MALICIOUS — 53881716e02c8ec3ca57d578f734331352c1029671fd3dd9a391901e0acd58fe

MALICIOUS — 53881716e02c8ec3ca57d578f734331352c1029671fd3dd9a391901e0acd58fe is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (100/100), attributed to the Mbrlock family. 6 of 56 detection engines flagged it, exhibiting 5 ATT&CK techniques.

Identification

SHA-256: 53881716e02c8ec3ca57d578f734331352c1029671fd3dd9a391901e0acd58fe
SHA-1: 35bcd48aadb914ec1fe97ef34b02a7c0343b870e
MD5: eaa97818156072e0bc1c5ed90763cc68
imphash: 8d08b9aff260461badc1821f4f717247
ssdeep: 196608:8Kazg7DSmKazg7DS+Kazg7DSmKazg7DS1:Ig7uig7uqg7uig7u1
TLSH: T16068237E130B7403DE3AD62554862F8D0823BC6D507D5888553F84BE93F6CEB27816AA
Submitted as: 53881716e02c8ec3ca57d578f734331352c1029671fd3dd9a391901e0acd58fe
File type: pe · Size: 8093696 bytes
Verdict: malicious (100/100) · Family: Mbrlock

Detections (6 of 56 engines)

capa (capabilities): capability:collection/keylog
ClamAV (daily): Win.Trojan.Mbrlock-9779766-0
YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
Microsoft Defender: Trojan:Win32/Blocker.EM!MTB
Emsisoft (Emergency Kit): Gen:Variant.Genie.689
Kaspersky (KVRT): HEUR:Trojan-Ransom.Win32.Blocker.vho

MITRE ATT&CK

Why this verdict

The malicious score of 100/100 is the fusion of 14 weighted signals:

ClamAV (daily) flagged Win.Trojan.Mbrlock-9779766-0 (rule Win.Trojan.Mbrlock-9779766-0) - engine signal, weight 0.90, confidence 0.95
2 behavioral detection(s) across 2 rule(s): Registry Run Key Persistence [high] (rule tl-run-key) - dynamic signal, weight 0.63, confidence 0.90
Dropped a malicious payload: OScam Collection.htm - dynamic signal, weight 0.62, confidence 0.90
Microsoft Defender flagged Trojan:Win32/Blocker.EM!MTB (rule Trojan:Win32/Blocker.EM!MTB) - engine signal, weight 0.55, confidence 0.85
Emsisoft (Emergency Kit) flagged Gen:Variant.Genie.689 (rule Gen:Variant.Genie.689) - engine signal, weight 0.55, confidence 0.85
Kaspersky (KVRT) flagged HEUR:Trojan-Ransom.Win32.Blocker.vho (rule HEUR:Trojan-Ransom.Win32.Blocker.vho) - engine signal, weight 0.55, confidence 0.85
YARA: JPCERT/CC flagged JPCERT_HUILoader_PlugX_SideLoad (rule JPCERT_HUILoader_PlugX_SideLoad) - engine signal, weight 0.60, confidence 0.70
Observed at runtime: Registry Run Key Persistence (T1547.001) (rule Registry Run Key Persistence) - 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
capture keystrokes (rule capture keystrokes) - capa signal, weight 0.40, confidence 0.80
Contacted 1 external host(s) and 18 HTTP request(s) at runtime - network signal, weight 0.40, confidence 0.80
Anti-analysis: T1497, T1497.001, T1082, T1622 - dynamic signal, weight 0.40, confidence 0.75
capa (capabilities) flagged capability:collection/keylog (rule capability:collection/keylog) - engine signal, weight 0.35, confidence 0.70
Observed at runtime: Modify Registry (T1112) (rule Modify Registry) - dynamic signal, weight 0.12, confidence 0.90

Dynamic analysis (windows)

19610 behavior events · 3 ATT&CK techniques · 8 dropped files.

Dropped files

C:\Users\analyst\AppData\Local\Temp\top2.gif - 7cb06f8dbfa5f13359e2dcee822fae73ef01a00ff29ce99ec401a73017875aee
C:\Users\analyst\AppData\Local\Temp\OScam Collection.htm - fcd785d06efc594628f2460b3098d5b97633f2e4587be0fa50dd8cd60a447407
C:\Users\analyst\AppData\Local\Microsoft\Internet Explorer\MSIMGSIZ.DAT - b0715c24eef4c3d20c812bb858a4e50569a836f0217c7652fb350be953e5f50d
C:\Users\analyst\AppData\Roaming\Scegli_nome_allegato.exe - ab01a333f38605cbcebd80e0a84ffae2803a9b4f6bebb1e9f773e949a87cb420
C:\Users\analyst\AppData\Roaming\7D57AD13E21.exe - 21449b7942111f6dbccd95fef68f6325dbcba85a38a906a86e89b41a02642ef5
ca517a62cc4bd322c4afb74599b3f4a6f414d0fb6f750eae56a0d9c95d997f49 - ca517a62cc4bd322c4afb74599b3f4a6f414d0fb6f750eae56a0d9c95d997f49
0367653f24003fae1324a91b98f41caabdd5d8578a49132aa0222f02d2a106c5 - 0367653f24003fae1324a91b98f41caabdd5d8578a49132aa0222f02d2a106c5
57b7340e39b0fefe2cd21abb036152c485a0ceb794934af650534ddefacb7481 - 57b7340e39b0fefe2cd21abb036152c485a0ceb794934af650534ddefacb7481

Embedded URLs

http://www.msftconnecttest.com/connecttest.txt
http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
http://rb.symcb.com/rb.crl
http://c.pki.goog/r/r1.crl
http://x2.c.lencr.org/
http://ye.c.lencr.org/
http://c.pki.goog/wr2/9UVbN0w5E6Y.crl
http://yr.c.lencr.org/

Embedded domains

hb.za
x1.c.lencr.org
x2.c.lencr.org
ye.c.lencr.org
yr.c.lencr.org
sunray1975.zapto.org

Embedded IP addresses

20.42.73.24
52.123.252.231
4.230.171.124
172.215.188.232
74.179.77.204
20.247.184.197
135.232.92.97
20.50.73.15
20.42.65.84
172.64.154.167
52.110.12.54
52.110.12.51
135.234.160.245
52.148.114.188
72.145.35.109
52.110.12.55
52.110.12.56

File paths

B:\:t:
X:\:`:d:h:l:p:t:
X:\:`:d:h:l:p:t:x:
J:\:`:d:h:
I:\ba

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report