MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a9a706f6bf46b495b886f632dcafdcc8a3d493c465451c69d25fa04006a918c2. 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: 12


Intelligence 12 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a9a706f6bf46b495b886f632dcafdcc8a3d493c465451c69d25fa04006a918c2
SHA3-384 hash: b4da5cb63ae2a19d52f591269a0a8eab18b8de950062879b331d81631634ee93ad9279d50b941cb022fdd43f2ceb3b32
SHA1 hash: caf044df8ba359642d24c19aba9b9d16e22122cd
MD5 hash: ccba61ffbee99e8c4441cd2ed9368dca
humanhash: chicken-nitrogen-lake-blue
File name:New PO 100955.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'437'184 bytes
First seen:2021-03-16 10:36:17 UTC
Last seen:2021-03-16 15:01:13 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'660 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:3eqXOtIh0RToVGTC5qI5/yB/Ru6x8hdMm5yBUbBCFgOXJykdX75QA7fxOjbgvs1G:5lyB5u6AdFCFgOEk8YxU+2YgrvJRMr
Threatray 4'196 similar samples on MalwareBazaar
TLSH C665611316F5FE24D27D7230CC37601986ECA1729338B469BD5E33868A5FA414F636AE
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: bounce.aatmanirbhar.academy
Sending IP: 157.245.83.132
From: aaron@polishedbrands.com
Subject: Re: New P.O From customer (2021)
Attachment: New PO 100955.rar (contains "New PO 100955.exe")

Intelligence

File Origin
# of uploads :
3
# of downloads :
118
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
New PO 100955.exe
Verdict:
Malicious activity
Analysis date:
2021-03-16 10:38:32 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/9197b077-09ba-487c-a9d8-425c2b53640d

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.579.303.26446.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/1f99e1e5-79bf-4dba-9d4b-5a7f3f262012
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/640590
Signature
.NET source code contains potential unpacker
Binary contains a suspicious time stamp
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 369268 Sample: New PO 100955.exe Startdate: 16/03/2021 Architecture: WINDOWS Score: 100 38 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->38 40 Found malware configuration 2->40 42 Malicious sample detected (through community Yara rule) 2->42 44 9 other signatures 2->44 10 New PO 100955.exe 3 2->10         started        process3 file4 30 C:\Users\user\...30ew PO 100955.exe.log, ASCII 10->30 dropped 54 Injects a PE file into a foreign processes 10->54 14 New PO 100955.exe 10->14         started        signatures5 process6 signatures7 56 Modifies the context of a thread in another process (thread injection) 14->56 58 Maps a DLL or memory area into another process 14->58 60 Sample uses process hollowing technique 14->60 62 Queues an APC in another process (thread injection) 14->62 17 explorer.exe 14->17 injected process8 dnsIp9 32 www.aacy.net 150.95.8.175, 49746, 80 GMOOSK-NETGMOInternetIncJP Japan 17->32 34 www.memento2study.com 17->34 36 3 other IPs or domains 17->36 46 System process connects to network (likely due to code injection or exploit) 17->46 21 cmd.exe 17->21         started        24 autochk.exe 17->24         started        signatures10 process11 signatures12 48 Modifies the context of a thread in another process (thread injection) 21->48 50 Maps a DLL or memory area into another process 21->50 52 Tries to detect virtualization through RDTSC time measurements 21->52 26 cmd.exe 1 21->26         started        process13 process14 28 conhost.exe 26->28         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a9a706f6bf46b495b886f632dcafdcc8a3d493c465451c69d25fa04006a918c2/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-03-16 03:53:18 UTC
AV detection:
19 of 28 (67.86%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vgtqn5v7i22jloeg6yznzl64zcr5je6emvcry2osl6qeabvjddba._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
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06fa1b160e322bd7710c9110b1e4e873795b5c2680b8bbe70bbaf23484533459
Formbook
11f06223417d6045acaa15cf7f5515d9afdfc23590c9cd021c2ae90a736bb6cd
Formbook
12e42bff4fa377032623342ac1f23a5c87225a40ef8b900cbb06ae4bd203864d
Formbook
3d3095586bf72d6b631e44681654c68707a6f07987b02e367e7d88ac9ddab77c
Formbook
aa9692c1769e25297176b847f4274570c56c4d74f4577608bd036e72d82d5bdb
Formbook
adcc2671f1168261ceace2da6f28a79e0b3bc2f774fac1d79f4628f494951d24
Formbook
b8ae844621bf21969ca7070937f91101ca4f7277917979ad9d4a4ac43d6e5fad
Formbook
c8aaa220adc918c9972a9c588db765290bf51553bed7da48c604d188136d3073
Formbook
e3670bfc1db6fb7223bb6b231ef4c3afd9d34de1d8f87b7a8e7a4cb27cfaa37d
Formbook
f39b9e8c4a9aa6d8cd9f069e8a8ee81a3f666e07071f2b4673aa42633026736c
Formbook
+ 4'186 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/210316-511l6465y6/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.jackrussellclothing.com/4ojc/
Unpacked files
SH256 hash:
2b43013edb5706a946f4e523a1a219b31fe2a7e05c48884c048882b3c1327655
MD5 hash:
b7159eb14fe565d4e233604b629bbd8a
SHA1 hash:
64f82c67e6c7cbc078141162a49bffcee3d9ebb9
Link:
https://www.unpac.me/results/1b17db78-c69e-46a0-bde6-b8ef3614bc6d/
SH256 hash:
a9a706f6bf46b495b886f632dcafdcc8a3d493c465451c69d25fa04006a918c2
MD5 hash:
ccba61ffbee99e8c4441cd2ed9368dca
SHA1 hash:
caf044df8ba359642d24c19aba9b9d16e22122cd
Link:
https://www.unpac.me/results/1b17db78-c69e-46a0-bde6-b8ef3614bc6d/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a9a706f6bf46b495b886f632dcafdcc8a3d493c465451c69d25fa04006a918c2

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:Ping_Del_method_bin_mem
Create hunting rule
Author:James_inthe_box
Description:cmd ping IP nul del

File information

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

Malspam

Formbook

rar 0b986f01a6797ebe5cc923fabfbbab16790fc5dbeccc8e7f393cc695bf4b45a4

Formbook

Executable exe a9a706f6bf46b495b886f632dcafdcc8a3d493c465451c69d25fa04006a918c2

(this sample)

  
Dropped by
MD5 fb68de8e93b31a66d1408ebefbb4b06f
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 0b986f01a6797ebe5cc923fabfbbab16790fc5dbeccc8e7f393cc695bf4b45a4

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