emotet | 7a5d773aa6ef4cf71a18234e4037788e635a3f8aeefef0e9898d69453bc53025

Resubmissions

28-12-2022 03:05

221228-dk91fahc93 10

20-12-2022 19:37

221220-ycbswsea2x 10

Analysis

max time kernel
148s
max time network
163s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
28-12-2022 03:05

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General

Target

client/2020-01-14-follow-up-Emotet-binary-after-initial-infection.exe
Size

496KB
MD5

b63535fb171eb493b69f2f3b16abe387
SHA1

9516de4b4c9de9b996a5d262f4ec633b4ed74bb1
SHA256

c2030bc67f28a570054486b23de2b7a1bccb90fc9cfbf698b8bc380bb03adeb2
SHA512

0c89c501d2d6f9dd91c38f8b695c537ba9cf227aad4057792344d328df83db395412fd17db8d9a63c571161df7f2dde4260e58c157f4c98b69e2e317a354fd0b
SSDEEP

6144:9iSzpqgWJwaLWQt4f4GijqIM48RUl1PZ3e6yIXqn3BTZe87aPqn3BTZeW7BeI1Dn:9hDa9Y4GDNO1h3etVBU83BUWUODn

Score

10^/10

emotet epoch2 banker trojan

Malware Config

Extracted

Family

emotet

Botnet

Epoch2

66.7.242.50:8080

72.186.137.156:80

197.89.27.26:8080

91.250.96.22:8080

37.187.72.193:8080

104.131.44.150:8080

167.71.10.37:8080

78.24.219.147:8080

159.65.25.128:8080

95.128.43.213:8080

179.13.185.19:80

186.86.247.171:443

110.142.38.16:80

201.173.217.124:443

169.239.182.217:8080

211.63.71.72:8080

104.131.11.150:8080

190.55.181.54:443

209.146.22.34:443

64.53.242.181:8080

rsa_pubkey.plain

Signatures

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

Drops file in System32 directory 1 IoCs

Processes:

chunkerangle.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	chunkerangle.exe

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

System Information Discovery
T1082

Modifies data under HKEY_USERS 21 IoCs

Processes:

chunkerangle.exe

description	ioc	process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EC9DDF5D-3ED3-428D-80EF-FC5E959CE3E9}\WpadDecisionTime = c07b66dd711ad901	chunkerangle.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3a-c6-14-81-70-bb	chunkerangle.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	chunkerangle.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EC9DDF5D-3ED3-428D-80EF-FC5E959CE3E9}	chunkerangle.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EC9DDF5D-3ED3-428D-80EF-FC5E959CE3E9}\WpadDecisionReason = "1"	chunkerangle.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0094000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	chunkerangle.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EC9DDF5D-3ED3-428D-80EF-FC5E959CE3E9}\WpadNetworkName = "Network 3"	chunkerangle.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EC9DDF5D-3ED3-428D-80EF-FC5E959CE3E9}\3a-c6-14-81-70-bb	chunkerangle.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3a-c6-14-81-70-bb\WpadDecision = "0"	chunkerangle.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	chunkerangle.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	chunkerangle.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	chunkerangle.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	chunkerangle.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	chunkerangle.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	chunkerangle.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EC9DDF5D-3ED3-428D-80EF-FC5E959CE3E9}\WpadDecision = "0"	chunkerangle.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3a-c6-14-81-70-bb\WpadDecisionReason = "1"	chunkerangle.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3a-c6-14-81-70-bb\WpadDecisionTime = c07b66dd711ad901	chunkerangle.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	chunkerangle.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	chunkerangle.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	chunkerangle.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

chunkerangle.exe

pid process

1648 chunkerangle.exe
1648 chunkerangle.exe
1648 chunkerangle.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

2020-01-14-follow-up-Emotet-binary-after-initial-infection.exe

pid process

1548 2020-01-14-follow-up-Emotet-binary-after-initial-infection.exe

pid	process
1648	chunkerangle.exe
1648	chunkerangle.exe
1648	chunkerangle.exe

pid	process
1548	2020-01-14-follow-up-Emotet-binary-after-initial-infection.exe

Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

2020-01-14-follow-up-Emotet-binary-after-initial-infection.exe2020-01-14-follow-up-Emotet-binary-after-initial-infection.exechunkerangle.exechunkerangle.exe

pid	process
1148	2020-01-14-follow-up-Emotet-binary-after-initial-infection.exe
1548	2020-01-14-follow-up-Emotet-binary-after-initial-infection.exe
1096	chunkerangle.exe
1648	chunkerangle.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

2020-01-14-follow-up-Emotet-binary-after-initial-infection.exechunkerangle.exe

description	pid	process	target process
PID 1148 wrote to memory of 1548	1148	2020-01-14-follow-up-Emotet-binary-after-initial-infection.exe	2020-01-14-follow-up-Emotet-binary-after-initial-infection.exe
PID 1148 wrote to memory of 1548	1148	2020-01-14-follow-up-Emotet-binary-after-initial-infection.exe	2020-01-14-follow-up-Emotet-binary-after-initial-infection.exe
PID 1148 wrote to memory of 1548	1148	2020-01-14-follow-up-Emotet-binary-after-initial-infection.exe	2020-01-14-follow-up-Emotet-binary-after-initial-infection.exe
PID 1148 wrote to memory of 1548	1148	2020-01-14-follow-up-Emotet-binary-after-initial-infection.exe	2020-01-14-follow-up-Emotet-binary-after-initial-infection.exe
PID 1096 wrote to memory of 1648	1096	chunkerangle.exe	chunkerangle.exe
PID 1096 wrote to memory of 1648	1096	chunkerangle.exe	chunkerangle.exe
PID 1096 wrote to memory of 1648	1096	chunkerangle.exe	chunkerangle.exe
PID 1096 wrote to memory of 1648	1096	chunkerangle.exe	chunkerangle.exe

C:\Users\Admin\AppData\Local\Temp\client\2020-01-14-follow-up-Emotet-binary-after-initial-infection.exe
"C:\Users\Admin\AppData\Local\Temp\client\2020-01-14-follow-up-Emotet-binary-after-initial-infection.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1148

C:\Users\Admin\AppData\Local\Temp\client\2020-01-14-follow-up-Emotet-binary-after-initial-infection.exe
--b517906e
2⤵
- Suspicious behavior: RenamesItself
- Suspicious use of SetWindowsHookEx
PID:1548

C:\Windows\SysWOW64\chunkerangle.exe
"C:\Windows\SysWOW64\chunkerangle.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1096

C:\Windows\SysWOW64\chunkerangle.exe
--8e914dab
2⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:1648

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/1096-69-0x0000000000280000-0x0000000000297000-memory.dmp

Filesize
92KB

Download
memory/1148-54-0x0000000075041000-0x0000000075043000-memory.dmp

Filesize
8KB

Download
memory/1148-55-0x0000000001C50000-0x0000000001C67000-memory.dmp

Filesize
92KB

Download
memory/1148-61-0x00000000003E0000-0x00000000003F1000-memory.dmp

Filesize
68KB

Download
memory/1548-60-0x0000000000000000-mapping.dmp

Download
memory/1548-63-0x0000000000350000-0x0000000000367000-memory.dmp

Filesize
92KB

Download
memory/1648-74-0x0000000000000000-mapping.dmp

Download
memory/1648-76-0x0000000000500000-0x0000000000517000-memory.dmp

Filesize
92KB

Download