emotet | b66e5aebe38403fee593e1fe0d85513bfd688b926d762c618fce5864821f400c

General

Target

d226ff9f8be818bea5cfef3007ce6c3e_JaffaCakes118.exe
Size

268KB
MD5

d226ff9f8be818bea5cfef3007ce6c3e
SHA1

94900c1b24b03f087206b78e99fde0b1ee9eaf0e
SHA256

b66e5aebe38403fee593e1fe0d85513bfd688b926d762c618fce5864821f400c
SHA512

89122d8d0a936fe073f074aed256a22a5e662ac31597936f4b257e55f28333f409b122583340fcbf94ef268cbdff64939038c9826c3ada4971e68a2b3a346858
SSDEEP

3072:iJ64dCfmyfm89HofYh4Cdx3/mMHoed8X1OBeUgR6zEHYBhMrDNelZc/d:i0mSmcS+LP/yR1c4YkKK

Score

10^/10

emotet epoch2 banker discovery trojan

Malware Config

Extracted

Family

emotet

Botnet

Epoch2

C2

149.202.197.94:8080

139.162.75.91:8080

37.187.2.199:443

165.227.156.155:443

90.77.228.193:8090

67.225.179.64:8080

87.106.139.101:8080

191.92.209.110:7080

83.136.245.190:8080

65.23.154.17:8080

190.211.207.11:443

115.78.95.230:443

190.147.215.53:22

62.75.187.192:8080

173.249.47.77:8080

104.131.44.150:8080

190.145.67.134:8090

138.201.140.110:8080

103.39.131.88:80

80.11.163.139:21

rsa_pubkey.plain

Signatures

Emotet
Emotet is a trojan that is primarily spread through spam emails.
trojan banker emotet

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	mailboxchunker.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	mailboxchunker.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	mailboxchunker.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	mailboxchunker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d226ff9f8be818bea5cfef3007ce6c3e_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d226ff9f8be818bea5cfef3007ce6c3e_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mailboxchunker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mailboxchunker.exe

Modifies data under HKEY_USERS 3 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	mailboxchunker.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	mailboxchunker.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	mailboxchunker.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
4840	mailboxchunker.exe
4840	mailboxchunker.exe
4840	mailboxchunker.exe
4840	mailboxchunker.exe
4840	mailboxchunker.exe
4840	mailboxchunker.exe
4840	mailboxchunker.exe
4840	mailboxchunker.exe
4840	mailboxchunker.exe
4840	mailboxchunker.exe
4840	mailboxchunker.exe
4840	mailboxchunker.exe
4840	mailboxchunker.exe
4840	mailboxchunker.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
4532	d226ff9f8be818bea5cfef3007ce6c3e_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4716 wrote to memory of 4532	4716	d226ff9f8be818bea5cfef3007ce6c3e_JaffaCakes118.exe	86
PID 4716 wrote to memory of 4532	4716	d226ff9f8be818bea5cfef3007ce6c3e_JaffaCakes118.exe	86
PID 4716 wrote to memory of 4532	4716	d226ff9f8be818bea5cfef3007ce6c3e_JaffaCakes118.exe	86
PID 3496 wrote to memory of 4840	3496	mailboxchunker.exe	88
PID 3496 wrote to memory of 4840	3496	mailboxchunker.exe	88
PID 3496 wrote to memory of 4840	3496	mailboxchunker.exe	88

C:\Users\Admin\AppData\Local\Temp\d226ff9f8be818bea5cfef3007ce6c3e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d226ff9f8be818bea5cfef3007ce6c3e_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4716
- C:\Users\Admin\AppData\Local\Temp\d226ff9f8be818bea5cfef3007ce6c3e_JaffaCakes118.exe
  --b2f1fc8f
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: RenamesItself
  PID:4532

C:\Windows\SysWOW64\mailboxchunker.exe
"C:\Windows\SysWOW64\mailboxchunker.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3496
- C:\Windows\SysWOW64\mailboxchunker.exe
  --74f06858
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Modifies data under HKEY_USERS
  - Suspicious behavior: EnumeratesProcesses
  PID:4840

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\Microsoft\Crypto\RSA\S-1-5-18\2ef03a69763eed69ac5af7ea9398ce42_ea0aa4d6-aa48-4733-9e64-85ab59ce35b0

Filesize
50B

MD5
38d78ef65d1f71f5f9b31abec4d5b907

SHA1
a34b524f069aadb1f87718544300e2bad01b7639

SHA256
1adee8b768ee663dbd4b88f9dd19f415e6f2c2c8cdb2f0345610bdd742091a71

SHA512
5599ec94c25927c29daf27e07158643fc1c6642f94d8fe010f66134e556f70ca1a06b18edc98376e32e74efb6b2e167f1e7480e1251487a3404b25b16807961b

Download Submit
memory/3496-12-0x0000000000620000-0x0000000000635000-memory.dmp

Filesize
84KB

Download
memory/4532-6-0x00000000005E0000-0x00000000005F5000-memory.dmp

Filesize
84KB

Download
memory/4532-17-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/4716-0-0x0000000000730000-0x0000000000745000-memory.dmp

Filesize
84KB

Download
memory/4716-1-0x0000000000720000-0x0000000000730000-memory.dmp

Filesize
64KB

Download
memory/4840-19-0x00000000004D0000-0x00000000004E5000-memory.dmp

Filesize
84KB

Download

Analysis

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