0000000001300000-0x0000000001314000-memory.dmp

Filesize
80KB

Download
memory/2556-142-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2720-152-0x0000000001B70000-0x0000000001EBA000-memory.dmp

Filesize
3.3MB

Download
memory/2720-150-0x0000000000940000-0x0000000000A1C000-memory.dmp

Filesize
880KB

Download
memory/2720-151-0x00000000007F0000-0x000000000081F000-memory.dmp

Filesize
188KB

Download
memory/2720-148-0x0000000000000000-mapping.dmp

Download
memory/2720-153-0x00000000010A0000-0x0000000001133000-memory.dmp

Filesize
588KB

Download
memory/3148-147-0x0000000002720000-0x00000000027E1000-memory.dmp

Filesize
772KB

Download
memory/3148-154-0x0000000002B70000-0x0000000002CF0000-memory.dmp

Filesize
1.5MB

Download
memory/3488-155-0x0000000000000000-mapping.dmp

Download
memory/4240-158-0x0000000000000000-mapping.dmp

Download
memory/4240-159-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/4240-161-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/4240-162-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/4408-156-0x0000000000000000-mapping.dmp

Download
memory/5036-149-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads