formbook | a013267b2dae410a6e166f9faaceebef0324d4b9036531856f10275f30ce41b8

Analysis

max time kernel
153s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
20/06/2022, 10:48

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General

Target
Purchase Order.exe
Size 510KB
Sample220620-mv4e3sceam
SHA256 a013267b2dae410a6e166f9faaceebef0324d4b9036531856f10275f30ce41b8
MD5 c0d6aba1944e05446c8589d0add13e16
SHA1 804c051f00fecabab909b845ae9def8231572967
SHA512 50fb56803be91339619193cf621bfda489eb58d5757c64674a2b7fb95abab2916be4d90ddf32da13ee299ba0d272713a0898828792667021f085accc086770dc
MD5 SHA1 SHA512

Score

10^/10

formbook xloader utg6 loader persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

xloader

Version

Campaign

utg6

Decoy

HH9H3kXZHIk0wrXfJq4s5Q==
dJojMwcUlkY3/12Ghl4=
M97sg6hotTOvNY1D
6o+YPIQARtqPHA4sKdmWYke8FA==
Pt71lrWLDblvQJ9A
K0fU6/BseTox+kSSmYQw5NtN00EV7tXr
4sohLE0CeRrTl+2X03jpYke8FA==
zrcKky6asFs+yUeWmQ==
VodJdmzh+A==
gobc7RDsOEAw9A==
xEYVn8uhKPPkPWuJo43QVuWhzgLM
Fw9Ybr9DXRz9jnd/jXvyYke8FA==
VCyIpJ9WjQS9AUudt5mWvMjCzE4=
0a6vT2kQTs1+SYepk6NO
TGCqvhzKUAj3RWvPX/5G
h4bU7i39XUJV4szsQt9e/A==
vwqYIIH/DLW3bpeqo3HpYke8FA==
vxbocZI8hKNcZb9Moli2Yv0dHg==
7JCQHUYhm19m7lrqPADuDrOhzgLM
gJjwBFXqM6BPYIxcaVY=
WYIgwTrqZQGsZbXL+PhR
KgZciArIHaFgamqJiWNdf06wJKXE
wZTaBoYqaPCuscppu3S2YTPnXIwV7tXr
NHsMkedknR+6CS+x2N5XPQWw
S/TxBpFMlwC28DmHhDhu+LOhzgLM
T5koS4H1Nch/iJC+6Yo3TuH+CEkA/ts=
1rvxCZROuEe9DhJch18=
KaxpFKG2wPS9+VbBPUn1n0S4
JhBkc8xMWSMxNkKOy3u0w4E=
MHUGjeB2vkgOxwKUJq4s5Q==
qGZvI3kPEcKCR4nfJq4s5Q==
oIrHwQHPIaNi6XsbeDTt7Q==
yc4MEk0V3skwRjs=
mEBH0fncP79+vdfn+ObrEt8TEEkA/ts=
dZoswFAcrnokNl+MnnHsYke8FA==
5OkmQrlCTQm36+lX
ms5RddVuqiL1PmrPX/5G
47fByGIP4oh1
Tuvnd5paqRveLIxcaVY=
KQpN+Bfe8JpFTzk=
3Q+uQqhS1oBGyUeWmQ==
I8zS5FwEVuirvBWjzHu0w4E=
Xsnefbe/NLR7
ZcmcQrdFXiYYX6ZKpGpdgzcxDEkA/ts=
qQbDVdWUolIZ7gtI
r/B9q+deOEAw9A==
a+jHZXcxhQbB+UWNiEIwPtXwJVjT4NQ=
xfd2BJxuFckwRjs=
gjRJa9peOEAw9A==
AHBF3Ta66MkwRjs=
0DQPpwW1BYNNyUeWmQ==
MjRyieFfoHPB/azPX/5G
h5rUfrs2eQhvQJ9A
6JyirxST08DN2BccXWKRyMjCzE4=
/jO+R7tYrIt4/GTPX/5G
LGzpEm8Yj1tf4OxAkjhq3XNkSFEV7tXr
PNTt91DJB5tSWoxcaVY=
BHxU+jEHtja36+lX
AVnS6zey83kcKTuMzHu0w4E=
N2LwByXjYiwR3hlqnSVW4J2Z3xjV
21Qhs8VuzJ0NGCI=
CXl2DSDgqV1QkgZelaFO
BzbD3QrpOEAw9A==
oKTh9lvw8JpFTzk=
propagandefilms.com

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
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
suricata

Xloader Payload 4 IoCs

rat

resource	yara_rule
behavioral2/memory/3540-136-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral2/memory/3540-142-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral2/memory/2812-145-0x0000000001230000-0x000000000125C000-memory.dmp	xloader
behavioral2/memory/2812-149-0x0000000001230000-0x000000000125C000-memory.dmp	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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Control Panel\International\Geo\Nation	Purchase Order.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\Machine\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	ipconfig.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\PXXHZLXPQ8 = "C:\\Program Files (x86)\\Umjw\\configprhtej.exe"	ipconfig.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4628 set thread context of 3540	4628	Purchase Order.exe	91
PID 3540 set thread context of 2084	3540	Purchase Order.exe	41
PID 2812 set thread context of 2084	2812	ipconfig.exe	41

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Umjw\configprhtej.exe	ipconfig.exe

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command-Line Interface

T1059

pid	Process
2812	ipconfig.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	ipconfig.exe

Suspicious behavior: EnumeratesProcesses 36 IoCs

pid	Process
3540	Purchase Order.exe
3540	Purchase Order.exe
3540	Purchase Order.exe
3540	Purchase Order.exe
2812	ipconfig.exe
2812	ipconfig.exe
2812	ipconfig.exe
2812	ipconfig.exe
2812	ipconfig.exe
2812	ipconfig.exe
2812	ipconfig.exe
2812	ipconfig.exe
2812	ipconfig.exe
2812	ipconfig.exe
2812	ipconfig.exe
2812	ipconfig.exe
2812	ipconfig.exe
2812	ipconfig.exe
2812	ipconfig.exe
2812	ipconfig.exe
2812	ipconfig.exe
2812	ipconfig.exe
2812	ipconfig.exe
2812	ipconfig.exe
2812	ipconfig.exe
2812	ipconfig.exe
2812	ipconfig.exe
2812	ipconfig.exe
2812	ipconfig.exe
2812	ipconfig.exe
2812	ipconfig.exe
2812	ipconfig.exe
2812	ipconfig.exe
2812	ipconfig.exe
2812	ipconfig.exe
2812	ipconfig.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2084	Explorer.EXE

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
3540	Purchase Order.exe
3540	Purchase Order.exe
3540	Purchase Order.exe
2812	ipconfig.exe
2812	ipconfig.exe
2812	ipconfig.exe
2812	ipconfig.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3540	Purchase Order.exe
Token: SeDebugPrivilege	2812	ipconfig.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4628 wrote to memory of 3540	4628	Purchase Order.exe	91
PID 4628 wrote to memory of 3540	4628	Purchase Order.exe	91
PID 4628 wrote to memory of 3540	4628	Purchase Order.exe	91
PID 4628 wrote to memory of 3540	4628	Purchase Order.exe	91
PID 4628 wrote to memory of 3540	4628	Purchase Order.exe	91
PID 4628 wrote to memory of 3540	4628	Purchase Order.exe	91
PID 2084 wrote to memory of 2812	2084	Explorer.EXE	92
PID 2084 wrote to memory of 2812	2084	Explorer.EXE	92
PID 2084 wrote to memory of 2812	2084	Explorer.EXE	92
PID 2812 wrote to memory of 1560	2812	ipconfig.exe	93
PID 2812 wrote to memory of 1560	2812	ipconfig.exe	93
PID 2812 wrote to memory of 1560	2812	ipconfig.exe	93
PID 2812 wrote to memory of 1216	2812	ipconfig.exe	95
PID 2812 wrote to memory of 1216	2812	ipconfig.exe	95
PID 2812 wrote to memory of 1216	2812	ipconfig.exe	95
PID 2812 wrote to memory of 2024	2812	ipconfig.exe	97
PID 2812 wrote to memory of 2024	2812	ipconfig.exe	97
PID 2812 wrote to memory of 2024	2812	ipconfig.exe	97
PID 2812 wrote to memory of 488	2812	ipconfig.exe	99
PID 2812 wrote to memory of 488	2812	ipconfig.exe	99
PID 2812 wrote to memory of 488	2812	ipconfig.exe	99

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2084
- 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:4628
- - C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe
    "C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"
    3⤵
    - Checks computer location settings
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:3540
- C:\Windows\SysWOW64\ipconfig.exe
  "C:\Windows\SysWOW64\ipconfig.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Drops file in Program Files directory
  - Gathers network information
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2812
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"
    3⤵
    PID:1560
- - C:\Windows\SysWOW64\cmd.exe
    /c copy "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
    3⤵
    PID:1216
- - C:\Windows\SysWOW64\cmd.exe
    /c copy "C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
    3⤵
    PID:2024
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:488

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Command-Line Interface

T1059

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

DB1

Path C:\Users\Admin\AppData\Local\Temp\DB1
Size 40KB
SHA256 b281ce54125d4250a80f48fcc02a8eea53f2c35c3b726e2512c3d493da0013bf
MD5 b608d407fc15adea97c26936bc6f03f6
SHA1 953e7420801c76393902c0d6bb56148947e41571
SHA512 cc96ddf4bf90d6aaa9d86803cb2aa30cd8e9b295aee1bd5544b88aeab63dc60bb1d4641e846c9771bab51aabbfbcd984c6d3ee83b96f5b65d09c0841d464b9e4
SSDEEP 48:2j3WBA+IIYICVEq8MX0D0HSFlNUK6lGNxGt7KLk8s8LKvUf9KVyJ7hU:u2FCn8MZyFlulGNxGt7KLyeymw
MD5 SHA1 SHA512 SSDEEP

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DB1

Path C:\Users\Admin\AppData\Local\Temp\DB1
Size 48KB
SHA256 c9fd7be4579e4aa942e8c2b44ab10115fa6c2fe6afd0c584865413d9d53f3b2a
MD5 349e6eb110e34a08924d92f6b334801d
SHA1 bdfb289daff51890cc71697b6322aa4b35ec9169
SHA512 2a635b815a5e117ea181ee79305ee1baf591459427acc5210d8c6c7e447be3513ead871c605eb3d32e4ab4111b2a335f26520d0ef8c1245a4af44e1faec44574
SSDEEP 96:uRMKLyeymwxCn8MZyFlSynlbiXyKwt8hG:uRkxGOXnlbibhG
MD5 SHA1 SHA512 SSDEEP

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memory/2084-140-0x00000000084F0000-0x000000000868D000-memory.dmp

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memory/2084-150-0x0000000008690000-0x00000000087CC000-memory.dmp

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memory/2084-148-0x0000000008690000-0x00000000087CC000-memory.dmp

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memory/2812-149-0x0000000001230000-0x000000000125C000-memory.dmp

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memory/2812-144-0x0000000000280000-0x000000000028B000-memory.dmp

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memory/2812-147-0x0000000001890000-0x0000000001920000-memory.dmp

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memory/2812-146-0x0000000001AC0000-0x0000000001E0A000-memory.dmp

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memory/2812-145-0x0000000001230000-0x000000000125C000-memory.dmp

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memory/3540-138-0x00000000010B0000-0x00000000013FA000-memory.dmp

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memory/3540-139-0x0000000000FF0000-0x0000000001001000-memory.dmp

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memory/3540-142-0x0000000000400000-0x000000000042C000-memory.dmp

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memory/3540-136-0x0000000000400000-0x000000000042C000-memory.dmp

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memory/4628-130-0x0000000000450000-0x00000000004D6000-memory.dmp

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memory/4628-134-0x0000000007890000-0x000000000792C000-memory.dmp

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memory/4628-133-0x0000000004EA0000-0x0000000004EAA000-memory.dmp

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memory/4628-132-0x0000000004ED0000-0x0000000004F62000-memory.dmp

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memory/4628-131-0x00000000053E0000-0x0000000005984000-memory.dmp

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