emotet | c8cafa38511409eead2fa9b2573a683deef85ddb732c32b770570b094d75ec76

General

Target

dcd71aa1485de77d108f28c8c5a2911f_JaffaCakes118.exe
Size

166KB
MD5

dcd71aa1485de77d108f28c8c5a2911f
SHA1

8f9300c03fd6cb345829317e3e9a8ebb5446151c
SHA256

c8cafa38511409eead2fa9b2573a683deef85ddb732c32b770570b094d75ec76
SHA512

2d05077fd2d73ad8835d12b76f97240b6a8f92f131531920e6a3833b646c15608d24044cc88a6810dc8d9330d1d4fc3c1162ebbb6413dfc5402901b9bac02e67
SSDEEP

3072:FzFEhaHHIUjCgArLEZXApH3UHE360eBSYURMvSepsMdin:tFzHIU2Y9KEHE36ZBSeEMS

Score

10^/10

emotet banker discovery trojan

Malware Config

Signatures

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

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	promptsound.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	dcd71aa1485de77d108f28c8c5a2911f_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dcd71aa1485de77d108f28c8c5a2911f_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	promptsound.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	promptsound.exe

Modifies data under HKEY_USERS 21 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	promptsound.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	promptsound.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	promptsound.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	promptsound.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	promptsound.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00cb000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	promptsound.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F1581BD5-C9DA-45B2-B5B8-44BACB8E6E96}\WpadNetworkName = "Network 3"	promptsound.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\6e-b8-31-e1-4b-89\WpadDecisionReason = "1"	promptsound.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\6e-b8-31-e1-4b-89\WpadDecision = "0"	promptsound.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	promptsound.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F1581BD5-C9DA-45B2-B5B8-44BACB8E6E96}\WpadDecision = "0"	promptsound.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\6e-b8-31-e1-4b-89	promptsound.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\6e-b8-31-e1-4b-89\WpadDecisionTime = 50518f534405db01	promptsound.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	promptsound.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	promptsound.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F1581BD5-C9DA-45B2-B5B8-44BACB8E6E96}\WpadDecisionTime = 50518f534405db01	promptsound.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F1581BD5-C9DA-45B2-B5B8-44BACB8E6E96}\6e-b8-31-e1-4b-89	promptsound.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	promptsound.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	promptsound.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F1581BD5-C9DA-45B2-B5B8-44BACB8E6E96}	promptsound.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F1581BD5-C9DA-45B2-B5B8-44BACB8E6E96}\WpadDecisionReason = "1"	promptsound.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2852	promptsound.exe
2852	promptsound.exe
2852	promptsound.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2096	dcd71aa1485de77d108f28c8c5a2911f_JaffaCakes118.exe

Suspicious use of UnmapMainImage 4 IoCs

pid	Process
2420	dcd71aa1485de77d108f28c8c5a2911f_JaffaCakes118.exe
2096	dcd71aa1485de77d108f28c8c5a2911f_JaffaCakes118.exe
2784	promptsound.exe
2852	promptsound.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2420 wrote to memory of 2096	2420	dcd71aa1485de77d108f28c8c5a2911f_JaffaCakes118.exe	29
PID 2420 wrote to memory of 2096	2420	dcd71aa1485de77d108f28c8c5a2911f_JaffaCakes118.exe	29
PID 2420 wrote to memory of 2096	2420	dcd71aa1485de77d108f28c8c5a2911f_JaffaCakes118.exe	29
PID 2420 wrote to memory of 2096	2420	dcd71aa1485de77d108f28c8c5a2911f_JaffaCakes118.exe	29
PID 2784 wrote to memory of 2852	2784	promptsound.exe	31
PID 2784 wrote to memory of 2852	2784	promptsound.exe	31
PID 2784 wrote to memory of 2852	2784	promptsound.exe	31
PID 2784 wrote to memory of 2852	2784	promptsound.exe	31

C:\Users\Admin\AppData\Local\Temp\dcd71aa1485de77d108f28c8c5a2911f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\dcd71aa1485de77d108f28c8c5a2911f_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2420
- C:\Users\Admin\AppData\Local\Temp\dcd71aa1485de77d108f28c8c5a2911f_JaffaCakes118.exe
  --651abf28
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: RenamesItself
  - Suspicious use of UnmapMainImage
  PID:2096

C:\Windows\SysWOW64\promptsound.exe
"C:\Windows\SysWOW64\promptsound.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2784
- C:\Windows\SysWOW64\promptsound.exe
  --fe1675a1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Modifies data under HKEY_USERS
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of UnmapMainImage
  PID:2852

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

memory/2096-5-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/2096-9-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2420-0-0x00000000001B0000-0x00000000001C1000-memory.dmp

Filesize
68KB

Download
memory/2420-1-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2420-3-0x00000000001B0000-0x00000000001C1000-memory.dmp

Filesize
68KB

Download
memory/2420-4-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2784-6-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/2852-10-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/2852-11-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

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