ramnit | a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0e

General

Target

a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0e.exe
Size

149KB
MD5

c4c41774da7a3159303357633436a14c
SHA1

7ba8859d5753323b334b56af0e57a2a7abad6fef
SHA256

a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0e
SHA512

cdabc106e973646affad22e11609aae6344789c29822f32112afb13c4b98aa3fdcdf3f16f86f86ffbb377b1a78677035109fd66200c14842c625149135621cb1

Score

10^/10

ramnit banker spyware stealer trojan upx worm

Malware Config

Signatures

Ramnit
Ramnit is a versatile family that holds viruses, worms, and Trojans.
trojan spyware stealer worm banker ramnit
Executes dropped EXE 2 IoCs

Processes:

a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0eSrv.exeDesktopLayer.exe

pid process

3248 a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0eSrv.exe
1188 DesktopLayer.exe

pid	process
3248	a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0eSrv.exe
1188	DesktopLayer.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0eSrv.exe	upx
C:\Users\Admin\AppData\Local\Temp\a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0eSrv.exe	upx
C:\Program Files (x86)\Microsoft\DesktopLayer.exe	upx
C:\Program Files (x86)\Microsoft\DesktopLayer.exe	upx
behavioral2/memory/1188-123-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

Processes:

a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0eSrv.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Microsoft\pxF96.tmp	a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0eSrv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0eSrv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0eSrv.exe

Modifies Internet Explorer settings 1 TTPs 40 IoCs

adware spyware

Modify Registry

T1112

Processes:

iexplore.exeIEXPLORE.EXE

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\FlipAhead\NextUpdateDate = "327932898"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\FlipAhead\Meta	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\FlipAhead\Meta\generator$Telligent	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\FlipAhead\FileVersion = "2016061511"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30886365"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2134850540"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30886365"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\FlipAhead\Meta\generator$http://www.typepad.com/	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2127037261"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "327884313"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\FlipAhead\Meta\generator$MediaWiki	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{AA1ECF41-B5D0-11EB-A11C-7E556571BED2} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\HistoryJournalCertificate\NextUpdateDate = "327900906"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\FlipAhead\Meta\generator$vBulletin 3	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\FlipAhead\Meta\generator$WordPress	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30886365"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\FlipAhead	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2127037261"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\FlipAhead\Meta\generator$Discuz!	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\HistoryJournalCertificate	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\FlipAhead\Meta\generator$vBulletin 4	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Internet Explorer\FlipAhead\Meta\generator$blogger	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

DesktopLayer.exe

pid	process
1188	DesktopLayer.exe
1188	DesktopLayer.exe
1188	DesktopLayer.exe
1188	DesktopLayer.exe
1188	DesktopLayer.exe
1188	DesktopLayer.exe
1188	DesktopLayer.exe
1188	DesktopLayer.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

iexplore.exe

pid process

3648 iexplore.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

iexplore.exe

pid process

3648 iexplore.exe
Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

iexplore.exeIEXPLORE.EXE

pid process

3648 iexplore.exe
3648 iexplore.exe
2732 IEXPLORE.EXE
2732 IEXPLORE.EXE
2732 IEXPLORE.EXE
2732 IEXPLORE.EXE

pid	process
3648	iexplore.exe

pid	process
3648	iexplore.exe

pid	process
3648	iexplore.exe
3648	iexplore.exe
2732	IEXPLORE.EXE
2732	IEXPLORE.EXE
2732	IEXPLORE.EXE
2732	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0e.exea1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0eSrv.exeDesktopLayer.exeiexplore.exe

description	pid	process	target process
PID 2204 wrote to memory of 3248	2204	a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0e.exe	a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0eSrv.exe
PID 2204 wrote to memory of 3248	2204	a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0e.exe	a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0eSrv.exe
PID 2204 wrote to memory of 3248	2204	a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0e.exe	a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0eSrv.exe
PID 3248 wrote to memory of 1188	3248	a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0eSrv.exe	DesktopLayer.exe
PID 3248 wrote to memory of 1188	3248	a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0eSrv.exe	DesktopLayer.exe
PID 3248 wrote to memory of 1188	3248	a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0eSrv.exe	DesktopLayer.exe
PID 1188 wrote to memory of 3648	1188	DesktopLayer.exe	iexplore.exe
PID 1188 wrote to memory of 3648	1188	DesktopLayer.exe	iexplore.exe
PID 3648 wrote to memory of 2732	3648	iexplore.exe	IEXPLORE.EXE
PID 3648 wrote to memory of 2732	3648	iexplore.exe	IEXPLORE.EXE
PID 3648 wrote to memory of 2732	3648	iexplore.exe	IEXPLORE.EXE

C:\Users\Admin\AppData\Local\Temp\a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0e.exe
"C:\Users\Admin\AppData\Local\Temp\a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0e.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2204

C:\Users\Admin\AppData\Local\Temp\a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0eSrv.exe
C:\Users\Admin\AppData\Local\Temp\a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0eSrv.exe
2⤵
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:3248

C:\Program Files (x86)\Microsoft\DesktopLayer.exe
"C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1188

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe"
4⤵
- Modifies Internet Explorer settings
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3648

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3648 CREDAT:82945 /prefetch:2
5⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:2732

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Program Files (x86)\Microsoft\DesktopLayer.exe
MD5
da18881ccaefeaa4942af9291cb34826

SHA1
e4f33c21684bede05ccea60dd0767250ff2b3aba

SHA256
1d736643af18fe45f74f67a68c3268b39e7dbd84aaaf46dba5e23e48e8402842

SHA512
2420cf80794f4e74fb95934698714d4386e022d68c0c4e181d9d6e189bf3fab09f920e6e9128e423a1dbf357558bab628133d1084a7a306617c3a9c2461a5901

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C:\Program Files (x86)\Microsoft\DesktopLayer.exe
MD5
da18881ccaefeaa4942af9291cb34826

SHA1
e4f33c21684bede05ccea60dd0767250ff2b3aba

SHA256
1d736643af18fe45f74f67a68c3268b39e7dbd84aaaf46dba5e23e48e8402842

SHA512
2420cf80794f4e74fb95934698714d4386e022d68c0c4e181d9d6e189bf3fab09f920e6e9128e423a1dbf357558bab628133d1084a7a306617c3a9c2461a5901

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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
MD5
a0a5a4d72ad62fd610b043c84033deaf

SHA1
aa5c3deaba3b479e004880b369f63f2b59b23b9a

SHA256
35d20d28885d84fef2a2e06125bf9626fbab13b99d1238a435a444a8db1cb9c6

SHA512
20dd0d4276e854bca2767bd4cf7f04068a23742ff33926a7ba5296d2b0a453d456f37662e443c4df2fc3027bbead658a8ca6f8be40a61c82e3d6085cf85b9243

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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
MD5
c7526e8d7f089c01c0f50bcb5e78b362

SHA1
9611f55b357bc9da5ab01d95508e235870470af4

SHA256
582df0248ae6de3738486837344ba2d286846d7262aed23b29b01d46eaba6e10

SHA512
d18bc8ae9462f4ae943ac67c74370a369ce9877ff969e607f09a1cd5d8e79871d4287bb961431ea8251b0f57b65c834c0253e41b3bf5177c3313dc663a80c84a

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C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCookies\9AV1TVNL.cookie
MD5
7a59ae63ebff9b957072820e0630775c

SHA1
962631f5aabef1e30fa4f38c2477ecce1a3ca053

SHA256
8d783c6633738341194788e6e7b2fcb71ac1c5406b2b3a31126f9b9743d65e99

SHA512
467ba3a184a3dae92c042d722f823cf10c666ab78a14d352dc9939dc0dcdfcc354d12ac8d4ce2593f95e024c2132b6c3f59726a5a4cc133b616a7c4f529e543a

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C:\Users\Admin\AppData\Local\Temp\a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0eSrv.exe
MD5
da18881ccaefeaa4942af9291cb34826

SHA1
e4f33c21684bede05ccea60dd0767250ff2b3aba

SHA256
1d736643af18fe45f74f67a68c3268b39e7dbd84aaaf46dba5e23e48e8402842

SHA512
2420cf80794f4e74fb95934698714d4386e022d68c0c4e181d9d6e189bf3fab09f920e6e9128e423a1dbf357558bab628133d1084a7a306617c3a9c2461a5901

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C:\Users\Admin\AppData\Local\Temp\a1a91e9f2f404225bdaeca436758ed79a4aca1b88bf77d9e9ecdb0a0abc3ed0eSrv.exe
MD5
da18881ccaefeaa4942af9291cb34826

SHA1
e4f33c21684bede05ccea60dd0767250ff2b3aba

SHA256
1d736643af18fe45f74f67a68c3268b39e7dbd84aaaf46dba5e23e48e8402842

SHA512
2420cf80794f4e74fb95934698714d4386e022d68c0c4e181d9d6e189bf3fab09f920e6e9128e423a1dbf357558bab628133d1084a7a306617c3a9c2461a5901

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memory/1188-117-0x0000000000000000-mapping.dmp

Download
memory/1188-122-0x00000000001F0000-0x00000000001F1000-memory.dmp

Filesize
4KB

Download
memory/1188-123-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2204-126-0x00000000004B0000-0x00000000004B1000-memory.dmp

Filesize
4KB

Download
memory/2732-128-0x0000000000000000-mapping.dmp

Download
memory/3248-114-0x0000000000000000-mapping.dmp

Download
memory/3248-119-0x00000000001E0000-0x00000000001EF000-memory.dmp

Filesize
60KB

Download
memory/3648-127-0x00007FF833AD0000-0x00007FF833B3B000-memory.dmp

Filesize
428KB

Download
memory/3648-124-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads