formbook | dcc8a16c411d371bf110f3d0bfe6a4224a53810844ef1bc02d3f89f2e02e7c0b

General

Target

tmp.exe
Size

576KB
MD5

4218b9cf266916690af26776acf29627
SHA1

d69e2af929a0d406d7eea8316e9747db1d4a7ff0
SHA256

dcc8a16c411d371bf110f3d0bfe6a4224a53810844ef1bc02d3f89f2e02e7c0b
SHA512

fad04a07efa85b91c64022f0b9b1fefdc80a59cd9127e6c1d750f803e2377c71793f20add0532ab2ed595cc9a98a8c9d522c6c42bc6fc07cfdfd2eddf9954d05
SSDEEP

12288:xWO+lpbKbfO7FoxgcSkgyZyfOL5eJxnS4ta5NG3WlViKY:xWnbKzxgcSkgyZeO0TtWN+

Score

10^/10

formbook xloader dcn0 loader rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

dcn0

Decoy

ZVx68vDtAMBCwg==

oBMBvsNORkM/O/ox

Ff9pISWkm6eG4lByIspp

c2T42c6CIIF6B8xTxm9XzpVw

bvjhxRbnAC183w==

0lTttSNG4HUDNflyIspp

hPXFlstqiHA/O/ox

WLR+MeerxZ0cNn1ja+IQAYo=

IHRn4xXOVKi477zarG+ObSy7YJA=

Xhf3e+tdAC183w==

Xk0ZAezv2rWH

kngo+vBeSRN7AszNwam3Osmguuqc0MoC

a2Qp7a+E8fSw7LDjpnqEKjsRZA==

3zjy4E7+QM48wg==

YcCmqT3OUNAigVott2pBKiy7YJA=

4+SMeX1juat/5cZ1AZihcyy7YJA=

/+m7sro0OBTl3TMpCw==

i2ctEfe4//a64yklMsgS2J90

+loZ2QKGX0UWgpvErMs=

b9BNCnJWQJS8IfsR0uR3bCy7YJA=

Extracted

Family

xloader

Version

3.�E

Campaign

dcn0

Decoy

ZVx68vDtAMBCwg==

oBMBvsNORkM/O/ox

Ff9pISWkm6eG4lByIspp

c2T42c6CIIF6B8xTxm9XzpVw

bvjhxRbnAC183w==

0lTttSNG4HUDNflyIspp

hPXFlstqiHA/O/ox

WLR+MeerxZ0cNn1ja+IQAYo=

IHRn4xXOVKi477zarG+ObSy7YJA=

Xhf3e+tdAC183w==

Xk0ZAezv2rWH

kngo+vBeSRN7AszNwam3Osmguuqc0MoC

a2Qp7a+E8fSw7LDjpnqEKjsRZA==

3zjy4E7+QM48wg==

YcCmqT3OUNAigVott2pBKiy7YJA=

4+SMeX1juat/5cZ1AZihcyy7YJA=

/+m7sro0OBTl3TMpCw==

i2ctEfe4//a64yklMsgS2J90

+loZ2QKGX0UWgpvErMs=

b9BNCnJWQJS8IfsR0uR3bCy7YJA=

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
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:

tmp.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Control Panel\International\Geo\Nation tmp.exe
Loads dropped DLL 1 IoCs

Processes:

wininit.exe

pid process

1068 wininit.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Control Panel\International\Geo\Nation	tmp.exe

pid	process
1068	wininit.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

tmp.exetmp.exewininit.exe

description	pid	process	target process
PID 544 set thread context of 1440	544	tmp.exe	tmp.exe
PID 1440 set thread context of 1352	1440	tmp.exe	Explorer.EXE
PID 1068 set thread context of 1352	1068	wininit.exe	Explorer.EXE

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

wininit.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-999675638-2867687379-27515722-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	wininit.exe

Suspicious behavior: EnumeratesProcesses 15 IoCs

Processes:

tmp.exewininit.exe

pid	process
1440	tmp.exe
1440	tmp.exe
1440	tmp.exe
1440	tmp.exe
1068	wininit.exe
1068	wininit.exe
1068	wininit.exe
1068	wininit.exe
1068	wininit.exe
1068	wininit.exe
1068	wininit.exe
1068	wininit.exe
1068	wininit.exe
1068	wininit.exe
1068	wininit.exe

Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

tmp.exewininit.exe

pid process

1440 tmp.exe
1440 tmp.exe
1440 tmp.exe
1068 wininit.exe
1068 wininit.exe
1068 wininit.exe
1068 wininit.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

tmp.exewininit.exe

description pid process

Token: SeDebugPrivilege 1440 tmp.exe
Token: SeDebugPrivilege 1068 wininit.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1352 Explorer.EXE
1352 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1352 Explorer.EXE
1352 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1440	tmp.exe
Token: SeDebugPrivilege	1068	wininit.exe

pid	process
1352	Explorer.EXE
1352	Explorer.EXE

pid	process
1352	Explorer.EXE
1352	Explorer.EXE

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

tmp.exeExplorer.EXEwininit.exe

description	pid	process	target process
PID 544 wrote to memory of 1440	544	tmp.exe	tmp.exe
PID 544 wrote to memory of 1440	544	tmp.exe	tmp.exe
PID 544 wrote to memory of 1440	544	tmp.exe	tmp.exe
PID 544 wrote to memory of 1440	544	tmp.exe	tmp.exe
PID 544 wrote to memory of 1440	544	tmp.exe	tmp.exe
PID 544 wrote to memory of 1440	544	tmp.exe	tmp.exe
PID 544 wrote to memory of 1440	544	tmp.exe	tmp.exe
PID 1352 wrote to memory of 1068	1352	Explorer.EXE	wininit.exe
PID 1352 wrote to memory of 1068	1352	Explorer.EXE	wininit.exe
PID 1352 wrote to memory of 1068	1352	Explorer.EXE	wininit.exe
PID 1352 wrote to memory of 1068	1352	Explorer.EXE	wininit.exe
PID 1068 wrote to memory of 1280	1068	wininit.exe	Firefox.exe
PID 1068 wrote to memory of 1280	1068	wininit.exe	Firefox.exe
PID 1068 wrote to memory of 1280	1068	wininit.exe	Firefox.exe
PID 1068 wrote to memory of 1280	1068	wininit.exe	Firefox.exe
PID 1068 wrote to memory of 1280	1068	wininit.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:1352
- C:\Users\Admin\AppData\Local\Temp\tmp.exe
  "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:544
- - C:\Users\Admin\AppData\Local\Temp\tmp.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
    3⤵
    - Checks computer location settings
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1440
- C:\Windows\SysWOW64\wininit.exe
  "C:\Windows\SysWOW64\wininit.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:1068
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:1280

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

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

\Users\Admin\AppData\Local\Temp\sqlite3.dll

Filesize
949KB

MD5
38a3e021eb32c9976adaf0b3372080fc

SHA1
68e02803c646be21007d90bec841c176b82211fd

SHA256
8cde0275d60da0d11954f73c7c8862cfc4b306f61bb8b1ce14abe4a193af2652

SHA512
b886cc112f2750e7300b66f7242850659fa49fdc97f75aed376cb9f5440875f303a143bf8b51068ec42674f1ebe1dfcc40534f3a7aed3cc4d20f9274b9a66d18

Download Submit
memory/544-55-0x0000000075A91000-0x0000000075A93000-memory.dmp

Filesize
8KB

Download
memory/544-56-0x0000000000390000-0x00000000003A6000-memory.dmp

Filesize
88KB

Download
memory/544-57-0x00000000003B0000-0x00000000003BE000-memory.dmp

Filesize
56KB

Download
memory/544-58-0x0000000004DE0000-0x0000000004E50000-memory.dmp

Filesize
448KB

Download
memory/544-59-0x0000000000B40000-0x0000000000B74000-memory.dmp

Filesize
208KB

Download
memory/544-54-0x0000000000BE0000-0x0000000000C76000-memory.dmp

Filesize
600KB

Download
memory/1068-74-0x00000000005E0000-0x00000000005FA000-memory.dmp

Filesize
104KB

Download
memory/1068-79-0x0000000000080000-0x00000000000AD000-memory.dmp

Filesize
180KB

Download
memory/1068-77-0x0000000001DB0000-0x0000000001E3F000-memory.dmp

Filesize
572KB

Download
memory/1068-75-0x0000000000080000-0x00000000000AD000-memory.dmp

Filesize
180KB

Download
memory/1068-76-0x0000000001EB0000-0x00000000021B3000-memory.dmp

Filesize
3.0MB

Download
memory/1068-73-0x0000000000000000-mapping.dmp

Download
memory/1352-80-0x0000000003F80000-0x0000000004056000-memory.dmp

Filesize
856KB

Download
memory/1352-78-0x0000000003F80000-0x0000000004056000-memory.dmp

Filesize
856KB

Download
memory/1352-72-0x0000000004D20000-0x0000000004E9E000-memory.dmp

Filesize
1.5MB

Download
memory/1440-60-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1440-71-0x0000000000130000-0x0000000000140000-memory.dmp

Filesize
64KB

Download
memory/1440-70-0x0000000000422000-0x0000000000424000-memory.dmp

Filesize
8KB

Download
memory/1440-69-0x00000000008D0000-0x0000000000BD3000-memory.dmp

Filesize
3.0MB

Download
memory/1440-68-0x0000000000401000-0x000000000042E000-memory.dmp

Filesize
180KB

Download
memory/1440-66-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1440-67-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1440-63-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1440-64-0x00000000004012B0-mapping.dmp

Download
memory/1440-61-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads