formbook | b521c4ff6f3130816ab67c86fb383eeca6699d1527fd91efd67d7daba7daaa37

General

Target

Purchase_Order.exe
Size

461KB
MD5

566e113fe0ab328439baf0a1add92b53
SHA1

9c6fac6feb951361b0c5988214e380883acab4ef
SHA256

b521c4ff6f3130816ab67c86fb383eeca6699d1527fd91efd67d7daba7daaa37
SHA512

c1fa0906f02759535dd4b249f9ff6ea6f00710f5041c6302be5b4a36f89213cbeb87e39de1604607d405f132744d2a1f545267ce1b72e8d1a8ae97c8b53a91a7
SSDEEP

6144:bLbc1sIu0xsWhi180vAs5JVxTPHFlXEuZ6VWW6ViMwKi:rcg0uWhSImJVxjvHgWWzMd

Score

10^/10

formbook xloader i65a loader rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

i65a

Decoy

r00zzvD9uoqMkFT8XDSqPg==

iSMQDJ3Tyuj8KXflBw==

Gq+tYoFrGU/5B4gGNnzHNg==

wEwcynSwpynZKUFhqyIK

bw3PbrjowhAVJA==

TggEt9LuwhAVJA==

r0UqC6sxgcWN7vc=

0m+fwBgf0oyehByUtx51BsBkuj8=

dhtdWWyIhRatp2dpv8tPcJoQ

jTAw4/4TCwcXjpECXDSqPg==

aglx4nPPkGp/raeivGVOfzdbFIu4

+qXr4cAGtQJm7Mf6

sU2Dc4ySSKZJc2/L32pFRrq+NgA0Yi8=

E6ohOo2zadVgzLIfaWALaik=

wXwu0yo/KbNm7Mf6

EcoyojCJYKg1laCuBK+exkNbFIu4

bhZgFvj6yP+R4F+0/5S/oFMpAA==

rzlylCB1NIMabG2dzGQd

+5ngCKjwwhAVJA==

AMUtZrYh+0LPL/QyfSo=

Extracted

Family

xloader

Version

3.8

Campaign

i65a

Decoy

r00zzvD9uoqMkFT8XDSqPg==

iSMQDJ3Tyuj8KXflBw==

Gq+tYoFrGU/5B4gGNnzHNg==

wEwcynSwpynZKUFhqyIK

bw3PbrjowhAVJA==

TggEt9LuwhAVJA==

r0UqC6sxgcWN7vc=

0m+fwBgf0oyehByUtx51BsBkuj8=

dhtdWWyIhRatp2dpv8tPcJoQ

jTAw4/4TCwcXjpECXDSqPg==

aglx4nPPkGp/raeivGVOfzdbFIu4

+qXr4cAGtQJm7Mf6

sU2Dc4ySSKZJc2/L32pFRrq+NgA0Yi8=

E6ohOo2zadVgzLIfaWALaik=

wXwu0yo/KbNm7Mf6

EcoyojCJYKg1laCuBK+exkNbFIu4

bhZgFvj6yP+R4F+0/5S/oFMpAA==

rzlylCB1NIMabG2dzGQd

+5ngCKjwwhAVJA==

AMUtZrYh+0LPL/QyfSo=

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader

Suspicious use of SetThreadContext 3 IoCs

Processes:

Purchase_Order.exeaspnet_compiler.execolorcpl.exe

description	pid	process	target process
PID 5048 set thread context of 1696	5048	Purchase_Order.exe	aspnet_compiler.exe
PID 1696 set thread context of 2456	1696	aspnet_compiler.exe	Explorer.EXE
PID 4820 set thread context of 2456	4820	colorcpl.exe	Explorer.EXE

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

colorcpl.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	colorcpl.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

aspnet_compiler.execolorcpl.exe

pid	process
1696	aspnet_compiler.exe
1696	aspnet_compiler.exe
1696	aspnet_compiler.exe
1696	aspnet_compiler.exe
1696	aspnet_compiler.exe
1696	aspnet_compiler.exe
1696	aspnet_compiler.exe
1696	aspnet_compiler.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe
4820	colorcpl.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2456 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

aspnet_compiler.execolorcpl.exe

pid process

1696 aspnet_compiler.exe
1696 aspnet_compiler.exe
1696 aspnet_compiler.exe
4820 colorcpl.exe
4820 colorcpl.exe
4820 colorcpl.exe
4820 colorcpl.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

aspnet_compiler.execolorcpl.exe

description pid process

Token: SeDebugPrivilege 1696 aspnet_compiler.exe
Token: SeDebugPrivilege 4820 colorcpl.exe

pid	process
2456	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1696	aspnet_compiler.exe
Token: SeDebugPrivilege	4820	colorcpl.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

Purchase_Order.exeExplorer.EXEcolorcpl.exe

description	pid	process	target process
PID 5048 wrote to memory of 1696	5048	Purchase_Order.exe	aspnet_compiler.exe
PID 5048 wrote to memory of 1696	5048	Purchase_Order.exe	aspnet_compiler.exe
PID 5048 wrote to memory of 1696	5048	Purchase_Order.exe	aspnet_compiler.exe
PID 5048 wrote to memory of 1696	5048	Purchase_Order.exe	aspnet_compiler.exe
PID 5048 wrote to memory of 1696	5048	Purchase_Order.exe	aspnet_compiler.exe
PID 5048 wrote to memory of 1696	5048	Purchase_Order.exe	aspnet_compiler.exe
PID 2456 wrote to memory of 4820	2456	Explorer.EXE	colorcpl.exe
PID 2456 wrote to memory of 4820	2456	Explorer.EXE	colorcpl.exe
PID 2456 wrote to memory of 4820	2456	Explorer.EXE	colorcpl.exe
PID 4820 wrote to memory of 3944	4820	colorcpl.exe	Firefox.exe
PID 4820 wrote to memory of 3944	4820	colorcpl.exe	Firefox.exe
PID 4820 wrote to memory of 3944	4820	colorcpl.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2456

C:\Users\Admin\AppData\Local\Temp\Purchase_Order.exe
"C:\Users\Admin\AppData\Local\Temp\Purchase_Order.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5048

C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1696

C:\Windows\SysWOW64\colorcpl.exe
"C:\Windows\SysWOW64\colorcpl.exe"
2⤵
- Suspicious use of SetThreadContext
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4820

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:3944

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1696-133-0x0000000000000000-mapping.dmp

Download
memory/1696-134-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1696-137-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/1696-136-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1696-139-0x0000000001880000-0x0000000001BCA000-memory.dmp

Filesize
3.3MB

Download
memory/1696-140-0x00000000012A0000-0x00000000012B0000-memory.dmp

Filesize
64KB

Download
memory/1696-143-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1696-144-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/2456-149-0x00000000028F0000-0x00000000029D0000-memory.dmp

Filesize
896KB

Download
memory/2456-141-0x0000000008470000-0x00000000085F5000-memory.dmp

Filesize
1.5MB

Download
memory/2456-151-0x00000000028F0000-0x00000000029D0000-memory.dmp

Filesize
896KB

Download
memory/4820-142-0x0000000000000000-mapping.dmp

Download
memory/4820-145-0x0000000000E50000-0x0000000000E69000-memory.dmp

Filesize
100KB

Download
memory/4820-147-0x0000000002F90000-0x00000000032DA000-memory.dmp

Filesize
3.3MB

Download
memory/4820-146-0x0000000000DB0000-0x0000000000DDD000-memory.dmp

Filesize
180KB

Download
memory/4820-148-0x0000000002DC0000-0x0000000002E4F000-memory.dmp

Filesize
572KB

Download
memory/4820-150-0x0000000000DB0000-0x0000000000DDD000-memory.dmp

Filesize
180KB

Download
memory/5048-132-0x0000000000990000-0x0000000000A00000-memory.dmp

Filesize
448KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads