formbook | 736808fef49ea666d160c9943b624f0ad79c3d10c44b8042a602d8a31d2465a3

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
24/10/2022, 16:03

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General

Target
Doc24102022.87654567898765.exe
Size 824KB
Sample221024-thb9dsheg5
SHA256 736808fef49ea666d160c9943b624f0ad79c3d10c44b8042a602d8a31d2465a3
MD5 c8904b306b2fc74a802c619fe8100407
SHA1 cbef3538af37ad321282ff0fa412dc1d7fe7d48e
SHA512 0dc87e174e74f833e545e985738ae82ea2b2721ae8c5dc5a6257c1c6beaacb88be746b8534bf93d48083074076694b1be95dcc9f2b5de305dd6eb4af41439d51
SSDEEP 12288:lYlTCmdWjC7C3ZTmLoIG+GV6FCQuqdUa3WdRjyrIT:lYtdMC7C3ZuoIqV6Mdqde
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

formbook s5zx rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

s5zx

Decoy

wMAY83Xf8pYlwmcLm5HvBdaL
CEtcpyGISM/CVFQ5zam3
jQE/nMmnXlmcTVQ5zam3
kUtRVpN/YY33wLfac81TKg==
WxtrRs8s52o/GPsPog==
w8LUN0UWABcTD1Hv
pCU+Wnk+6/E08im2Xo5y7uea
4o2dnKCJNOgbwud9JfMHrMJuAGI+fg==
AbPNtFXXpcoeyWB1WGC/AOiS
5Kbo75EKwcLiArHSoc/SIg==
IaICXWtqc2xvU++OXEd+tRitdw==
x0M6GKkDC8SPQGd/S61UdfgVZLqVDFg=
Y6TEJKsC3IxVJN986uJugqNcN7NO5EU=
rltiOepgaw3Mk0Lbt1yoxuA=
z94mjMxyFcLUu1Q=
xH3F3Hz93BCSMuBtI65JGm+VN3xm
+GO142npuuptGPsPog==
WX/VsE7R0FTm3Ju2ema/AOiS
qam0OKkfCyE6ZKxZtQ==
0ojGr0OMV9khz+4GoA==
nh6h9Rrbak7WPQ==
gHPMoizJjpupoTRLvw==
LiF/mkXSvIxF5v0Oqg==
UHnS03X1w/u1f87embNLJ/qxdQ==
wsYGdd3IQz54
6Wxsb5rIQz54
ykKQ4/cC8vQ/EU6kopGq
bvr6Ax3nlZa+NUTdl3W/AOiS
akuLZxGGXP7DfMnYmbNLJ/qxdQ==
jHv7ltTDvc0M34yoIq7hdfywfQ==
r93neCCXOnAMB0fLY0ddystyAGI+fg==
Qmx/5GTFjcieK2N/DHQaEfScZbNO5EU=
bqf2WVk212cy1PH5cssfPgm5fw==
joqgONJPAimIO8jbTLPOGMNuAGI+fg==
yvNUMs9XWuBs4r4k1Rs=
khwlKGJH4UibRl20rJ2y
UU9TqmSYVdnCL0Tp
UlNWweXQzcjTuErXu1yoxuA=
aJ+rLtFJR8hcOD1Qvw==
Or3H3VU+ir0zGPsPog==
LSY56NGzWP383GHAlnSg
kozNqED8pEhv
FkxVrMKYnZNFvUA=
RTyUl5h3MkicailGGQshuMVoAGI+fg==
nCk/JiMTog+MDz5XEHQGC/k=
o664Cxsa2F5V2Ra1LhujVMO+gZQ=
1ovBmTe+1Xb+ZHuMKJoyCtNuAEU4aQ==
AkB84Az8s7LtpuN9MxElopiVN3xm
JFvkBAfy6afux1c=
FMkFsSqPdxCvnjlUB2YYKcO+gZQ=
zQ9VuuDsCS5pCzHDWlG/AOiS
HAdaXQdsDy15D5mtbV+/AOiS
sDSY+R0G8RFV9RavQgYSq8lyAGI+fg==
x8ETGLgSEcG0mkfemfebVMO+gZQ=
6Bpc3FmrifP5s0o=
jNVRvH/Wak7WPQ==
Uk+tyoPu7XXyap7Boc/SIg==
0I2MVU0o1vBtGPsPog==
cZ+8Wvp7lA0c2n0Dqg==
7h0kg6GaVc+UYM6mggA=
vPYixIXYak7WPQ==
VQcjBg3xq7g7KNXon3W/AOiS
ti0nKzIWDyAZ8RixNB8=
BmdzwkR+G8HKsgbXuBk=
plckwz.cyou

Signatures

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

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-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	Doc24102022.87654567898765.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4952 set thread context of 848	4952	Doc24102022.87654567898765.exe	93
PID 848 set thread context of 2792	848	Doc24102022.87654567898765.exe	49
PID 5024 set thread context of 2792	5024	svchost.exe	49

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	svchost.exe

Suspicious behavior: EnumeratesProcesses 48 IoCs

pid	Process
4952	Doc24102022.87654567898765.exe
4952	Doc24102022.87654567898765.exe
4952	Doc24102022.87654567898765.exe
4952	Doc24102022.87654567898765.exe
4952	Doc24102022.87654567898765.exe
4952	Doc24102022.87654567898765.exe
4952	Doc24102022.87654567898765.exe
4952	Doc24102022.87654567898765.exe
848	Doc24102022.87654567898765.exe
848	Doc24102022.87654567898765.exe
848	Doc24102022.87654567898765.exe
848	Doc24102022.87654567898765.exe
848	Doc24102022.87654567898765.exe
848	Doc24102022.87654567898765.exe
848	Doc24102022.87654567898765.exe
848	Doc24102022.87654567898765.exe
5024	svchost.exe
5024	svchost.exe
5024	svchost.exe
5024	svchost.exe
5024	svchost.exe
5024	svchost.exe
5024	svchost.exe
5024	svchost.exe
5024	svchost.exe
5024	svchost.exe
5024	svchost.exe
5024	svchost.exe
5024	svchost.exe
5024	svchost.exe
5024	svchost.exe
5024	svchost.exe
5024	svchost.exe
5024	svchost.exe
5024	svchost.exe
5024	svchost.exe
5024	svchost.exe
5024	svchost.exe
5024	svchost.exe
5024	svchost.exe
5024	svchost.exe
5024	svchost.exe
5024	svchost.exe
5024	svchost.exe
5024	svchost.exe
5024	svchost.exe
5024	svchost.exe
5024	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2792	Explorer.EXE

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
848	Doc24102022.87654567898765.exe
848	Doc24102022.87654567898765.exe
848	Doc24102022.87654567898765.exe
5024	svchost.exe
5024	svchost.exe
5024	svchost.exe
5024	svchost.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4952	Doc24102022.87654567898765.exe
Token: SeDebugPrivilege	848	Doc24102022.87654567898765.exe
Token: SeDebugPrivilege	5024	svchost.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 4952 wrote to memory of 2620	4952	Doc24102022.87654567898765.exe	89
PID 4952 wrote to memory of 2620	4952	Doc24102022.87654567898765.exe	89
PID 4952 wrote to memory of 2620	4952	Doc24102022.87654567898765.exe	89
PID 4952 wrote to memory of 4076	4952	Doc24102022.87654567898765.exe	90
PID 4952 wrote to memory of 4076	4952	Doc24102022.87654567898765.exe	90
PID 4952 wrote to memory of 4076	4952	Doc24102022.87654567898765.exe	90
PID 4952 wrote to memory of 4336	4952	Doc24102022.87654567898765.exe	91
PID 4952 wrote to memory of 4336	4952	Doc24102022.87654567898765.exe	91
PID 4952 wrote to memory of 4336	4952	Doc24102022.87654567898765.exe	91
PID 4952 wrote to memory of 4588	4952	Doc24102022.87654567898765.exe	92
PID 4952 wrote to memory of 4588	4952	Doc24102022.87654567898765.exe	92
PID 4952 wrote to memory of 4588	4952	Doc24102022.87654567898765.exe	92
PID 4952 wrote to memory of 848	4952	Doc24102022.87654567898765.exe	93
PID 4952 wrote to memory of 848	4952	Doc24102022.87654567898765.exe	93
PID 4952 wrote to memory of 848	4952	Doc24102022.87654567898765.exe	93
PID 4952 wrote to memory of 848	4952	Doc24102022.87654567898765.exe	93
PID 4952 wrote to memory of 848	4952	Doc24102022.87654567898765.exe	93
PID 4952 wrote to memory of 848	4952	Doc24102022.87654567898765.exe	93
PID 2792 wrote to memory of 5024	2792	Explorer.EXE	94
PID 2792 wrote to memory of 5024	2792	Explorer.EXE	94
PID 2792 wrote to memory of 5024	2792	Explorer.EXE	94
PID 5024 wrote to memory of 3464	5024	svchost.exe	95
PID 5024 wrote to memory of 3464	5024	svchost.exe	95
PID 5024 wrote to memory of 3464	5024	svchost.exe	95

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2792
- C:\Users\Admin\AppData\Local\Temp\Doc24102022.87654567898765.exe
  "C:\Users\Admin\AppData\Local\Temp\Doc24102022.87654567898765.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4952
- - C:\Users\Admin\AppData\Local\Temp\Doc24102022.87654567898765.exe
    "C:\Users\Admin\AppData\Local\Temp\Doc24102022.87654567898765.exe"
    3⤵
    PID:2620
- - C:\Users\Admin\AppData\Local\Temp\Doc24102022.87654567898765.exe
    "C:\Users\Admin\AppData\Local\Temp\Doc24102022.87654567898765.exe"
    3⤵
    PID:4076
- - C:\Users\Admin\AppData\Local\Temp\Doc24102022.87654567898765.exe
    "C:\Users\Admin\AppData\Local\Temp\Doc24102022.87654567898765.exe"
    3⤵
    PID:4336
- - C:\Users\Admin\AppData\Local\Temp\Doc24102022.87654567898765.exe
    "C:\Users\Admin\AppData\Local\Temp\Doc24102022.87654567898765.exe"
    3⤵
    PID:4588
- - C:\Users\Admin\AppData\Local\Temp\Doc24102022.87654567898765.exe
    "C:\Users\Admin\AppData\Local\Temp\Doc24102022.87654567898765.exe"
    3⤵
    - Checks computer location settings
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:848
- C:\Windows\SysWOW64\svchost.exe
  "C:\Windows\SysWOW64\svchost.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:5024
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:3464

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/848-152-0x0000000000401000-0x000000000042F000-memory.dmp

Download

memory/848-145-0x0000000000401000-0x000000000042F000-memory.dmp

Download

memory/848-148-0x0000000001410000-0x0000000001420000-memory.dmp

Download

memory/848-151-0x0000000000400000-0x000000000042F000-memory.dmp

Download

memory/848-147-0x0000000001890000-0x0000000001BDA000-memory.dmp

Download

memory/848-144-0x0000000000400000-0x000000000042F000-memory.dmp

Download

memory/848-142-0x0000000000400000-0x000000000042F000-memory.dmp

Download

memory/2792-149-0x0000000008540000-0x00000000086E5000-memory.dmp

Download

memory/2792-159-0x0000000002D50000-0x0000000002E0A000-memory.dmp

Download

memory/2792-157-0x0000000002D50000-0x0000000002E0A000-memory.dmp

Download

memory/4952-133-0x0000000005740000-0x0000000005CE4000-memory.dmp

Download

memory/4952-136-0x0000000008CB0000-0x0000000008D4C000-memory.dmp

Download

memory/4952-132-0x00000000006D0000-0x00000000007A4000-memory.dmp

Download

memory/4952-135-0x0000000005370000-0x000000000537A000-memory.dmp

Download

memory/4952-134-0x0000000005190000-0x0000000005222000-memory.dmp

Download

memory/5024-156-0x00000000018C0000-0x000000000194F000-memory.dmp

Download

memory/5024-155-0x0000000000DB0000-0x0000000000DDD000-memory.dmp

Download

memory/5024-154-0x0000000001A00000-0x0000000001D4A000-memory.dmp

Download

memory/5024-153-0x0000000000B80000-0x0000000000B8E000-memory.dmp

Download

memory/5024-158-0x0000000000DB0000-0x0000000000DDD000-memory.dmp

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