formbook | bc07f5f2b53ecfe5def046099a57fb15658babfc18988d7b692c059fab32c249

General

Target

7.exe
Size

217KB
MD5

3347779841d3da795c21302943eb3336
SHA1

c06baa6711abdca45ef214fb071321de147a5b3f
SHA256

bc07f5f2b53ecfe5def046099a57fb15658babfc18988d7b692c059fab32c249
SHA512

6b9a358a6a2f3e1ed3811fafc0f730e47364cc6fd4fd77d139a72292e80e1985d0e17519ce24c6607e95c58651a2cefcc1d57c8b6ca49cb03b1f4ffb7ec896c4
SSDEEP

6144:LEubXAxE9UJmPspuZMTexvFL6is5O+9R:LE8wxZIPlOTeFLHaP9

Score

10^/10

formbook ermr persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

ermr

Decoy

ErOK6LFCgNIAlQmH54oaYOL/CN29Z78=

qNSdDhu/PT/1fgafDagiCSZH1SY=

wLpPOAkYS8EABl3pHGc4hNT/Q1sHBrU=

jSxRvptHkeTGl7PT0SEmaZmjqzanuA==

b91oL+2wCcpyhnd6yvF6Pg==

mr81yp1/qqZX

hy7Xsz/PU/LWHMcGL4UYJx9n3A==

KlwrHt1gouPaXaWhoQ==

ng8M320IRJL9Ptw=

8GQbOXuaWxvKnNM=

XndOL7E5sNpVUNty4d/a

rryPBBC8PybYb+2h2MF3FHGL

kEoeyERSVCYO0g==

5/P+SBDby5hO

1fYXc30/h9W7iO17

34X+YKR+wRFE

8ir/X2MlVByh5lQ1ow8=

u9ikm2UMZ7J7hpCYow==

FLI+c3clp1BNDjVAfvC2Dnw=

t21Erq8/r09wAzAJTAH3Ng==

Signatures

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

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

netsh.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	netsh.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\IJDDPLD0VFZ = "C:\\Program Files (x86)\\Dnnux\\gdiefg8.exe"	netsh.exe

Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.

Query Registry
T1012

System Information Discovery
T1082

Processes:

7.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Control Panel\International\Geo\Nation 7.exe
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1176 cmd.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Control Panel\International\Geo\Nation	7.exe

pid	process
1176	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

7.exe7.exenetsh.exe

description	pid	process	target process
PID 1488 set thread context of 2004	1488	7.exe	7.exe
PID 2004 set thread context of 1284	2004	7.exe	Explorer.EXE
PID 1552 set thread context of 1284	1552	netsh.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

netsh.exe

description ioc process

File opened for modification C:\Program Files (x86)\Dnnux\gdiefg8.exe netsh.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Dnnux\gdiefg8.exe	netsh.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

netsh.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-2292972927-2705560509-2768824231-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	netsh.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

Processes:

7.exenetsh.exe

pid	process
2004	7.exe
2004	7.exe
2004	7.exe
2004	7.exe
1552	netsh.exe
1552	netsh.exe
1552	netsh.exe
1552	netsh.exe
1552	netsh.exe
1552	netsh.exe
1552	netsh.exe
1552	netsh.exe
1552	netsh.exe
1552	netsh.exe
1552	netsh.exe
1552	netsh.exe
1552	netsh.exe
1552	netsh.exe
1552	netsh.exe
1552	netsh.exe

Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

7.exenetsh.exe

pid process

2004 7.exe
2004 7.exe
2004 7.exe
1552 netsh.exe
1552 netsh.exe
1552 netsh.exe
1552 netsh.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

7.exenetsh.exe

description pid process

Token: SeDebugPrivilege 2004 7.exe
Token: SeDebugPrivilege 1552 netsh.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1284 Explorer.EXE
1284 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	2004	7.exe
Token: SeDebugPrivilege	1552	netsh.exe

Suspicious use of SendNotifyMessage 13 IoCs

Processes:

Explorer.EXE

pid	process
1284	Explorer.EXE
1284	Explorer.EXE
1284	Explorer.EXE
1284	Explorer.EXE
1284	Explorer.EXE
1284	Explorer.EXE
1284	Explorer.EXE
1284	Explorer.EXE
1284	Explorer.EXE
1284	Explorer.EXE
1284	Explorer.EXE
1284	Explorer.EXE
1284	Explorer.EXE

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

7.exeExplorer.EXEnetsh.exe

description	pid	process	target process
PID 1488 wrote to memory of 2004	1488	7.exe	7.exe
PID 1488 wrote to memory of 2004	1488	7.exe	7.exe
PID 1488 wrote to memory of 2004	1488	7.exe	7.exe
PID 1488 wrote to memory of 2004	1488	7.exe	7.exe
PID 1488 wrote to memory of 2004	1488	7.exe	7.exe
PID 1488 wrote to memory of 2004	1488	7.exe	7.exe
PID 1488 wrote to memory of 2004	1488	7.exe	7.exe
PID 1488 wrote to memory of 2004	1488	7.exe	7.exe
PID 1488 wrote to memory of 2004	1488	7.exe	7.exe
PID 1488 wrote to memory of 2004	1488	7.exe	7.exe
PID 1284 wrote to memory of 1552	1284	Explorer.EXE	netsh.exe
PID 1284 wrote to memory of 1552	1284	Explorer.EXE	netsh.exe
PID 1284 wrote to memory of 1552	1284	Explorer.EXE	netsh.exe
PID 1284 wrote to memory of 1552	1284	Explorer.EXE	netsh.exe
PID 1552 wrote to memory of 1176	1552	netsh.exe	cmd.exe
PID 1552 wrote to memory of 1176	1552	netsh.exe	cmd.exe
PID 1552 wrote to memory of 1176	1552	netsh.exe	cmd.exe
PID 1552 wrote to memory of 1176	1552	netsh.exe	cmd.exe
PID 1552 wrote to memory of 592	1552	netsh.exe	Firefox.exe
PID 1552 wrote to memory of 592	1552	netsh.exe	Firefox.exe
PID 1552 wrote to memory of 592	1552	netsh.exe	Firefox.exe
PID 1552 wrote to memory of 592	1552	netsh.exe	Firefox.exe
PID 1552 wrote to memory of 592	1552	netsh.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1284

C:\Users\Admin\AppData\Local\Temp\7.exe
"C:\Users\Admin\AppData\Local\Temp\7.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1488

C:\Users\Admin\AppData\Local\Temp\7.exe
"C:\Users\Admin\AppData\Local\Temp\7.exe"
3⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:2004

C:\Windows\SysWOW64\netsh.exe
"C:\Windows\SysWOW64\netsh.exe"
2⤵
- Adds policy Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1552

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\7.exe"
3⤵
- Deletes itself
PID:1176

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:592

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1176-67-0x0000000000000000-mapping.dmp

Download
memory/1284-75-0x0000000004EA0000-0x0000000004F85000-memory.dmp

Filesize
916KB

Download
memory/1284-72-0x0000000004EA0000-0x0000000004F85000-memory.dmp

Filesize
916KB

Download
memory/1284-65-0x0000000004B50000-0x0000000004C8C000-memory.dmp

Filesize
1.2MB

Download
memory/1488-55-0x0000000075DF1000-0x0000000075DF3000-memory.dmp

Filesize
8KB

Download
memory/1488-54-0x0000000000E50000-0x0000000000E8C000-memory.dmp

Filesize
240KB

Download
memory/1552-68-0x0000000000E10000-0x0000000000E2B000-memory.dmp

Filesize
108KB

Download
memory/1552-73-0x0000000000080000-0x00000000000AD000-memory.dmp

Filesize
180KB

Download
memory/1552-71-0x00000000003E0000-0x0000000000470000-memory.dmp

Filesize
576KB

Download
memory/1552-70-0x0000000002230000-0x0000000002533000-memory.dmp

Filesize
3.0MB

Download
memory/1552-69-0x0000000000080000-0x00000000000AD000-memory.dmp

Filesize
180KB

Download
memory/1552-66-0x0000000000000000-mapping.dmp

Download
memory/2004-59-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/2004-64-0x00000000002A0000-0x00000000002B1000-memory.dmp

Filesize
68KB

Download
memory/2004-63-0x0000000000920000-0x0000000000C23000-memory.dmp

Filesize
3.0MB

Download
memory/2004-62-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/2004-60-0x0000000000420330-mapping.dmp

Download
memory/2004-57-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/2004-56-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads