MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e4c51cfe125602ab5cd33e751d121395c59599055a8294a5234c37a399ddf582. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry



Formbook


Vendor detections: 13


Intelligence 13 IOCs YARA 6 File information Comments

SHA256 hash: e4c51cfe125602ab5cd33e751d121395c59599055a8294a5234c37a399ddf582
SHA3-384 hash: 5ffbeb0e972e1c6b6979cc573beed0fdf6172a51f7f318d624307bc5425b14a5c84142a88f84076f99b74aedf830b89c
SHA1 hash: 0de7912186b54ef2c22d8266c67be7573cdba3f9
MD5 hash: dad8ab1e1bd10ab4dca7de6f5ebc1404
humanhash: cup-fourteen-charlie-six
File name:Statement of Account.exe
Download: download sample
Signature Formbook
File size:1'026'560 bytes
First seen:2021-08-27 15:20:43 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'454 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:AcgDMzo/RYxwBVu34MaU4ui6KgGKd7QBeamsNiBprti+8H1Fo:AYARkwB7/U4uIKhHl75iJH12
Threatray 8'734 similar samples on MalwareBazaar
TLSH T1EC25A03D29BD2627D179C7BACBE0C833F0549CAF3111AA6454D79B6A5742E8235C323E
dhash icon 0000000000000000 (872 x AgentTesla, 496 x Formbook, 296 x RedLineStealer)
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence


File Origin
# of uploads :
1
# of downloads :
469
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Statement of Account.exe
Verdict:
Malicious activity
Analysis date:
2021-08-27 15:22:42 UTC
Tags:
trojan formbook stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Deleting a recently created file
Unauthorized injection to a recently created process
Launching a process
Creating a process with a hidden window
Creating a file
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Found malware configuration
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Suspect Svchost Activity
Sigma detected: Suspicious Svchost Process
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 472943 Sample: Statement of Account.exe Startdate: 27/08/2021 Architecture: WINDOWS Score: 100 38 www.ericalife.com 2->38 46 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->46 48 Found malware configuration 2->48 50 Malicious sample detected (through community Yara rule) 2->50 52 11 other signatures 2->52 11 Statement of Account.exe 7 2->11         started        signatures3 process4 file5 32 C:\Users\user\AppData\...\PahllDhJuqe.exe, PE32 11->32 dropped 34 C:\Users\user\AppData\Local\...\tmpA7E2.tmp, XML 11->34 dropped 36 C:\Users\...\Statement of Account.exe.log, ASCII 11->36 dropped 14 Statement of Account.exe 11->14         started        17 schtasks.exe 1 11->17         started        process6 signatures7 62 Modifies the context of a thread in another process (thread injection) 14->62 64 Maps a DLL or memory area into another process 14->64 66 Sample uses process hollowing technique 14->66 68 Queues an APC in another process (thread injection) 14->68 19 explorer.exe 14->19 injected 23 conhost.exe 17->23         started        process8 dnsIp9 40 xn--marketingrevolucin-61b.com 192.254.187.234, 49724, 80 UNIFIEDLAYER-AS-1US United States 19->40 42 www.lockalock.com 156.252.65.176, 49731, 80 POWERLINE-AS-APPOWERLINEDATACENTERHK Seychelles 19->42 44 12 other IPs or domains 19->44 54 System process connects to network (likely due to code injection or exploit) 19->54 25 svchost.exe 19->25         started        signatures10 process11 signatures12 56 Modifies the context of a thread in another process (thread injection) 25->56 58 Maps a DLL or memory area into another process 25->58 60 Tries to detect virtualization through RDTSC time measurements 25->60 28 cmd.exe 1 25->28         started        process13 process14 30 conhost.exe 28->30         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-08-27 08:57:00 UTC
AV detection:
8 of 28 (28.57%)
Threat level:
  5/5
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:xloader campaign:b6cu loader rat suricata
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.xn--marketingrevolucin-61b.com/b6cu/
Unpacked files
SH256 hash:
68a49f8d55aecf2551c16097b302614bcd617a3d1b565f37cd45a92993d0f065
MD5 hash:
1bfe6840b1414ec3315aa2735431fb71
SHA1 hash:
f6e382e2d534b5edc965d5053b6a4c63488e4c43
Detections:
win_formbook_g0 win_formbook_auto
SH256 hash:
c0ee1071e444f415f8b62856a0896f3b22e563f1bb4f03d14142583efe49a565
MD5 hash:
29db2e114b88ae1f6a00c9aa71690043
SHA1 hash:
ec82db71443556a5b320357b0b8b09e70ec1db9c
SH256 hash:
ffec4aca031c3005934c0aea0c9f5e2f19ffcfc361b776d7fce8c71c1f7f20a7
MD5 hash:
b76d5e7785cfc150acf8029107184d96
SHA1 hash:
a1e6b4d3c460d101212575f0d972f0fc544d8aed
SH256 hash:
e4c51cfe125602ab5cd33e751d121395c59599055a8294a5234c37a399ddf582
MD5 hash:
dad8ab1e1bd10ab4dca7de6f5ebc1404
SHA1 hash:
0de7912186b54ef2c22d8266c67be7573cdba3f9
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures


MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:Formbook
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:pe_imphash
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:win_formbook_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Formbook

Executable exe e4c51cfe125602ab5cd33e751d121395c59599055a8294a5234c37a399ddf582

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment

Comments