formbook | 5463db9a5e180df75642646615cfd6ff7598b9846718c2224f19c878ee01dc00

General

Target

Purchase_Order.exe
Size

295KB
MD5

4e256d3d4ddbcc9c1d2cfa57034a0d52
SHA1

60ec184a1ab03af29341f093791e210202814f1c
SHA256

5463db9a5e180df75642646615cfd6ff7598b9846718c2224f19c878ee01dc00
SHA512

2e455bd66870778fc511515d3db4ae3b14d16374436cc4f6b70c182b42f2c70f977b9976194c1fb392f0ab28ebc4b7fd3ecec87fba279a541c6be396425fd79e
SSDEEP

6144:uj5zFdfKy5i+xc+tR5VwWmKH0LYlA8yjXeIIzls3GEioll+8zE7ev:efKy5p9tBmKUL0uhIoGEiQltEi

Score

10^/10

formbook i65a 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=

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Loads dropped DLL 1 IoCs

Processes:

cmmon32.exe

pid process

1756 cmmon32.exe

pid	process
1756	cmmon32.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

Purchase_Order.execvtres.execmmon32.exe

description	pid	process	target process
PID 1328 set thread context of 1352	1328	Purchase_Order.exe	cvtres.exe
PID 1352 set thread context of 1200	1352	cvtres.exe	Explorer.EXE
PID 1756 set thread context of 1200	1756	cmmon32.exe	Explorer.EXE

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

cmmon32.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-4063495947-34355257-727531523-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	cmmon32.exe

Suspicious behavior: EnumeratesProcesses 26 IoCs

Processes:

cvtres.execmmon32.exe

pid	process
1352	cvtres.exe
1352	cvtres.exe
1352	cvtres.exe
1352	cvtres.exe
1756	cmmon32.exe
1756	cmmon32.exe
1756	cmmon32.exe
1756	cmmon32.exe
1756	cmmon32.exe
1756	cmmon32.exe
1756	cmmon32.exe
1756	cmmon32.exe
1756	cmmon32.exe
1756	cmmon32.exe
1756	cmmon32.exe
1756	cmmon32.exe
1756	cmmon32.exe
1756	cmmon32.exe
1756	cmmon32.exe
1756	cmmon32.exe
1756	cmmon32.exe
1756	cmmon32.exe
1756	cmmon32.exe
1756	cmmon32.exe
1756	cmmon32.exe
1756	cmmon32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1200 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

cvtres.execmmon32.exe

pid process

1352 cvtres.exe
1352 cvtres.exe
1352 cvtres.exe
1756 cmmon32.exe
1756 cmmon32.exe
1756 cmmon32.exe
1756 cmmon32.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

cvtres.execmmon32.exe

description pid process

Token: SeDebugPrivilege 1352 cvtres.exe
Token: SeDebugPrivilege 1756 cmmon32.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1200 Explorer.EXE
1200 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1200 Explorer.EXE
1200 Explorer.EXE

pid	process
1200	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1352	cvtres.exe
Token: SeDebugPrivilege	1756	cmmon32.exe

pid	process
1200	Explorer.EXE
1200	Explorer.EXE

pid	process
1200	Explorer.EXE
1200	Explorer.EXE

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

Purchase_Order.exeExplorer.EXEcmmon32.exe

description	pid	process	target process
PID 1328 wrote to memory of 1352	1328	Purchase_Order.exe	cvtres.exe
PID 1328 wrote to memory of 1352	1328	Purchase_Order.exe	cvtres.exe
PID 1328 wrote to memory of 1352	1328	Purchase_Order.exe	cvtres.exe
PID 1328 wrote to memory of 1352	1328	Purchase_Order.exe	cvtres.exe
PID 1328 wrote to memory of 1352	1328	Purchase_Order.exe	cvtres.exe
PID 1328 wrote to memory of 1352	1328	Purchase_Order.exe	cvtres.exe
PID 1328 wrote to memory of 1352	1328	Purchase_Order.exe	cvtres.exe
PID 1200 wrote to memory of 1756	1200	Explorer.EXE	cmmon32.exe
PID 1200 wrote to memory of 1756	1200	Explorer.EXE	cmmon32.exe
PID 1200 wrote to memory of 1756	1200	Explorer.EXE	cmmon32.exe
PID 1200 wrote to memory of 1756	1200	Explorer.EXE	cmmon32.exe
PID 1756 wrote to memory of 1044	1756	cmmon32.exe	Firefox.exe
PID 1756 wrote to memory of 1044	1756	cmmon32.exe	Firefox.exe
PID 1756 wrote to memory of 1044	1756	cmmon32.exe	Firefox.exe
PID 1756 wrote to memory of 1044	1756	cmmon32.exe	Firefox.exe
PID 1756 wrote to memory of 1044	1756	cmmon32.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1200

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:1328

C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1352

C:\Windows\SysWOW64\cmmon32.exe
"C:\Windows\SysWOW64\cmmon32.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1756

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:1044

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

\Users\Admin\AppData\Local\Temp\sqlite3.dll
Filesize
902KB

MD5
50338cc1fa2582fa0cad8a8fa7ceb4d2

SHA1
ae697ef05b6bec38fb79ff4512ae50a303dcdbce

SHA256
0815a80fa73286d8c6bf0982471c61833821d9f10a20612deaa134562e7a3cda

SHA512
02a006e26b1d08cb53a4b3dab23ce6a6756a7275f8b3ef00b7412f10cff75411685a3542c5dc330dad7c9f7ff26288a2e94254d00bf53c1394e7252e000c9a61

Download Submit
memory/1200-78-0x00000000040C0000-0x0000000004193000-memory.dmp

Filesize
844KB

Download
memory/1200-76-0x00000000040C0000-0x0000000004193000-memory.dmp

Filesize
844KB

Download
memory/1200-70-0x0000000007350000-0x00000000074CA000-memory.dmp

Filesize
1.5MB

Download
memory/1328-54-0x00000000008C0000-0x000000000090E000-memory.dmp

Filesize
312KB

Download
memory/1328-55-0x0000000000200000-0x0000000000208000-memory.dmp

Filesize
32KB

Download
memory/1328-56-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/1328-57-0x00000000003B0000-0x00000000003BC000-memory.dmp

Filesize
48KB

Download
memory/1328-58-0x00000000003C0000-0x00000000003C8000-memory.dmp

Filesize
32KB

Download
memory/1352-68-0x00000000008F0000-0x0000000000BF3000-memory.dmp

Filesize
3.0MB

Download
memory/1352-62-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1352-67-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/1352-65-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1352-69-0x0000000000100000-0x0000000000110000-memory.dmp

Filesize
64KB

Download
memory/1352-63-0x00000000004012B0-mapping.dmp

Download
memory/1352-59-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1352-60-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1352-66-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1756-74-0x0000000002030000-0x0000000002333000-memory.dmp

Filesize
3.0MB

Download
memory/1756-73-0x0000000000080000-0x00000000000AD000-memory.dmp

Filesize
180KB

Download
memory/1756-75-0x0000000001D60000-0x0000000001DEF000-memory.dmp

Filesize
572KB

Download
memory/1756-77-0x0000000075FE1000-0x0000000075FE3000-memory.dmp

Filesize
8KB

Download
memory/1756-72-0x0000000000440000-0x000000000044D000-memory.dmp

Filesize
52KB

Download
memory/1756-71-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads