MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a1558391914f4235dfdcdddcdf0de915a800541a4271feb4aff34af82b83a935. 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: 10


Intelligence 10 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a1558391914f4235dfdcdddcdf0de915a800541a4271feb4aff34af82b83a935
SHA3-384 hash: a5ccbc71dbf260bd0a9346d0096fe3510a614ac93e94d27a07809871a60de43036c2446610cde24be0580d6a8b185df2
SHA1 hash: eeba1ef352c09979dfdfb4afdcdc5f41fe2a0119
MD5 hash: bf53c9dc0d0f032033c318aceef906c6
humanhash: freddie-connecticut-november-ten
File name:Po-covid19 2372#w2..exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'304'576 bytes
First seen:2021-01-13 07:36:08 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 24576:SlSjKBb8prhPsxedJuxzPiGqi4y5GLLnr:SlS+BQhEAJuxjlqhnr
TLSH 95556B6C31407DAECC178F7B85949C309A206C67661EE29F54A33CDB2A3D7DA8A143D7
Reporter abuse_ch
Tags:covid19 exe FormBook


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: cbdjo.cam
Sending IP: 111.90.159.32
From: Cathy moore <linkware@ms47.hinet.net>
Reply-To: info@3AComposites.com
Subject: Re purchase order
Attachment: Po-covid19 2372w2.rar (contains "Po-covid19 2372#w2..exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
175
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Po-covid19 2372#w2..exe
Verdict:
Malicious activity
Analysis date:
2021-01-13 09:11:19 UTC
Tags:
covid19 trojan formbook stealer
Link:
https://app.any.run/tasks/7aa39c89-9dab-4a63-a614-853f3346cc18

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/111736/
Detection(s):
SecuriteInfo.com.Trojan.Siggen11.57608.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
Setting browser functions hooks
Forced shutdown of a system process
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/579880
Signature
Antivirus / Scanner detection for submitted sample
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for sample
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 AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 338985 Sample: Po-covid19 2372#w2..exe Startdate: 13/01/2021 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 10 other signatures 2->44 10 Po-covid19 2372#w2..exe 3 2->10         started        process3 file4 30 C:\Users\user\...\Po-covid19 2372#w2..exe.log, ASCII 10->30 dropped 54 Injects a PE file into a foreign processes 10->54 14 Po-covid19 2372#w2..exe 10->14         started        17 Po-covid19 2372#w2..exe 10->17         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 19 explorer.exe 14->19 injected process8 dnsIp9 32 www.scientificimaginetics.com 154.92.73.140, 49740, 80 POWERLINE-AS-APPOWERLINEDATACENTERHK Seychelles 19->32 34 thesaltlifestyle.com 34.102.136.180, 49736, 80 GOOGLEUS United States 19->34 36 4 other IPs or domains 19->36 46 System process connects to network (likely due to code injection or exploit) 19->46 23 msiexec.exe 19->23         started        signatures10 process11 signatures12 48 Modifies the context of a thread in another process (thread injection) 23->48 50 Maps a DLL or memory area into another process 23->50 52 Tries to detect virtualization through RDTSC time measurements 23->52 26 cmd.exe 1 23->26         started        process13 process14 28 conhost.exe 26->28         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a1558391914f4235dfdcdddcdf0de915a800541a4271feb4aff34af82b83a935/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-01-13 05:42:48 UTC
AV detection:
12 of 44 (27.27%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ufkyhemrj5bdlx643xon6dpjcwuaava2ijy75nfp6nfpqk4dve2q._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/210113-y5837wcf7a/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.styrelseforum.com/p95n/
Unpacked files
SH256 hash:
a1558391914f4235dfdcdddcdf0de915a800541a4271feb4aff34af82b83a935
MD5 hash:
bf53c9dc0d0f032033c318aceef906c6
SHA1 hash:
eeba1ef352c09979dfdfb4afdcdc5f41fe2a0119
Link:
https://www.unpac.me/results/95f7f573-6806-4ef3-90bb-bb391b23f538/
SH256 hash:
64a419709ad219ffc006bda776b650da486d55048d2fa34525f40227da0e5c86
MD5 hash:
88c0ec8398978fa2e4240f02765086ad
SHA1 hash:
5a5c4935b2d70e890c89ad9332365f4f4aa86f3c
Link:
https://www.unpac.me/results/95f7f573-6806-4ef3-90bb-bb391b23f538/
SH256 hash:
64d5f173fef1d7e2b327c89bc5be9cfe58aa68bcfc085d21e94b5df3347e7191
MD5 hash:
c226fe59ce3b6ce4c81d7fe528f2454d
SHA1 hash:
bb9498c08aa7384b63cd11c9428445f4917f5116
Link:
https://www.unpac.me/results/95f7f573-6806-4ef3-90bb-bb391b23f538/
SH256 hash:
2339f0c6042cb496ad8d0771de5fe11e6ea898566dc49511b245f417a6f9c014
MD5 hash:
c5aa83df2c9f39b0d7687fef50af3e11
SHA1 hash:
14ce7a3376fe506a8b2bf2de4602d2e9967bf8cc
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/95f7f573-6806-4ef3-90bb-bb391b23f538/
Parent samples :
a1558391914f4235dfdcdddcdf0de915a800541a4271feb4aff34af82b83a935
851353adb58e4070df07037da80543a4d67d6eceee20659fe9c5cb5ef4c1a344
1498cb2f9fa31c5126db058a10187fa76040789d257ac2b61f4d4bbbe77a986c
f03367cb1758bddd8877e7aca02223797330fc8482d6ffce6f397730ffefd53f
89997eff59d390acca1d0b385aa4714417178afb9011ac5d07e290fac2ca51b9
178ab8c2af1c8e5a0782d79d4910efc280b6fcd1213d84cf5899d28ba232bfaa
cb2e173430a404a7cf52a54db1ff96b0de6eed1b8953d96b57e2780e45e71db9
2ba03179153cd1efd2098bf6fc7870efb2b3a5a60f2b516c4c3dace977627289
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/a1558391914f4235dfdcdddcdf0de915a800541a4271feb4aff34af82b83a935

File information

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

Malspam

Formbook

rar 05e17c6f5c37d81e9e07a688f74903b06d77f1f9bb12fac975b02dcc60e1e233

Formbook

Executable exe a1558391914f4235dfdcdddcdf0de915a800541a4271feb4aff34af82b83a935

(this sample)

  
Dropped by
MD5 a601c47636f22c2c3929e18f961553b0
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 05e17c6f5c37d81e9e07a688f74903b06d77f1f9bb12fac975b02dcc60e1e233
Cape
Cape
https://www.capesandbox.com/analysis/111736/

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