emotet | d2c3d09baf6258ad655c1c510ed7bb44f10d53d6d4d65b2e55cca8c41968d6c4

Analysis

Target
MFCCALC.dll
Size 412KB
Sample220419-yzdk1aaeej
SHA256 d2c3d09baf6258ad655c1c510ed7bb44f10d53d6d4d65b2e55cca8c41968d6c4
MD5 a4221d5120176d204745e65b4903ea4b
SHA1 803faf184293fa6ccb0384f14ada36274040e8a2
SHA512 445fefca086d86e39d405e2446e0b5c4d0e8d18f89d85fdc139336463c9ca21fa8ff8aa14ab2550d652849991b8a236de1a99064c3775e3353be5d1e443274b0
MD5 SHA1 SHA512

Score

10^/10

Family

Botnet

eck1.plain

ecs1.plain

Emotet
Emotet is a trojan that is primarily spread through spam emails.
trojan banker emotet
suricata: ET MALWARE W32/Emotet CnC Beacon 3
suricata: ET MALWARE W32/Emotet CnC Beacon 3
suricata

Loads dropped DLL 1 IoCs

pid	Process
4192	regsvr32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Pewawhvksalj\bxslgij.oit	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4192	regsvr32.exe
4192	regsvr32.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1396	regsvr32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3048 wrote to memory of 1396	3048	regsvr32.exe	81
PID 3048 wrote to memory of 1396	3048	regsvr32.exe	81
PID 3048 wrote to memory of 1396	3048	regsvr32.exe	81
PID 1396 wrote to memory of 4192	1396	regsvr32.exe	82
PID 1396 wrote to memory of 4192	1396	regsvr32.exe	82
PID 1396 wrote to memory of 4192	1396	regsvr32.exe	82

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\MFCCALC.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:3048
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\MFCCALC.dll
  2⤵
  - Drops file in System32 directory
  - Suspicious behavior: RenamesItself
  - Suspicious use of WriteProcessMemory
  PID:1396
- - C:\Windows\SysWOW64\regsvr32.exe
    C:\Windows\SysWOW64\regsvr32.exe /s "C:\Windows\SysWOW64\Pewawhvksalj\bxslgij.oit"
    3⤵
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    PID:4192

bxslgij.oit

Path C:\Windows\SysWOW64\Pewawhvksalj\bxslgij.oit
Size 412KB
SHA256 d2c3d09baf6258ad655c1c510ed7bb44f10d53d6d4d65b2e55cca8c41968d6c4
MD5 a4221d5120176d204745e65b4903ea4b
SHA1 803faf184293fa6ccb0384f14ada36274040e8a2
SHA512 445fefca086d86e39d405e2446e0b5c4d0e8d18f89d85fdc139336463c9ca21fa8ff8aa14ab2550d652849991b8a236de1a99064c3775e3353be5d1e443274b0
SSDEEP 6144:aH0RW81UplEIb6hRAOf6DXyhCra8OCtS08OB8xS4GE/mFCo3QkgqbqAT:tFpMOfeihCraLuiS4zCCo3QkvqA
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/1396-131-0x0000000000CD0000-0x0000000000CF7000-memory.dmp

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memory/4192-136-0x0000000000A40000-0x0000000000A67000-memory.dmp

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