MALICIOUS — agenttesla-mem3.exe

MALICIOUS — agenttesla-mem3.exe is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (98/100), attributed to the Shufab family. 4 of 53 detection engines flagged it, exhibiting 2 ATT&CK techniques.

Identification

SHA-256: a13264b0755c918179609dfbf28357ebf3ba95c1517d84db745746315b828e1e
SHA-1: 5521eaa82d2626d52220fecbfef480589fd38f81
MD5: b6540d7ba015c9df7b028b3bd4891576
imphash: f34d5f2d4577ed6d9ceec516c1f5a744
ssdeep: 12288:5qIrEFD09leQEA49darfr3/2AbitnVYE96ltRT:5AFD1A498H2DM
TLSH: T1924AD589352C0B73C36259E60574D28B8DE360A33FED262049437D76D712EDB58A2B36
Submitted as: agenttesla-mem3.exe
File type: pe · Size: 460807 bytes
Verdict: malicious (98/100) · Family: Shufab

Detections (4 of 53 engines)

Microsoft Defender: Trojan:MSIL/Shufab.A!bit
Emsisoft (Emergency Kit): Gen:Variant.msilheracles.128405
Kaspersky (KVRT): HEUR:Trojan.Win32.Generic
Trellix Stinger (McAfee): Packed-VL!B6540D7BA015

MITRE ATT&CK

Why this verdict

The malicious score of 98/100 is the fusion of 11 weighted signals:

Microsoft Defender flagged Trojan:MSIL/Shufab.A!bit (rule Trojan:MSIL/Shufab.A!bit) - engine signal, weight 0.55, confidence 0.85
Emsisoft (Emergency Kit) flagged Gen:Variant.msilheracles.128405 (rule Gen:Variant.msilheracles.128405) - engine signal, weight 0.55, confidence 0.85
Observed at runtime: Windows Service (T1543.003) (rule Windows Service) - dynamic signal, weight 0.40, confidence 0.90
1 behavioral detection(s): Windows Service Installation [medium] (rule tl-service-install) - dynamic signal, weight 0.40, confidence 0.90
Observed at runtime: Windows Service (T1543.003) (rule Windows Service) - dynamic signal, weight 0.40, confidence 0.90
1 behavioral detection(s): Windows Service Installation [medium] (rule tl-service-install) - dynamic signal, weight 0.40, confidence 0.90
Extracted AgentTesla config (0 C2) - engine signal, weight 0.45, confidence 0.60
Extracted AgentTesla config (0 C2) - engine signal, weight 0.45, confidence 0.60
Embedded network infrastructure: 6.9.1.5, 17.18.7.0 - static signal, weight 0.35, confidence 0.60
Observed at runtime: Modify Registry (T1112) (rule Modify Registry) - dynamic signal, weight 0.12, confidence 0.90
Observed at runtime: Modify Registry (T1112) (rule Modify Registry) - dynamic signal, weight 0.12, confidence 0.90

Dynamic analysis (windows)

7172 behavior events · 2 ATT&CK techniques · 12 dropped files.

Dropped files

754ca725c11cb786b57014d8313fc515e5188d803066687e8d1000ae3cb0ec0a - 754ca725c11cb786b57014d8313fc515e5188d803066687e8d1000ae3cb0ec0a
3daa93b22601ecf778176338b1b5d845584cb99a8d67b2d0d224a64eeaad30b6 - 3daa93b22601ecf778176338b1b5d845584cb99a8d67b2d0d224a64eeaad30b6
3ee8acf49be6d718f214e22396cca984b869e64fa82980246cadcbb7e2c79556 - 3ee8acf49be6d718f214e22396cca984b869e64fa82980246cadcbb7e2c79556
f5f6951568f9452af27da052076114bd6644210e6f2bfd04a0a0c8bcecfb131c - f5f6951568f9452af27da052076114bd6644210e6f2bfd04a0a0c8bcecfb131c
fe98bce981c2ef2c130f6d9f7b66c6229a123367bbc125ae1c3ecf13fae4c401 - fe98bce981c2ef2c130f6d9f7b66c6229a123367bbc125ae1c3ecf13fae4c401
2244ff658f528d217785f4174feed8eddec7ad7e25614900f070b3a219f89ef0 - 2244ff658f528d217785f4174feed8eddec7ad7e25614900f070b3a219f89ef0
c00b0916e94f938e1fc760cdb9580a3b3ec13ec3022355461e5134239d5ddd51 - c00b0916e94f938e1fc760cdb9580a3b3ec13ec3022355461e5134239d5ddd51
de2a0403854c6bc7b7216269fc08ec7dd56548d01961982d9d6318ee7d9d138c - de2a0403854c6bc7b7216269fc08ec7dd56548d01961982d9d6318ee7d9d138c
594199a02709207428581d45bb3742c39a198c863a81e2da43882272b5a3a27d - 594199a02709207428581d45bb3742c39a198c863a81e2da43882272b5a3a27d
25bca1c1366bff2b0949218427545c57c8e39801260ddd7b97a77dafba84155f - 25bca1c1366bff2b0949218427545c57c8e39801260ddd7b97a77dafba84155f
14bdcb3dfae1adf59138170b6eed571c837256a7dcc39e0e97ac53449909fe98 - 14bdcb3dfae1adf59138170b6eed571c837256a7dcc39e0e97ac53449909fe98
3b709fd2af3e2aaf7af7c07271be8eb9068cf8ae032e454d56fbebe228d844c9 - 3b709fd2af3e2aaf7af7c07271be8eb9068cf8ae032e454d56fbebe228d844c9

Embedded domains

searchapp.bundleassets.example
www.msftconnecttest.com
config.edge.skype.com
dns.msftncsi.com
www.bing.com
fd.api.iris.microsoft.com
aps.prod.windows.com
tas02.sls.update.microsoft.com
settings-win.data.microsoft.com
to-do.microsoft.com
ctldl.windowsupdate.com
edge.microsoft.com
msedge.api.cdp.microsoft.com

Embedded IP addresses

6.9.1.5
17.18.7.0

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report